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Commit f4562052 authored by Linus Torvalds's avatar Linus Torvalds
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Merge tag 'hwmon-for-linus' of... 

Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging into next

Pull hwmon updates from Guenter Roeck:
 "New driver for NCT6683D

  New chip support to existing drivers:
   - add support for STTS2004 and AT30TSE004 to jc42 driver
   - add support for EMC1402/EMC1412/EMC1422 to emc1403 driver

  Other notable changes:
   - document hwmon kernel API
   - convert jc42, lm70, lm75, lm77, lm83, lm92, max1619, tmp421, and
     tmp102 drivers to use new hwmon API functions
   - replace function macros in lm80, lm92, and jc42 drivers with real
     code
   - convert emc1403 driver to use regmap, add support for additional
     attributes, and add device IDs for EMC1412, EMC1413, and EMC1414
   - various additional cleanup and minor bug fixes in several drivers"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (60 commits)
  hwmon: (nct6775) Fix probe unwind paths to properly unregister platform devices
  hwmon: (nct6683) Fix probe unwind paths to properly unregister platform devices
  hwmon: (ultra45_env) Introduce managed version of kzalloc
  hwmon: Driver for NCT6683D
  hwmon: (lm80) Rearrange code to avoid forward declarations
  hwmon: (lm80) Convert fan display function macros into functions
  hwmon: (lm80) Convert voltage display function macros into functions
  hwmon: (lm80) Convert temperature display function macros into functions
  hwmon: (lm80) Normalize all temperature values to 16 bit
  hwmon: (lm80) Simplify TEMP_FROM_REG
  hwmon: (lm83) Convert to use devm_hwmon_device_register_with_groups
  hwmon: (lm83) Rearange code to avoid forward declarations
  hwmon: (lm83) Drop FSF address
  hwmon: (max1619) Convert to use devm_hwmon_device_register_with_groups
  hwmon: (max1619) Drop function macros
  hwmon: (max1619) Rearrange code to avoid forward declarations
  hwmon: (max1619) Drop FSF address
  hwmon: (max1619) Fix critical alarm display
  hwmon: (jc42) Add support for STTS2004 and AT30TSE004
  hwmon: (jc42) Convert function macros into functions
  ...
parents 8f5759ae 9d311edd
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Documentation/hwmon/emc1403 0 → 100644
View file @ f4562052
Kernel driver emc1403
=====================
Supported chips:
* SMSC / Microchip EMC1402, EMC1412
Addresses scanned: I2C 0x18, 0x1c, 0x29, 0x4c, 0x4d, 0x5c
Prefix: 'emc1402'
Datasheets:
http://ww1.microchip.com/downloads/en/DeviceDoc/1412.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/1402.pdf
* SMSC / Microchip EMC1403, EMC1404, EMC1413, EMC1414
Addresses scanned: I2C 0x18, 0x29, 0x4c, 0x4d
Prefix: 'emc1403', 'emc1404'
Datasheets:
http://ww1.microchip.com/downloads/en/DeviceDoc/1403_1404.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/1413_1414.pdf
* SMSC / Microchip EMC1422
Addresses scanned: I2C 0x4c
Prefix: 'emc1422'
Datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/1422.pdf
* SMSC / Microchip EMC1423, EMC1424
Addresses scanned: I2C 0x4c
Prefix: 'emc1423', 'emc1424'
Datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/1423_1424.pdf
Author:
Kalhan Trisal <kalhan.trisal@intel.com
Description
-----------
The Standard Microsystems Corporation (SMSC) / Microchip EMC14xx chips
contain up to four temperature sensors. EMC14x2 support two sensors
(one internal, one external). EMC14x3 support three sensors (one internal,
two external), and EMC14x4 support four sensors (one internal, three
external).
The chips implement three limits for each sensor: low (tempX_min), high
(tempX_max) and critical (tempX_crit.) The chips also implement an
hysteresis mechanism which applies to all limits. The relative difference
is stored in a single register on the chip, which means that the relative
difference between the limit and its hysteresis is always the same for
all three limits.
This implementation detail implies the following:
* When setting a limit, its hysteresis will automatically follow, the
difference staying unchanged. For example, if the old critical limit
was 80 degrees C, and the hysteresis was 75 degrees C, and you change
the critical limit to 90 degrees C, then the hysteresis will
automatically change to 85 degrees C.
* The hysteresis values can't be set independently. We decided to make
only temp1_crit_hyst writable, while all other hysteresis attributes
are read-only. Setting temp1_crit_hyst writes the difference between
temp1_crit_hyst and temp1_crit into the chip, and the same relative
hysteresis applies automatically to all other limits.
* The limits should be set before the hysteresis.
Documentation/hwmon/hwmon-kernel-api.txt 0 → 100644
View file @ f4562052
The Linux Hardware Monitoring kernel API.
=========================================
Guenter Roeck
Introduction
------------
This document describes the API that can be used by hardware monitoring
drivers that want to use the hardware monitoring framework.
This document does not describe what a hardware monitoring (hwmon) Driver or
Device is. It also does not describe the API which can be used by user space
to communicate with a hardware monitoring device. If you want to know this
then please read the following file: Documentation/hwmon/sysfs-interface.
For additional guidelines on how to write and improve hwmon drivers, please
also read Documentation/hwmon/submitting-patches.
The API
-------
Each hardware monitoring driver must #include <linux/hwmon.h> and, in most
cases, <linux/hwmon-sysfs.h>. linux/hwmon.h declares the following
register/unregister functions:
struct device *hwmon_device_register(struct device *dev);
struct device *
hwmon_device_register_with_groups(struct device *dev, const char *name,
void *drvdata,
const struct attribute_group **groups);
struct device *
devm_hwmon_device_register_with_groups(struct device *dev,
const char *name, void *drvdata,
const struct attribute_group **groups);
void hwmon_device_unregister(struct device *dev);
void devm_hwmon_device_unregister(struct device *dev);
hwmon_device_register registers a hardware monitoring device. The parameter
of this function is a pointer to the parent device.
This function returns a pointer to the newly created hardware monitoring device
or PTR_ERR for failure. If this registration function is used, hardware
monitoring sysfs attributes are expected to have been created and attached to
the parent device prior to calling hwmon_device_register. A name attribute must
have been created by the caller.
hwmon_device_register_with_groups is similar to hwmon_device_register. However,
it has additional parameters. The name parameter is a pointer to the hwmon
device name. The registration function wil create a name sysfs attribute
pointing to this name. The drvdata parameter is the pointer to the local
driver data. hwmon_device_register_with_groups will attach this pointer
to the newly allocated hwmon device. The pointer can be retrieved by the driver
using dev_get_drvdata() on the hwmon device pointer. The groups parameter is
a pointer to a list of sysfs attribute groups. The list must be NULL terminated.
hwmon_device_register_with_groups creates the hwmon device with name attribute
as well as all sysfs attributes attached to the hwmon device.
devm_hwmon_device_register_with_groups is similar to
hwmon_device_register_with_groups. However, it is device managed, meaning the
hwmon device does not have to be removed explicitly by the removal function.
hwmon_device_unregister deregisters a registered hardware monitoring device.
The parameter of this function is the pointer to the registered hardware
monitoring device structure. This function must be called from the driver
remove function if the hardware monitoring device was registered with
hwmon_device_register or with hwmon_device_register_with_groups.
devm_hwmon_device_unregister does not normally have to be called. It is only
needed for error handling, and only needed if the driver probe fails after
the call to devm_hwmon_device_register_with_groups.
The header file linux/hwmon-sysfs.h provides a number of useful macros to
declare and use hardware monitoring sysfs attributes.
In many cases, you can use the exsting define DEVICE_ATTR to declare such
attributes. This is feasible if an attribute has no additional context. However,
in many cases there will be additional information such as a sensor index which
will need to be passed to the sysfs attribute handling function.
SENSOR_DEVICE_ATTR and SENSOR_DEVICE_ATTR_2 can be used to define attributes
which need such additional context information. SENSOR_DEVICE_ATTR requires
one additional argument, SENSOR_DEVICE_ATTR_2 requires two.
SENSOR_DEVICE_ATTR defines a struct sensor_device_attribute variable.
This structure has the following fields.
struct sensor_device_attribute {
struct device_attribute dev_attr;
int index;
};
You can use to_sensor_dev_attr to get the pointer to this structure from the
attribute read or write function. Its parameter is the device to which the
attribute is attached.
SENSOR_DEVICE_ATTR_2 defines a struct sensor_device_attribute_2 variable,
which is defined as follows.
struct sensor_device_attribute_2 {
struct device_attribute dev_attr;
u8 index;
u8 nr;
};
Use to_sensor_dev_attr_2 to get the pointer to this structure. Its parameter
is the device to which the attribute is attached.
Documentation/hwmon/jc42
View file @ f4562052
......@@ -5,9 +5,12 @@ Supported chips:
* Analog Devices ADT7408
Datasheets:
http://www.analog.com/static/imported-files/data_sheets/ADT7408.pdf
* Atmel AT30TS00
* Atmel AT30TS00, AT30TS002A/B, AT30TSE004A
Datasheets:
http://www.atmel.com/Images/doc8585.pdf
http://www.atmel.com/Images/doc8711.pdf
http://www.atmel.com/Images/Atmel-8852-SEEPROM-AT30TSE002A-Datasheet.pdf
http://www.atmel.com/Images/Atmel-8868-DTS-AT30TSE004A-Datasheet.pdf
* IDT TSE2002B3, TSE2002GB2, TS3000B3, TS3000GB2
Datasheets:
http://www.idt.com/sites/default/files/documents/IDT_TSE2002B3C_DST_20100512_120303152056.pdf
......@@ -34,12 +37,13 @@ Supported chips:
Datasheet:
http://www.onsemi.com/pub_link/Collateral/CAT34TS02-D.PDF
http://www.onsemi.com/pub/Collateral/CAT6095-D.PDF
* ST Microelectronics STTS424, STTS424E02, STTS2002, STTS3000
* ST Microelectronics STTS424, STTS424E02, STTS2002, STTS2004, STTS3000
Datasheets:
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00157556.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00157558.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00225278.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATA_BRIEF/CD00270920.pdf
http://www.st.com/web/en/resource/technical/document/datasheet/CD00157556.pdf
http://www.st.com/web/en/resource/technical/document/datasheet/CD00157558.pdf
http://www.st.com/web/en/resource/technical/document/datasheet/CD00266638.pdf
http://www.st.com/web/en/resource/technical/document/datasheet/CD00225278.pdf
http://www.st.com/web/en/resource/technical/document/datasheet/DM00076709.pdf
* JEDEC JC 42.4 compliant temperature sensor chips
Datasheet:
http://www.jedec.org/sites/default/files/docs/4_01_04R19.pdf
......
Documentation/hwmon/lm77
View file @ f4562052
......@@ -18,5 +18,21 @@ sensor incorporates a band-gap type temperature sensor,
10-bit ADC, and a digital comparator with user-programmable upper
and lower limit values.
Limits can be set through the Overtemperature Shutdown register and
Hysteresis register.
The LM77 implements 3 limits: low (temp1_min), high (temp1_max) and
critical (temp1_crit.) It also implements an hysteresis mechanism which
applies to all 3 limits. The relative difference is stored in a single
register on the chip, which means that the relative difference between
the limit and its hysteresis is always the same for all 3 limits.
This implementation detail implies the following:
* When setting a limit, its hysteresis will automatically follow, the
difference staying unchanged. For example, if the old critical limit
was 80 degrees C, and the hysteresis was 75 degrees C, and you change
the critical limit to 90 degrees C, then the hysteresis will
automatically change to 85 degrees C.
* All 3 hysteresis can't be set independently. We decided to make
temp1_crit_hyst writable, while temp1_min_hyst and temp1_max_hyst are
read-only. Setting temp1_crit_hyst writes the difference between
temp1_crit_hyst and temp1_crit into the chip, and the same relative
hysteresis applies automatically to the low and high limits.
* The limits should be set before the hysteresis.
Documentation/hwmon/nct6683 0 → 100644
View file @ f4562052
Kernel driver nct6683
=====================
Supported chips:
* Nuvoton NCT6683D
Prefix: 'nct6683'
Addresses scanned: ISA address retrieved from Super I/O registers
Datasheet: Available from Nuvoton upon request
Authors:
Guenter Roeck <linux@roeck-us.net>
Description
-----------
This driver implements support for the Nuvoton NCT6683D eSIO chip.
The chips implement up to shared 32 temperature and voltage sensors.
It supports up to 16 fan rotation sensors and up to 8 fan control engines.
Temperatures are measured in degrees Celsius. Measurement resolution is
0.5 degrees C.
Voltage sensors (also known as IN sensors) report their values in millivolts.
Fan rotation speeds are reported in RPM (rotations per minute).
Usage Note
----------
Limit register locations on Intel boards with EC firmware version 1.0
build date 04/03/13 do not match the register locations in the Nuvoton
datasheet. Nuvoton confirms that Intel uses a special firmware version
with different register addresses. The specification describing the Intel
firmware is held under NDA by Nuvoton and Intel and not available
to the public.
Some of the register locations can be reverse engineered; others are too
well hidden. Given this, writing any values from the operating system is
considered too risky with this firmware and has been disabled. All limits
must all be written from the BIOS.
The driver has only been tested with the Intel firmware, and by default
only instantiates on Intel boards. To enable it on non-Intel boards,
set the 'force' module parameter to 1.
Tested Boards and Firmware Versions
-----------------------------------
The driver has been reported to work with the following boards and
firmware versions.
Board Firmware version
---------------------------------------------------------------
Intel DH87RL NCT6683D EC firmware version 1.0 build 04/03/13
Intel DH87MC NCT6683D EC firmware version 1.0 build 04/03/13
Intel DB85FL NCT6683D EC firmware version 1.0 build 04/03/13
MAINTAINERS
View file @ f4562052
......@@ -355,7 +355,7 @@ F: Documentation/hwmon/adm1025
F: drivers/hwmon/adm1025.c
ADM1029 HARDWARE MONITOR DRIVER
M: Corentin Labbe <corentin.labbe@geomatys.fr>
M: Corentin Labbe <clabbe.montjoie@gmail.com>
L: lm-sensors@lm-sensors.org
S: Maintained
F: drivers/hwmon/adm1029.c
......
drivers/hwmon/Kconfig
View file @ f4562052
......@@ -1065,6 +1065,16 @@ config SENSORS_NTC_THERMISTOR
This driver can also be built as a module. If so, the module
will be called ntc-thermistor.
config SENSORS_NCT6683
tristate "Nuvoton NCT6683D"
depends on !PPC
help
If you say yes here you get support for the hardware monitoring
functionality of the Nuvoton NCT6683D eSIO chip.
This driver can also be built as a module. If so, the module
will be called nct6683.
config SENSORS_NCT6775
tristate "Nuvoton NCT6775F and compatibles"
depends on !PPC
......
drivers/hwmon/Makefile
View file @ f4562052
......@@ -114,6 +114,7 @@ obj-$(CONFIG_SENSORS_MAX6650) += max6650.o
obj-$(CONFIG_SENSORS_MAX6697) += max6697.o
obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o
obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o
obj-$(CONFIG_SENSORS_NCT6683) += nct6683.o
obj-$(CONFIG_SENSORS_NCT6775) += nct6775.o
obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o
obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
......
drivers/hwmon/adm1029.c
View file @ f4562052
/*
* adm1029.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
*
* Copyright (C) 2006 Corentin LABBE <corentin.labbe@geomatys.fr>
* Copyright (C) 2006 Corentin LABBE <clabbe.montjoie@gmail.com>
*
* Based on LM83 Driver by Jean Delvare <jdelvare@suse.de>
*
......@@ -449,6 +449,6 @@ static struct adm1029_data *adm1029_update_device(struct device *dev)
module_i2c_driver(adm1029_driver);
MODULE_AUTHOR("Corentin LABBE <corentin.labbe@geomatys.fr>");
MODULE_AUTHOR("Corentin LABBE <clabbe.montjoie@gmail.com>");
MODULE_DESCRIPTION("adm1029 driver");
MODULE_LICENSE("GPL v2");
drivers/hwmon/emc1403.c
View file @ f4562052
......@@ -18,9 +18,6 @@
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* TODO
* - cache alarm and critical limit registers
*/
#include <linux/module.h>
......@@ -32,22 +29,18 @@
#include <linux/err.h>
#include <linux/sysfs.h>
#include <linux/mutex.h>
#include <linux/jiffies.h>
#include <linux/regmap.h>
#define THERMAL_PID_REG 0xfd
#define THERMAL_SMSC_ID_REG 0xfe
#define THERMAL_REVISION_REG 0xff
enum emc1403_chip { emc1402, emc1403, emc1404 };
struct thermal_data {
struct i2c_client *client;
const struct attribute_group *groups[3];
struct regmap *regmap;
struct mutex mutex;
/*
* Cache the hyst value so we don't keep re-reading it. In theory
* we could cache it forever as nobody else should be writing it.
*/
u8 cached_hyst;
unsigned long hyst_valid;
const struct attribute_group *groups[4];
};
static ssize_t show_temp(struct device *dev,
......@@ -55,12 +48,13 @@ static ssize_t show_temp(struct device *dev,
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct thermal_data *data = dev_get_drvdata(dev);
unsigned int val;
int retval;
retval = i2c_smbus_read_byte_data(data->client, sda->index);
retval = regmap_read(data->regmap, sda->index, &val);
if (retval < 0)
return retval;
return sprintf(buf, "%d000\n", retval);
return sprintf(buf, "%d000\n", val);
}
static ssize_t show_bit(struct device *dev,
......@@ -68,12 +62,13 @@ static ssize_t show_bit(struct device *dev,
{
struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
struct thermal_data *data = dev_get_drvdata(dev);
unsigned int val;
int retval;
retval = i2c_smbus_read_byte_data(data->client, sda->nr);
retval = regmap_read(data->regmap, sda->nr, &val);
if (retval < 0)
return retval;
return sprintf(buf, "%d\n", !!(retval & sda->index));
return sprintf(buf, "%d\n", !!(val & sda->index));
}
static ssize_t store_temp(struct device *dev,
......@@ -86,7 +81,7 @@ static ssize_t store_temp(struct device *dev,
if (kstrtoul(buf, 10, &val))
return -EINVAL;
retval = i2c_smbus_write_byte_data(data->client, sda->index,
retval = regmap_write(data->regmap, sda->index,
DIV_ROUND_CLOSEST(val, 1000));
if (retval < 0)
return retval;
......@@ -98,51 +93,51 @@ static ssize_t store_bit(struct device *dev,
{
struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
struct thermal_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
unsigned long val;
int retval;
if (kstrtoul(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->mutex);
retval = i2c_smbus_read_byte_data(client, sda->nr);
retval = regmap_update_bits(data->regmap, sda->nr, sda->index,
val ? sda->index : 0);
if (retval < 0)
goto fail;
retval &= ~sda->index;
if (val)
retval |= sda->index;
retval = i2c_smbus_write_byte_data(client, sda->index, retval);
if (retval == 0)
retval = count;
fail:
mutex_unlock(&data->mutex);
return retval;
return count;
}
static ssize_t show_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t show_hyst_common(struct device *dev,
struct device_attribute *attr, char *buf,
bool is_min)
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct thermal_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct regmap *regmap = data->regmap;
unsigned int limit;
unsigned int hyst;
int retval;
int hyst;
retval = i2c_smbus_read_byte_data(client, sda->index);
retval = regmap_read(regmap, sda->index, &limit);
if (retval < 0)
return retval;
if (time_after(jiffies, data->hyst_valid)) {
hyst = i2c_smbus_read_byte_data(client, 0x21);
if (hyst < 0)
retval = regmap_read(regmap, 0x21, &hyst);
if (retval < 0)
return retval;
data->cached_hyst = hyst;
data->hyst_valid = jiffies + HZ;
}
return sprintf(buf, "%d000\n", retval - data->cached_hyst);
return sprintf(buf, "%d000\n", is_min ? limit + hyst : limit - hyst);
}
static ssize_t show_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
{
return show_hyst_common(dev, attr, buf, false);
}
static ssize_t show_min_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
{
return show_hyst_common(dev, attr, buf, true);
}
static ssize_t store_hyst(struct device *dev,
......@@ -150,7 +145,8 @@ static ssize_t store_hyst(struct device *dev,
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct thermal_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct regmap *regmap = data->regmap;
unsigned int limit;
int retval;
int hyst;
unsigned long val;
......@@ -159,23 +155,15 @@ static ssize_t store_hyst(struct device *dev,
return -EINVAL;
mutex_lock(&data->mutex);
retval = i2c_smbus_read_byte_data(client, sda->index);
retval = regmap_read(regmap, sda->index, &limit);
if (retval < 0)
goto fail;
hyst = retval * 1000 - val;
hyst = DIV_ROUND_CLOSEST(hyst, 1000);
if (hyst < 0 || hyst > 255) {
retval = -ERANGE;
goto fail;
}
retval = i2c_smbus_write_byte_data(client, 0x21, hyst);
if (retval == 0) {
hyst = limit * 1000 - val;
hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255);
retval = regmap_write(regmap, 0x21, hyst);
if (retval == 0)
retval = count;
data->cached_hyst = hyst;
data->hyst_valid = jiffies + HZ;
}
fail:
mutex_unlock(&data->mutex);
return retval;
......@@ -198,6 +186,8 @@ static SENSOR_DEVICE_ATTR_2(temp1_max_alarm, S_IRUGO,
show_bit, NULL, 0x35, 0x01);
static SENSOR_DEVICE_ATTR_2(temp1_crit_alarm, S_IRUGO,
show_bit, NULL, 0x37, 0x01);
static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x06);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_hyst, NULL, 0x05);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO | S_IWUSR,
show_hyst, store_hyst, 0x20);
......@@ -208,14 +198,16 @@ static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
show_temp, store_temp, 0x19);
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0x01);
static SENSOR_DEVICE_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x02);
static SENSOR_DEVICE_ATTR_2(temp2_min_alarm, S_IRUGO,
show_bit, NULL, 0x36, 0x02);
static SENSOR_DEVICE_ATTR_2(temp2_max_alarm, S_IRUGO,
show_bit, NULL, 0x35, 0x02);
static SENSOR_DEVICE_ATTR_2(temp2_crit_alarm, S_IRUGO,
show_bit, NULL, 0x37, 0x02);
static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO | S_IWUSR,
show_hyst, store_hyst, 0x19);
static SENSOR_DEVICE_ATTR(temp2_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x08);
static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO, show_hyst, NULL, 0x07);
static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_hyst, NULL, 0x19);
static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO | S_IWUSR,
show_temp, store_temp, 0x16);
......@@ -224,14 +216,16 @@ static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
show_temp, store_temp, 0x1A);
static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 0x23);
static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x04);
static SENSOR_DEVICE_ATTR_2(temp3_min_alarm, S_IRUGO,
show_bit, NULL, 0x36, 0x04);
static SENSOR_DEVICE_ATTR_2(temp3_max_alarm, S_IRUGO,
show_bit, NULL, 0x35, 0x04);
static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO,
show_bit, NULL, 0x37, 0x04);
static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO | S_IWUSR,
show_hyst, store_hyst, 0x1A);
static SENSOR_DEVICE_ATTR(temp3_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x16);
static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO, show_hyst, NULL, 0x15);
static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_hyst, NULL, 0x1A);
static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO | S_IWUSR,
show_temp, store_temp, 0x2D);
......@@ -240,44 +234,66 @@ static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
show_temp, store_temp, 0x30);
static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 0x2A);
static SENSOR_DEVICE_ATTR_2(temp4_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x08);
static SENSOR_DEVICE_ATTR_2(temp4_min_alarm, S_IRUGO,
show_bit, NULL, 0x36, 0x08);
static SENSOR_DEVICE_ATTR_2(temp4_max_alarm, S_IRUGO,
show_bit, NULL, 0x35, 0x08);
static SENSOR_DEVICE_ATTR_2(temp4_crit_alarm, S_IRUGO,
show_bit, NULL, 0x37, 0x08);
static SENSOR_DEVICE_ATTR(temp4_crit_hyst, S_IRUGO | S_IWUSR,
show_hyst, store_hyst, 0x30);
static SENSOR_DEVICE_ATTR(temp4_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x2D);
static SENSOR_DEVICE_ATTR(temp4_max_hyst, S_IRUGO, show_hyst, NULL, 0x2C);
static SENSOR_DEVICE_ATTR(temp4_crit_hyst, S_IRUGO, show_hyst, NULL, 0x30);
static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR,
show_bit, store_bit, 0x03, 0x40);
static struct attribute *emc1403_attrs[] = {
static struct attribute *emc1402_attrs[] = {
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_min_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
&sensor_dev_attr_power_state.dev_attr.attr,
NULL
};
static const struct attribute_group emc1402_group = {
.attrs = emc1402_attrs,
};
static struct attribute *emc1403_attrs[] = {
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_crit.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp3_fault.dev_attr.attr,
&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_min_hyst.dev_attr.attr,
&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
&sensor_dev_attr_power_state.dev_attr.attr,
NULL
};
......@@ -290,9 +306,12 @@ static struct attribute *emc1404_attrs[] = {
&sensor_dev_attr_temp4_max.dev_attr.attr,
&sensor_dev_attr_temp4_crit.dev_attr.attr,
&sensor_dev_attr_temp4_input.dev_attr.attr,
&sensor_dev_attr_temp4_fault.dev_attr.attr,
&sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_min_hyst.dev_attr.attr,
&sensor_dev_attr_temp4_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp4_crit_hyst.dev_attr.attr,
NULL
};
......@@ -301,6 +320,39 @@ static const struct attribute_group emc1404_group = {
.attrs = emc1404_attrs,
};
/*
* EMC14x2 uses a different register and different bits to report alarm and
* fault status. For simplicity, provide a separate attribute group for this
* chip series.
* Since we can not re-use the same attribute names, create a separate attribute
* array.
*/
static struct sensor_device_attribute_2 emc1402_alarms[] = {
SENSOR_ATTR_2(temp1_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x20),
SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x40),
SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x01),
SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x02, 0x04),
SENSOR_ATTR_2(temp2_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x08),
SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x10),
SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x02),
};
static struct attribute *emc1402_alarm_attrs[] = {
&emc1402_alarms[0].dev_attr.attr,
&emc1402_alarms[1].dev_attr.attr,
&emc1402_alarms[2].dev_attr.attr,
&emc1402_alarms[3].dev_attr.attr,
&emc1402_alarms[4].dev_attr.attr,
&emc1402_alarms[5].dev_attr.attr,
&emc1402_alarms[6].dev_attr.attr,
NULL,
};
static const struct attribute_group emc1402_alarm_group = {
.attrs = emc1402_alarm_attrs,
};
static int emc1403_detect(struct i2c_client *client,
struct i2c_board_info *info)
{
......@@ -313,9 +365,15 @@ static int emc1403_detect(struct i2c_client *client,
id = i2c_smbus_read_byte_data(client, THERMAL_PID_REG);
switch (id) {
case 0x20:
strlcpy(info->type, "emc1402", I2C_NAME_SIZE);
break;
case 0x21:
strlcpy(info->type, "emc1403", I2C_NAME_SIZE);
break;
case 0x22:
strlcpy(info->type, "emc1422", I2C_NAME_SIZE);
break;
case 0x23:
strlcpy(info->type, "emc1423", I2C_NAME_SIZE);
break;
......@@ -336,6 +394,35 @@ static int emc1403_detect(struct i2c_client *client,
return 0;
}
static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0x00: /* internal diode high byte */
case 0x01: /* external diode 1 high byte */
case 0x02: /* status */
case 0x10: /* external diode 1 low byte */
case 0x1b: /* external diode fault */
case 0x23: /* external diode 2 high byte */
case 0x24: /* external diode 2 low byte */
case 0x29: /* internal diode low byte */
case 0x2a: /* externl diode 3 high byte */
case 0x2b: /* external diode 3 low byte */
case 0x35: /* high limit status */
case 0x36: /* low limit status */
case 0x37: /* therm limit status */
return true;
default:
return false;
}
}
static struct regmap_config emc1403_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = emc1403_regmap_is_volatile,
};
static int emc1403_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
......@@ -347,13 +434,23 @@ static int emc1403_probe(struct i2c_client *client,
if (data == NULL)
return -ENOMEM;
data->client = client;
data->regmap = devm_regmap_init_i2c(client, &emc1403_regmap_config);
if (IS_ERR(data->regmap))
return PTR_ERR(data->regmap);
mutex_init(&data->mutex);
data->hyst_valid = jiffies - 1; /* Expired */
data->groups[0] = &emc1403_group;
if (id->driver_data)
data->groups[1] = &emc1404_group;
switch (id->driver_data) {
case emc1404:
data->groups[2] = &emc1404_group;
case emc1403:
data->groups[1] = &emc1403_group;
case emc1402:
data->groups[0] = &emc1402_group;
}
if (id->driver_data == emc1402)
data->groups[1] = &emc1402_alarm_group;
hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
client->name, data,
......@@ -366,14 +463,20 @@ static int emc1403_probe(struct i2c_client *client,
}
static const unsigned short emc1403_address_list[] = {
0x18, 0x29, 0x4c, 0x4d, I2C_CLIENT_END
0x18, 0x1c, 0x29, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END
};
/* Last digit of chip name indicates number of channels */
static const struct i2c_device_id emc1403_idtable[] = {
{ "emc1403", 0 },
{ "emc1404", 1 },
{ "emc1423", 0 },
{ "emc1424", 1 },
{ "emc1402", emc1402 },
{ "emc1403", emc1403 },
{ "emc1404", emc1404 },
{ "emc1412", emc1402 },
{ "emc1413", emc1403 },
{ "emc1414", emc1404 },
{ "emc1422", emc1402 },
{ "emc1423", emc1403 },
{ "emc1424", emc1404 },
{ }
};
MODULE_DEVICE_TABLE(i2c, emc1403_idtable);
......
drivers/hwmon/f71805f.c
View file @ f4562052
......@@ -1387,10 +1387,8 @@ static int f71805f_probe(struct platform_device *pdev)
data = devm_kzalloc(&pdev->dev, sizeof(struct f71805f_data),
GFP_KERNEL);
if (!data) {
pr_err("Out of memory\n");
if (!data)
return -ENOMEM;
}
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!devm_request_region(&pdev->dev, res->start + ADDR_REG_OFFSET, 2,
......
drivers/hwmon/g762.c
View file @ f4562052
......@@ -586,7 +586,7 @@ static int do_set_fan_startv(struct device *dev, unsigned long val)
*/
#ifdef CONFIG_OF
static struct of_device_id g762_dt_match[] = {
static const struct of_device_id g762_dt_match[] = {
{ .compatible = "gmt,g762" },
{ .compatible = "gmt,g763" },
{ },
......
drivers/hwmon/gpio-fan.c
View file @ f4562052
......@@ -482,7 +482,7 @@ static int gpio_fan_get_of_pdata(struct device *dev,
return 0;
}
static struct of_device_id of_gpio_fan_match[] = {
static const struct of_device_id of_gpio_fan_match[] = {
{ .compatible = "gpio-fan", },
{},
};
......
drivers/hwmon/ibmpex.c
View file @ f4562052
......@@ -463,10 +463,8 @@ static void ibmpex_register_bmc(int iface, struct device *dev)
int err;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data) {
dev_err(dev, "Insufficient memory for BMC interface.\n");
if (!data)
return;
}
data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
data->address.channel = IPMI_BMC_CHANNEL;
......
drivers/hwmon/iio_hwmon.c
View file @ f4562052
......@@ -163,7 +163,7 @@ static int iio_hwmon_remove(struct platform_device *pdev)
return 0;
}
static struct of_device_id iio_hwmon_of_match[] = {
static const struct of_device_id iio_hwmon_of_match[] = {
{ .compatible = "iio-hwmon", },
{ }
};
......
drivers/hwmon/jc42.c
View file @ f4562052
......@@ -65,6 +65,7 @@ static const unsigned short normal_i2c[] = {
/* Manufacturer IDs */
#define ADT_MANID 0x11d4 /* Analog Devices */
#define ATMEL_MANID 0x001f /* Atmel */
#define ATMEL_MANID2 0x1114 /* Atmel */
#define MAX_MANID 0x004d /* Maxim */
#define IDT_MANID 0x00b3 /* IDT */
#define MCP_MANID 0x0054 /* Microchip */
......@@ -82,6 +83,9 @@ static const unsigned short normal_i2c[] = {
#define AT30TS00_DEVID 0x8201
#define AT30TS00_DEVID_MASK 0xffff
#define AT30TSE004_DEVID 0x2200
#define AT30TSE004_DEVID_MASK 0xffff
/* IDT */
#define TS3000B3_DEVID 0x2903 /* Also matches TSE2002B3 */
#define TS3000B3_DEVID_MASK 0xffff
......@@ -130,6 +134,9 @@ static const unsigned short normal_i2c[] = {
#define STTS2002_DEVID 0x0300
#define STTS2002_DEVID_MASK 0xffff
#define STTS2004_DEVID 0x2201
#define STTS2004_DEVID_MASK 0xffff
#define STTS3000_DEVID 0x0200
#define STTS3000_DEVID_MASK 0xffff
......@@ -144,6 +151,7 @@ struct jc42_chips {
static struct jc42_chips jc42_chips[] = {
{ ADT_MANID, ADT7408_DEVID, ADT7408_DEVID_MASK },
{ ATMEL_MANID, AT30TS00_DEVID, AT30TS00_DEVID_MASK },
{ ATMEL_MANID2, AT30TSE004_DEVID, AT30TSE004_DEVID_MASK },
{ IDT_MANID, TS3000B3_DEVID, TS3000B3_DEVID_MASK },
{ IDT_MANID, TS3000GB2_DEVID, TS3000GB2_DEVID_MASK },
{ MAX_MANID, MAX6604_DEVID, MAX6604_DEVID_MASK },
......@@ -158,9 +166,25 @@ static struct jc42_chips jc42_chips[] = {
{ STM_MANID, STTS424_DEVID, STTS424_DEVID_MASK },
{ STM_MANID, STTS424E_DEVID, STTS424E_DEVID_MASK },
{ STM_MANID, STTS2002_DEVID, STTS2002_DEVID_MASK },
{ STM_MANID, STTS2004_DEVID, STTS2004_DEVID_MASK },
{ STM_MANID, STTS3000_DEVID, STTS3000_DEVID_MASK },
};
enum temp_index {
t_input = 0,
t_crit,
t_min,
t_max,
t_num_temp
};
static const u8 temp_regs[t_num_temp] = {
[t_input] = JC42_REG_TEMP,
[t_crit] = JC42_REG_TEMP_CRITICAL,
[t_min] = JC42_REG_TEMP_LOWER,
[t_max] = JC42_REG_TEMP_UPPER,
};
/* Each client has this additional data */
struct jc42_data {
struct i2c_client *client;
......@@ -170,69 +194,7 @@ struct jc42_data {
unsigned long last_updated; /* In jiffies */
u16 orig_config; /* original configuration */
u16 config; /* current configuration */
u16 temp_input; /* Temperatures */
u16 temp_crit;
u16 temp_min;
u16 temp_max;
};
static int jc42_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info);
static int jc42_remove(struct i2c_client *client);
static struct jc42_data *jc42_update_device(struct device *dev);
static const struct i2c_device_id jc42_id[] = {
{ "jc42", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, jc42_id);
#ifdef CONFIG_PM
static int jc42_suspend(struct device *dev)
{
struct jc42_data *data = dev_get_drvdata(dev);
data->config |= JC42_CFG_SHUTDOWN;
i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
data->config);
return 0;
}
static int jc42_resume(struct device *dev)
{
struct jc42_data *data = dev_get_drvdata(dev);
data->config &= ~JC42_CFG_SHUTDOWN;
i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
data->config);
return 0;
}
static const struct dev_pm_ops jc42_dev_pm_ops = {
.suspend = jc42_suspend,
.resume = jc42_resume,
};
#define JC42_DEV_PM_OPS (&jc42_dev_pm_ops)
#else
#define JC42_DEV_PM_OPS NULL
#endif /* CONFIG_PM */
/* This is the driver that will be inserted */
static struct i2c_driver jc42_driver = {
.class = I2C_CLASS_SPD,
.driver = {
.name = "jc42",
.pm = JC42_DEV_PM_OPS,
},
.probe = jc42_probe,
.remove = jc42_remove,
.id_table = jc42_id,
.detect = jc42_detect,
.address_list = normal_i2c,
u16 temp[t_num_temp];/* Temperatures */
};
#define JC42_TEMP_MIN_EXTENDED (-40000)
......@@ -261,79 +223,81 @@ static int jc42_temp_from_reg(s16 reg)
return reg * 125 / 2;
}
/* sysfs stuff */
/* read routines for temperature limits */
#define show(value) \
static ssize_t show_##value(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct jc42_data *data = jc42_update_device(dev); \
if (IS_ERR(data)) \
return PTR_ERR(data); \
return sprintf(buf, "%d\n", jc42_temp_from_reg(data->value)); \
static struct jc42_data *jc42_update_device(struct device *dev)
{
struct jc42_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct jc42_data *ret = data;
int i, val;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
for (i = 0; i < t_num_temp; i++) {
val = i2c_smbus_read_word_swapped(client, temp_regs[i]);
if (val < 0) {
ret = ERR_PTR(val);
goto abort;
}
data->temp[i] = val;
}
data->last_updated = jiffies;
data->valid = true;
}
abort:
mutex_unlock(&data->update_lock);
return ret;
}
show(temp_input);
show(temp_crit);
show(temp_min);
show(temp_max);
/* sysfs functions */
/* read routines for hysteresis values */
static ssize_t show_temp_crit_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = jc42_update_device(dev);
int temp, hyst;
if (IS_ERR(data))
return PTR_ERR(data);
temp = jc42_temp_from_reg(data->temp_crit);
hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
>> JC42_CFG_HYST_SHIFT];
return sprintf(buf, "%d\n", temp - hyst);
return sprintf(buf, "%d\n",
jc42_temp_from_reg(data->temp[attr->index]));
}
static ssize_t show_temp_max_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t show_temp_hyst(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = jc42_update_device(dev);
int temp, hyst;
if (IS_ERR(data))
return PTR_ERR(data);
temp = jc42_temp_from_reg(data->temp_max);
temp = jc42_temp_from_reg(data->temp[attr->index]);
hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
>> JC42_CFG_HYST_SHIFT];
return sprintf(buf, "%d\n", temp - hyst);
}
/* write routines */
#define set(value, reg) \
static ssize_t set_##value(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct jc42_data *data = dev_get_drvdata(dev); \
int err, ret = count; \
long val; \
if (kstrtol(buf, 10, &val) < 0) \
return -EINVAL; \
mutex_lock(&data->update_lock); \
data->value = jc42_temp_to_reg(val, data->extended); \
err = i2c_smbus_write_word_swapped(data->client, reg, data->value); \
if (err < 0) \
ret = err; \
mutex_unlock(&data->update_lock); \
return ret; \
}
static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = dev_get_drvdata(dev);
int err, ret = count;
int nr = attr->index;
long val;
set(temp_min, JC42_REG_TEMP_LOWER);
set(temp_max, JC42_REG_TEMP_UPPER);
set(temp_crit, JC42_REG_TEMP_CRITICAL);
if (kstrtol(buf, 10, &val) < 0)
return -EINVAL;
mutex_lock(&data->update_lock);
data->temp[nr] = jc42_temp_to_reg(val, data->extended);
err = i2c_smbus_write_word_swapped(data->client, temp_regs[nr],
data->temp[nr]);
if (err < 0)
ret = err;
mutex_unlock(&data->update_lock);
return ret;
}
/*
* JC42.4 compliant chips only support four hysteresis values.
......@@ -352,7 +316,7 @@ static ssize_t set_temp_crit_hyst(struct device *dev,
if (kstrtoul(buf, 10, &val) < 0)
return -EINVAL;
diff = jc42_temp_from_reg(data->temp_crit) - val;
diff = jc42_temp_from_reg(data->temp[t_crit]) - val;
hyst = 0;
if (diff > 0) {
if (diff < 2250)
......@@ -384,25 +348,20 @@ static ssize_t show_alarm(struct device *dev,
if (IS_ERR(data))
return PTR_ERR(data);
val = data->temp_input;
val = data->temp[t_input];
if (bit != JC42_ALARM_CRIT_BIT && (data->config & JC42_CFG_CRIT_ONLY))
val = 0;
return sprintf(buf, "%u\n", (val >> bit) & 1);
}
static DEVICE_ATTR(temp1_input, S_IRUGO,
show_temp_input, NULL);
static DEVICE_ATTR(temp1_crit, S_IRUGO,
show_temp_crit, set_temp_crit);
static DEVICE_ATTR(temp1_min, S_IRUGO,
show_temp_min, set_temp_min);
static DEVICE_ATTR(temp1_max, S_IRUGO,
show_temp_max, set_temp_max);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, set_temp, t_crit);
static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, set_temp, t_min);
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, set_temp, t_max);
static DEVICE_ATTR(temp1_crit_hyst, S_IRUGO,
show_temp_crit_hyst, set_temp_crit_hyst);
static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
show_temp_max_hyst, NULL);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_hyst,
set_temp_crit_hyst, t_crit);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_CRIT_BIT);
......@@ -412,12 +371,12 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_MAX_BIT);
static struct attribute *jc42_attributes[] = {
&dev_attr_temp1_input.attr,
&dev_attr_temp1_crit.attr,
&dev_attr_temp1_min.attr,
&dev_attr_temp1_max.attr,
&dev_attr_temp1_crit_hyst.attr,
&dev_attr_temp1_max_hyst.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
......@@ -432,12 +391,12 @@ static umode_t jc42_attribute_mode(struct kobject *kobj,
unsigned int config = data->config;
bool readonly;
if (attr == &dev_attr_temp1_crit.attr)
if (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr)
readonly = config & JC42_CFG_TCRIT_LOCK;
else if (attr == &dev_attr_temp1_min.attr ||
attr == &dev_attr_temp1_max.attr)
else if (attr == &sensor_dev_attr_temp1_min.dev_attr.attr ||
attr == &sensor_dev_attr_temp1_max.dev_attr.attr)
readonly = config & JC42_CFG_EVENT_LOCK;
else if (attr == &dev_attr_temp1_crit_hyst.attr)
else if (attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr)
readonly = config & (JC42_CFG_EVENT_LOCK | JC42_CFG_TCRIT_LOCK);
else
readonly = true;
......@@ -537,52 +496,56 @@ static int jc42_remove(struct i2c_client *client)
return 0;
}
static struct jc42_data *jc42_update_device(struct device *dev)
#ifdef CONFIG_PM
static int jc42_suspend(struct device *dev)
{
struct jc42_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct jc42_data *ret = data;
int val;
mutex_lock(&data->update_lock);
data->config |= JC42_CFG_SHUTDOWN;
i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
data->config);
return 0;
}
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP);
if (val < 0) {
ret = ERR_PTR(val);
goto abort;
}
data->temp_input = val;
static int jc42_resume(struct device *dev)
{
struct jc42_data *data = dev_get_drvdata(dev);
val = i2c_smbus_read_word_swapped(client,
JC42_REG_TEMP_CRITICAL);
if (val < 0) {
ret = ERR_PTR(val);
goto abort;
}
data->temp_crit = val;
data->config &= ~JC42_CFG_SHUTDOWN;
i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
data->config);
return 0;
}
val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_LOWER);
if (val < 0) {
ret = ERR_PTR(val);
goto abort;
}
data->temp_min = val;
static const struct dev_pm_ops jc42_dev_pm_ops = {
.suspend = jc42_suspend,
.resume = jc42_resume,
};
val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_UPPER);
if (val < 0) {
ret = ERR_PTR(val);
goto abort;
}
data->temp_max = val;
#define JC42_DEV_PM_OPS (&jc42_dev_pm_ops)
#else
#define JC42_DEV_PM_OPS NULL
#endif /* CONFIG_PM */
data->last_updated = jiffies;
data->valid = true;
}
abort:
mutex_unlock(&data->update_lock);
return ret;
}
static const struct i2c_device_id jc42_id[] = {
{ "jc42", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, jc42_id);
static struct i2c_driver jc42_driver = {
.class = I2C_CLASS_SPD,
.driver = {
.name = "jc42",
.pm = JC42_DEV_PM_OPS,
},
.probe = jc42_probe,
.remove = jc42_remove,
.id_table = jc42_id,
.detect = jc42_detect,
.address_list = normal_i2c,
};
module_i2c_driver(jc42_driver);
......
drivers/hwmon/lm70.c
View file @ f4562052
......@@ -47,7 +47,7 @@
#define LM70_CHIP_LM74 3 /* NS LM74 */
struct lm70 {
struct device *hwmon_dev;
struct spi_device *spi;
struct mutex lock;
unsigned int chip;
};
......@@ -56,11 +56,11 @@ struct lm70 {
static ssize_t lm70_sense_temp(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct spi_device *spi = to_spi_device(dev);
struct lm70 *p_lm70 = dev_get_drvdata(dev);
struct spi_device *spi = p_lm70->spi;
int status, val = 0;
u8 rxbuf[2];
s16 raw = 0;
struct lm70 *p_lm70 = spi_get_drvdata(spi);
if (mutex_lock_interruptible(&p_lm70->lock))
return -ERESTARTSYS;
......@@ -121,21 +121,20 @@ static ssize_t lm70_sense_temp(struct device *dev,
static DEVICE_ATTR(temp1_input, S_IRUGO, lm70_sense_temp, NULL);
static ssize_t lm70_show_name(struct device *dev, struct device_attribute
*devattr, char *buf)
{
return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
}
static struct attribute *lm70_attrs[] = {
&dev_attr_temp1_input.attr,
NULL
};
static DEVICE_ATTR(name, S_IRUGO, lm70_show_name, NULL);
ATTRIBUTE_GROUPS(lm70);
/*----------------------------------------------------------------------*/
static int lm70_probe(struct spi_device *spi)
{
int chip = spi_get_device_id(spi)->driver_data;
struct device *hwmon_dev;
struct lm70 *p_lm70;
int status;
/* signaling is SPI_MODE_0 */
if (spi->mode & (SPI_CPOL | SPI_CPHA))
......@@ -149,46 +148,14 @@ static int lm70_probe(struct spi_device *spi)
mutex_init(&p_lm70->lock);
p_lm70->chip = chip;
p_lm70->spi = spi;
spi_set_drvdata(spi, p_lm70);
status = device_create_file(&spi->dev, &dev_attr_temp1_input);
if (status)
goto out_dev_create_temp_file_failed;
status = device_create_file(&spi->dev, &dev_attr_name);
if (status)
goto out_dev_create_file_failed;
/* sysfs hook */
p_lm70->hwmon_dev = hwmon_device_register(&spi->dev);
if (IS_ERR(p_lm70->hwmon_dev)) {
dev_dbg(&spi->dev, "hwmon_device_register failed.\n");
status = PTR_ERR(p_lm70->hwmon_dev);
goto out_dev_reg_failed;
}
return 0;
out_dev_reg_failed:
device_remove_file(&spi->dev, &dev_attr_name);
out_dev_create_file_failed:
device_remove_file(&spi->dev, &dev_attr_temp1_input);
out_dev_create_temp_file_failed:
return status;
hwmon_dev = devm_hwmon_device_register_with_groups(&spi->dev,
spi->modalias,
p_lm70, lm70_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static int lm70_remove(struct spi_device *spi)
{
struct lm70 *p_lm70 = spi_get_drvdata(spi);
hwmon_device_unregister(p_lm70->hwmon_dev);
device_remove_file(&spi->dev, &dev_attr_temp1_input);
device_remove_file(&spi->dev, &dev_attr_name);
return 0;
}
static const struct spi_device_id lm70_ids[] = {
{ "lm70", LM70_CHIP_LM70 },
{ "tmp121", LM70_CHIP_TMP121 },
......@@ -205,7 +172,6 @@ static struct spi_driver lm70_driver = {
},
.id_table = lm70_ids,
.probe = lm70_probe,
.remove = lm70_remove,
};
module_spi_driver(lm70_driver);
......
drivers/hwmon/lm75.c
View file @ f4562052
......@@ -72,6 +72,7 @@ static const u8 LM75_REG_TEMP[3] = {
/* Each client has this additional data */
struct lm75_data {
struct i2c_client *client;
struct device *hwmon_dev;
struct thermal_zone_device *tz;
struct mutex update_lock;
......@@ -130,8 +131,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct i2c_client *client = to_i2c_client(dev);
struct lm75_data *data = i2c_get_clientdata(client);
struct lm75_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long temp;
int error;
......@@ -165,17 +166,14 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
show_temp, set_temp, 2);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
static struct attribute *lm75_attributes[] = {
static struct attribute *lm75_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
NULL
};
static const struct attribute_group lm75_group = {
.attrs = lm75_attributes,
};
ATTRIBUTE_GROUPS(lm75);
/*-----------------------------------------------------------------------*/
......@@ -184,6 +182,7 @@ static const struct attribute_group lm75_group = {
static int
lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct lm75_data *data;
int status;
u8 set_mask, clr_mask;
......@@ -194,10 +193,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
return -EIO;
data = devm_kzalloc(&client->dev, sizeof(struct lm75_data), GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->client = client;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
......@@ -269,7 +269,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* configure as specified */
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(&client->dev, "Can't read config? %d\n", status);
dev_dbg(dev, "Can't read config? %d\n", status);
return status;
}
data->orig_conf = status;
......@@ -277,43 +277,32 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
new |= set_mask;
if (status != new)
lm75_write_value(client, LM75_REG_CONF, new);
dev_dbg(&client->dev, "Config %02x\n", new);
/* Register sysfs hooks */
status = sysfs_create_group(&client->dev.kobj, &lm75_group);
if (status)
return status;
dev_dbg(dev, "Config %02x\n", new);
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
status = PTR_ERR(data->hwmon_dev);
goto exit_remove;
}
data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
data, lm75_groups);
if (IS_ERR(data->hwmon_dev))
return PTR_ERR(data->hwmon_dev);
data->tz = thermal_zone_of_sensor_register(&client->dev,
data->tz = thermal_zone_of_sensor_register(data->hwmon_dev,
0,
&client->dev,
data->hwmon_dev,
lm75_read_temp, NULL);
if (IS_ERR(data->tz))
data->tz = NULL;
dev_info(&client->dev, "%s: sensor '%s'\n",
dev_info(dev, "%s: sensor '%s'\n",
dev_name(data->hwmon_dev), client->name);
return 0;
exit_remove:
sysfs_remove_group(&client->dev.kobj, &lm75_group);
return status;
}
static int lm75_remove(struct i2c_client *client)
{
struct lm75_data *data = i2c_get_clientdata(client);
thermal_zone_of_sensor_unregister(&client->dev, data->tz);
thermal_zone_of_sensor_unregister(data->hwmon_dev, data->tz);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &lm75_group);
lm75_write_value(client, LM75_REG_CONF, data->orig_conf);
return 0;
}
......@@ -507,8 +496,8 @@ static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
static struct lm75_data *lm75_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm75_data *data = i2c_get_clientdata(client);
struct lm75_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct lm75_data *ret = data;
mutex_lock(&data->update_lock);
......
drivers/hwmon/lm77.c
View file @ f4562052
......@@ -19,10 +19,6 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
......@@ -47,50 +43,33 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
#define LM77_REG_TEMP_MIN 0x04
#define LM77_REG_TEMP_MAX 0x05
enum temp_index {
t_input = 0,
t_crit,
t_min,
t_max,
t_hyst,
t_num_temp
};
static const u8 temp_regs[t_num_temp] = {
[t_input] = LM77_REG_TEMP,
[t_min] = LM77_REG_TEMP_MIN,
[t_max] = LM77_REG_TEMP_MAX,
[t_crit] = LM77_REG_TEMP_CRIT,
[t_hyst] = LM77_REG_TEMP_HYST,
};
/* Each client has this additional data */
struct lm77_data {
struct device *hwmon_dev;
struct i2c_client *client;
struct mutex update_lock;
char valid;
unsigned long last_updated; /* In jiffies */
int temp_input; /* Temperatures */
int temp_crit;
int temp_min;
int temp_max;
int temp_hyst;
int temp[t_num_temp]; /* index using temp_index */
u8 alarms;
};
static int lm77_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info);
static void lm77_init_client(struct i2c_client *client);
static int lm77_remove(struct i2c_client *client);
static u16 lm77_read_value(struct i2c_client *client, u8 reg);
static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value);
static struct lm77_data *lm77_update_device(struct device *dev);
static const struct i2c_device_id lm77_id[] = {
{ "lm77", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm77_id);
/* This is the driver that will be inserted */
static struct i2c_driver lm77_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm77",
},
.probe = lm77_probe,
.remove = lm77_remove,
.id_table = lm77_id,
.detect = lm77_detect,
.address_list = normal_i2c,
};
/* straight from the datasheet */
#define LM77_TEMP_MIN (-55000)
#define LM77_TEMP_MAX 125000
......@@ -110,97 +89,109 @@ static inline int LM77_TEMP_FROM_REG(s16 reg)
return (reg / 8) * 500;
}
/* sysfs stuff */
/* read routines for temperature limits */
#define show(value) \
static ssize_t show_##value(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct lm77_data *data = lm77_update_device(dev); \
return sprintf(buf, "%d\n", data->value); \
/*
* All registers are word-sized, except for the configuration register.
* The LM77 uses the high-byte first convention.
*/
static u16 lm77_read_value(struct i2c_client *client, u8 reg)
{
if (reg == LM77_REG_CONF)
return i2c_smbus_read_byte_data(client, reg);
else
return i2c_smbus_read_word_swapped(client, reg);
}
show(temp_input);
show(temp_crit);
show(temp_min);
show(temp_max);
static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
{
if (reg == LM77_REG_CONF)
return i2c_smbus_write_byte_data(client, reg, value);
else
return i2c_smbus_write_word_swapped(client, reg, value);
}
/* read routines for hysteresis values */
static ssize_t show_temp_crit_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static struct lm77_data *lm77_update_device(struct device *dev)
{
struct lm77_data *data = lm77_update_device(dev);
return sprintf(buf, "%d\n", data->temp_crit - data->temp_hyst);
struct lm77_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int i;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
dev_dbg(&client->dev, "Starting lm77 update\n");
for (i = 0; i < t_num_temp; i++) {
data->temp[i] =
LM77_TEMP_FROM_REG(lm77_read_value(client,
temp_regs[i]));
}
data->alarms =
lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
static ssize_t show_temp_min_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
/* sysfs stuff */
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm77_data *data = lm77_update_device(dev);
return sprintf(buf, "%d\n", data->temp_min + data->temp_hyst);
return sprintf(buf, "%d\n", data->temp[attr->index]);
}
static ssize_t show_temp_max_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t show_temp_hyst(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm77_data *data = lm77_update_device(dev);
return sprintf(buf, "%d\n", data->temp_max - data->temp_hyst);
}
int nr = attr->index;
int temp;
/* write routines */
#define set(value, reg) \
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct lm77_data *data = i2c_get_clientdata(client); \
long val; \
int err = kstrtol(buf, 10, &val); \
if (err) \
return err; \
\
mutex_lock(&data->update_lock); \
data->value = val; \
lm77_write_value(client, reg, LM77_TEMP_TO_REG(data->value)); \
mutex_unlock(&data->update_lock); \
return count; \
}
temp = nr == t_min ? data->temp[nr] + data->temp[t_hyst] :
data->temp[nr] - data->temp[t_hyst];
set(temp_min, LM77_REG_TEMP_MIN);
set(temp_max, LM77_REG_TEMP_MAX);
return sprintf(buf, "%d\n", temp);
}
/*
* hysteresis is stored as a relative value on the chip, so it has to be
* converted first
*/
static ssize_t set_temp_crit_hyst(struct device *dev,
struct device_attribute *attr,
static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm77_data *data = i2c_get_clientdata(client);
unsigned long val;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm77_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long val;
int err;
err = kstrtoul(buf, 10, &val);
err = kstrtol(buf, 10, &val);
if (err)
return err;
mutex_lock(&data->update_lock);
data->temp_hyst = data->temp_crit - val;
lm77_write_value(client, LM77_REG_TEMP_HYST,
LM77_TEMP_TO_REG(data->temp_hyst));
data->temp[nr] = val;
lm77_write_value(client, temp_regs[nr], LM77_TEMP_TO_REG(val));
mutex_unlock(&data->update_lock);
return count;
}
/* preserve hysteresis when setting T_crit */
static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
/*
* hysteresis is stored as a relative value on the chip, so it has to be
* converted first.
*/
static ssize_t set_temp_hyst(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm77_data *data = i2c_get_clientdata(client);
int oldcrithyst;
struct lm77_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
unsigned long val;
int err;
......@@ -209,13 +200,9 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
return err;
mutex_lock(&data->update_lock);
oldcrithyst = data->temp_crit - data->temp_hyst;
data->temp_crit = val;
data->temp_hyst = data->temp_crit - oldcrithyst;
lm77_write_value(client, LM77_REG_TEMP_CRIT,
LM77_TEMP_TO_REG(data->temp_crit));
data->temp[t_hyst] = data->temp[t_crit] - val;
lm77_write_value(client, LM77_REG_TEMP_HYST,
LM77_TEMP_TO_REG(data->temp_hyst));
LM77_TEMP_TO_REG(data->temp[t_hyst]));
mutex_unlock(&data->update_lock);
return count;
}
......@@ -228,43 +215,37 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
}
static DEVICE_ATTR(temp1_input, S_IRUGO,
show_temp_input, NULL);
static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,
show_temp_crit, set_temp_crit);
static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
show_temp_min, set_temp_min);
static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
show_temp_max, set_temp_max);
static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,
show_temp_crit_hyst, set_temp_crit_hyst);
static DEVICE_ATTR(temp1_min_hyst, S_IRUGO,
show_temp_min_hyst, NULL);
static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
show_temp_max_hyst, NULL);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_crit);
static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_min);
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_max);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst,
set_temp_hyst, t_crit);
static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp_hyst, NULL, t_min);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
static struct attribute *lm77_attributes[] = {
&dev_attr_temp1_input.attr,
&dev_attr_temp1_crit.attr,
&dev_attr_temp1_min.attr,
&dev_attr_temp1_max.attr,
&dev_attr_temp1_crit_hyst.attr,
&dev_attr_temp1_min_hyst.attr,
&dev_attr_temp1_max_hyst.attr,
static struct attribute *lm77_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
NULL
};
static const struct attribute_group lm77_group = {
.attrs = lm77_attributes,
};
ATTRIBUTE_GROUPS(lm77);
/* Return 0 if detection is successful, -ENODEV otherwise */
static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info)
......@@ -337,111 +318,52 @@ static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info)
return 0;
}
static void lm77_init_client(struct i2c_client *client)
{
/* Initialize the LM77 chip - turn off shutdown mode */
int conf = lm77_read_value(client, LM77_REG_CONF);
if (conf & 1)
lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
}
static int lm77_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
struct lm77_data *data;
int err;
data = devm_kzalloc(dev, sizeof(struct lm77_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
data->client = client;
mutex_init(&data->update_lock);
/* Initialize the LM77 chip */
lm77_init_client(client);
/* Register sysfs hooks */
err = sysfs_create_group(&dev->kobj, &lm77_group);
if (err)
return err;
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove;
}
return 0;
exit_remove:
sysfs_remove_group(&dev->kobj, &lm77_group);
return err;
}
static int lm77_remove(struct i2c_client *client)
{
struct lm77_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &lm77_group);
return 0;
}
/*
* All registers are word-sized, except for the configuration register.
* The LM77 uses the high-byte first convention.
*/
static u16 lm77_read_value(struct i2c_client *client, u8 reg)
{
if (reg == LM77_REG_CONF)
return i2c_smbus_read_byte_data(client, reg);
else
return i2c_smbus_read_word_swapped(client, reg);
}
static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
{
if (reg == LM77_REG_CONF)
return i2c_smbus_write_byte_data(client, reg, value);
else
return i2c_smbus_write_word_swapped(client, reg, value);
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, lm77_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static void lm77_init_client(struct i2c_client *client)
{
/* Initialize the LM77 chip - turn off shutdown mode */
int conf = lm77_read_value(client, LM77_REG_CONF);
if (conf & 1)
lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
}
static struct lm77_data *lm77_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm77_data *data = i2c_get_clientdata(client);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
dev_dbg(&client->dev, "Starting lm77 update\n");
data->temp_input =
LM77_TEMP_FROM_REG(lm77_read_value(client,
LM77_REG_TEMP));
data->temp_hyst =
LM77_TEMP_FROM_REG(lm77_read_value(client,
LM77_REG_TEMP_HYST));
data->temp_crit =
LM77_TEMP_FROM_REG(lm77_read_value(client,
LM77_REG_TEMP_CRIT));
data->temp_min =
LM77_TEMP_FROM_REG(lm77_read_value(client,
LM77_REG_TEMP_MIN));
data->temp_max =
LM77_TEMP_FROM_REG(lm77_read_value(client,
LM77_REG_TEMP_MAX));
data->alarms =
lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
static const struct i2c_device_id lm77_id[] = {
{ "lm77", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm77_id);
return data;
}
/* This is the driver that will be inserted */
static struct i2c_driver lm77_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm77",
},
.probe = lm77_probe,
.id_table = lm77_id,
.detect = lm77_detect,
.address_list = normal_i2c,
};
module_i2c_driver(lm77_driver);
......
drivers/hwmon/lm80.c
View file @ f4562052
......@@ -86,26 +86,41 @@ static inline unsigned char FAN_TO_REG(unsigned rpm, unsigned div)
#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
(val) == 255 ? 0 : 1350000/((div) * (val)))
static inline long TEMP_FROM_REG(u16 temp)
{
long res;
#define TEMP_FROM_REG(reg) ((reg) * 125 / 32)
#define TEMP_TO_REG(temp) (DIV_ROUND_CLOSEST(clamp_val((temp), \
-128000, 127000), 1000) << 8)
temp >>= 4;
if (temp < 0x0800)
res = 625 * (long) temp;
else
res = ((long) temp - 0x01000) * 625;
#define DIV_FROM_REG(val) (1 << (val))
return res / 10;
}
enum temp_index {
t_input = 0,
t_hot_max,
t_hot_hyst,
t_os_max,
t_os_hyst,
t_num_temp
};
#define TEMP_LIMIT_FROM_REG(val) (((val) > 0x80 ? \
(val) - 0x100 : (val)) * 1000)
static const u8 temp_regs[t_num_temp] = {
[t_input] = LM80_REG_TEMP,
[t_hot_max] = LM80_REG_TEMP_HOT_MAX,
[t_hot_hyst] = LM80_REG_TEMP_HOT_HYST,
[t_os_max] = LM80_REG_TEMP_OS_MAX,
[t_os_hyst] = LM80_REG_TEMP_OS_HYST,
};
#define TEMP_LIMIT_TO_REG(val) clamp_val((val) < 0 ? \
((val) - 500) / 1000 : ((val) + 500) / 1000, 0, 255)
enum in_index {
i_input = 0,
i_max,
i_min,
i_num_in
};
#define DIV_FROM_REG(val) (1 << (val))
enum fan_index {
f_input,
f_min,
f_num_fan
};
/*
* Client data (each client gets its own)
......@@ -118,106 +133,187 @@ struct lm80_data {
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
u8 in[7]; /* Register value */
u8 in_max[7]; /* Register value */
u8 in_min[7]; /* Register value */
u8 fan[2]; /* Register value */
u8 fan_min[2]; /* Register value */
u8 in[i_num_in][7]; /* Register value, 1st index is enum in_index */
u8 fan[f_num_fan][2]; /* Register value, 1st index enum fan_index */
u8 fan_div[2]; /* Register encoding, shifted right */
u16 temp; /* Register values, shifted right */
u8 temp_hot_max; /* Register value */
u8 temp_hot_hyst; /* Register value */
u8 temp_os_max; /* Register value */
u8 temp_os_hyst; /* Register value */
s16 temp[t_num_temp]; /* Register values, normalized to 16 bit */
u16 alarms; /* Register encoding, combined */
};
/*
* Functions declaration
*/
static int lm80_read_value(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
}
static int lm80_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int lm80_detect(struct i2c_client *client, struct i2c_board_info *info);
static void lm80_init_client(struct i2c_client *client);
static struct lm80_data *lm80_update_device(struct device *dev);
static int lm80_read_value(struct i2c_client *client, u8 reg);
static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value);
static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value)
{
return i2c_smbus_write_byte_data(client, reg, value);
}
/*
* Driver data (common to all clients)
/* Called when we have found a new LM80 and after read errors */
static void lm80_init_client(struct i2c_client *client)
{
/*
* Reset all except Watchdog values and last conversion values
* This sets fan-divs to 2, among others. This makes most other
* initializations unnecessary
*/
lm80_write_value(client, LM80_REG_CONFIG, 0x80);
/* Set 11-bit temperature resolution */
lm80_write_value(client, LM80_REG_RES, 0x08);
static const struct i2c_device_id lm80_id[] = {
{ "lm80", 0 },
{ "lm96080", 1 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm80_id);
/* Start monitoring */
lm80_write_value(client, LM80_REG_CONFIG, 0x01);
}
static struct i2c_driver lm80_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm80",
},
.probe = lm80_probe,
.id_table = lm80_id,
.detect = lm80_detect,
.address_list = normal_i2c,
};
static struct lm80_data *lm80_update_device(struct device *dev)
{
struct lm80_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int i;
int rv;
int prev_rv;
struct lm80_data *ret = data;
mutex_lock(&data->update_lock);
if (data->error)
lm80_init_client(client);
if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
dev_dbg(dev, "Starting lm80 update\n");
for (i = 0; i <= 6; i++) {
rv = lm80_read_value(client, LM80_REG_IN(i));
if (rv < 0)
goto abort;
data->in[i_input][i] = rv;
rv = lm80_read_value(client, LM80_REG_IN_MIN(i));
if (rv < 0)
goto abort;
data->in[i_min][i] = rv;
rv = lm80_read_value(client, LM80_REG_IN_MAX(i));
if (rv < 0)
goto abort;
data->in[i_max][i] = rv;
}
rv = lm80_read_value(client, LM80_REG_FAN1);
if (rv < 0)
goto abort;
data->fan[f_input][0] = rv;
rv = lm80_read_value(client, LM80_REG_FAN_MIN(1));
if (rv < 0)
goto abort;
data->fan[f_min][0] = rv;
rv = lm80_read_value(client, LM80_REG_FAN2);
if (rv < 0)
goto abort;
data->fan[f_input][1] = rv;
rv = lm80_read_value(client, LM80_REG_FAN_MIN(2));
if (rv < 0)
goto abort;
data->fan[f_min][1] = rv;
prev_rv = rv = lm80_read_value(client, LM80_REG_TEMP);
if (rv < 0)
goto abort;
rv = lm80_read_value(client, LM80_REG_RES);
if (rv < 0)
goto abort;
data->temp[t_input] = (prev_rv << 8) | (rv & 0xf0);
for (i = t_input + 1; i < t_num_temp; i++) {
rv = lm80_read_value(client, temp_regs[i]);
if (rv < 0)
goto abort;
data->temp[i] = rv << 8;
}
rv = lm80_read_value(client, LM80_REG_FANDIV);
if (rv < 0)
goto abort;
data->fan_div[0] = (rv >> 2) & 0x03;
data->fan_div[1] = (rv >> 4) & 0x03;
prev_rv = rv = lm80_read_value(client, LM80_REG_ALARM1);
if (rv < 0)
goto abort;
rv = lm80_read_value(client, LM80_REG_ALARM2);
if (rv < 0)
goto abort;
data->alarms = prev_rv + (rv << 8);
data->last_updated = jiffies;
data->valid = 1;
data->error = 0;
}
goto done;
abort:
ret = ERR_PTR(rv);
data->valid = 0;
data->error = 1;
done:
mutex_unlock(&data->update_lock);
return ret;
}
/*
* Sysfs stuff
*/
#define show_in(suffix, value) \
static ssize_t show_in_##suffix(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
int nr = to_sensor_dev_attr(attr)->index; \
struct lm80_data *data = lm80_update_device(dev); \
if (IS_ERR(data)) \
return PTR_ERR(data); \
return sprintf(buf, "%d\n", IN_FROM_REG(data->value[nr])); \
static ssize_t show_in(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct lm80_data *data = lm80_update_device(dev);
int index = to_sensor_dev_attr_2(attr)->index;
int nr = to_sensor_dev_attr_2(attr)->nr;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr][index]));
}
show_in(min, in_min)
show_in(max, in_max)
show_in(input, in)
#define set_in(suffix, value, reg) \
static ssize_t set_in_##suffix(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
{ \
int nr = to_sensor_dev_attr(attr)->index; \
struct lm80_data *data = dev_get_drvdata(dev); \
struct i2c_client *client = data->client; \
long val; \
int err = kstrtol(buf, 10, &val); \
if (err < 0) \
return err; \
\
mutex_lock(&data->update_lock);\
data->value[nr] = IN_TO_REG(val); \
lm80_write_value(client, reg(nr), data->value[nr]); \
mutex_unlock(&data->update_lock);\
return count; \
static ssize_t set_in(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct lm80_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int index = to_sensor_dev_attr_2(attr)->index;
int nr = to_sensor_dev_attr_2(attr)->nr;
long val;
u8 reg;
int err = kstrtol(buf, 10, &val);
if (err < 0)
return err;
reg = nr == i_min ? LM80_REG_IN_MIN(index) : LM80_REG_IN_MAX(index);
mutex_lock(&data->update_lock);
data->in[nr][index] = IN_TO_REG(val);
lm80_write_value(client, reg, data->in[nr][index]);
mutex_unlock(&data->update_lock);
return count;
}
set_in(min, in_min, LM80_REG_IN_MIN)
set_in(max, in_max, LM80_REG_IN_MAX)
#define show_fan(suffix, value) \
static ssize_t show_fan_##suffix(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
int nr = to_sensor_dev_attr(attr)->index; \
struct lm80_data *data = lm80_update_device(dev); \
if (IS_ERR(data)) \
return PTR_ERR(data); \
return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[nr], \
DIV_FROM_REG(data->fan_div[nr]))); \
static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
char *buf)
{
int index = to_sensor_dev_attr_2(attr)->index;
int nr = to_sensor_dev_attr_2(attr)->nr;
struct lm80_data *data = lm80_update_device(dev);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr][index],
DIV_FROM_REG(data->fan_div[index])));
}
show_fan(min, fan_min)
show_fan(input, fan)
static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
char *buf)
......@@ -232,7 +328,8 @@ static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(attr)->index;
int index = to_sensor_dev_attr_2(attr)->index;
int nr = to_sensor_dev_attr_2(attr)->nr;
struct lm80_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
unsigned long val;
......@@ -241,8 +338,10 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
return err;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
data->fan[nr][index] = FAN_TO_REG(val,
DIV_FROM_REG(data->fan_div[index]));
lm80_write_value(client, LM80_REG_FAN_MIN(index + 1),
data->fan[nr][index]);
mutex_unlock(&data->update_lock);
return count;
}
......@@ -267,7 +366,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
/* Save fan_min */
mutex_lock(&data->update_lock);
min = FAN_FROM_REG(data->fan_min[nr],
min = FAN_FROM_REG(data->fan[f_min][nr],
DIV_FROM_REG(data->fan_div[nr]));
switch (val) {
......@@ -291,62 +390,47 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
return -EINVAL;
}
reg = (lm80_read_value(client, LM80_REG_FANDIV) & ~(3 << (2 * (nr + 1))))
| (data->fan_div[nr] << (2 * (nr + 1)));
reg = (lm80_read_value(client, LM80_REG_FANDIV) &
~(3 << (2 * (nr + 1)))) | (data->fan_div[nr] << (2 * (nr + 1)));
lm80_write_value(client, LM80_REG_FANDIV, reg);
/* Restore fan_min */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
data->fan[f_min][nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1),
data->fan[f_min][nr]);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_temp_input1(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm80_data *data = lm80_update_device(dev);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp));
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
}
#define show_temp(suffix, value) \
static ssize_t show_temp_##suffix(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct lm80_data *data = lm80_update_device(dev); \
if (IS_ERR(data)) \
return PTR_ERR(data); \
return sprintf(buf, "%d\n", TEMP_LIMIT_FROM_REG(data->value)); \
}
show_temp(hot_max, temp_hot_max);
show_temp(hot_hyst, temp_hot_hyst);
show_temp(os_max, temp_os_max);
show_temp(os_hyst, temp_os_hyst);
#define set_temp(suffix, value, reg) \
static ssize_t set_temp_##suffix(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
{ \
struct lm80_data *data = dev_get_drvdata(dev); \
struct i2c_client *client = data->client; \
long val; \
int err = kstrtol(buf, 10, &val); \
if (err < 0) \
return err; \
\
mutex_lock(&data->update_lock); \
data->value = TEMP_LIMIT_TO_REG(val); \
lm80_write_value(client, reg, data->value); \
mutex_unlock(&data->update_lock); \
return count; \
static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm80_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long val;
int err = kstrtol(buf, 10, &val);
if (err < 0)
return err;
mutex_lock(&data->update_lock);
data->temp[nr] = TEMP_TO_REG(val);
lm80_write_value(client, temp_regs[nr], data->temp[nr] >> 8);
mutex_unlock(&data->update_lock);
return count;
}
set_temp(hot_max, temp_hot_max, LM80_REG_TEMP_HOT_MAX);
set_temp(hot_hyst, temp_hot_hyst, LM80_REG_TEMP_HOT_HYST);
set_temp(os_max, temp_os_max, LM80_REG_TEMP_OS_MAX);
set_temp(os_hyst, temp_os_hyst, LM80_REG_TEMP_OS_HYST);
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
char *buf)
......@@ -367,60 +451,60 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
}
static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 0);
static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 1);
static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 2);
static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 3);
static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 4);
static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 5);
static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
show_in_min, set_in_min, 6);
static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 0);
static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 1);
static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 2);
static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 3);
static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 4);
static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 5);
static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
show_in_max, set_in_max, 6);
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0);
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2);
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3);
static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4);
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5);
static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6);
static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
show_fan_min, set_fan_min, 0);
static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
show_fan_min, set_fan_min, 1);
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 0);
static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 1);
static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 2);
static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 3);
static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 4);
static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 5);
static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO,
show_in, set_in, i_min, 6);
static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 0);
static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 1);
static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 2);
static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 3);
static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 4);
static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 5);
static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO,
show_in, set_in, i_max, 6);
static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, i_input, 0);
static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, i_input, 1);
static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, i_input, 2);
static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, i_input, 3);
static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, i_input, 4);
static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, i_input, 5);
static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, i_input, 6);
static SENSOR_DEVICE_ATTR_2(fan1_min, S_IWUSR | S_IRUGO,
show_fan, set_fan_min, f_min, 0);
static SENSOR_DEVICE_ATTR_2(fan2_min, S_IWUSR | S_IRUGO,
show_fan, set_fan_min, f_min, 1);
static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, f_input, 0);
static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, f_input, 1);
static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
show_fan_div, set_fan_div, 0);
static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
show_fan_div, set_fan_div, 1);
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_hot_max,
set_temp_hot_max);
static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp_hot_hyst,
set_temp_hot_hyst);
static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_os_max,
set_temp_os_max);
static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_os_hyst,
set_temp_os_hyst);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp,
set_temp, t_hot_max);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp,
set_temp, t_hot_hyst);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp,
set_temp, t_os_max);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp,
set_temp, t_os_hyst);
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
......@@ -466,11 +550,11 @@ static struct attribute *lm80_attrs[] = {
&sensor_dev_attr_fan2_input.dev_attr.attr,
&sensor_dev_attr_fan1_div.dev_attr.attr,
&sensor_dev_attr_fan2_div.dev_attr.attr,
&dev_attr_temp1_input.attr,
&dev_attr_temp1_max.attr,
&dev_attr_temp1_max_hyst.attr,
&dev_attr_temp1_crit.attr,
&dev_attr_temp1_crit_hyst.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&dev_attr_alarms.attr,
&sensor_dev_attr_in0_alarm.dev_attr.attr,
&sensor_dev_attr_in1_alarm.dev_attr.attr,
......@@ -551,8 +635,8 @@ static int lm80_probe(struct i2c_client *client,
lm80_init_client(client);
/* A few vars need to be filled upon startup */
data->fan_min[0] = lm80_read_value(client, LM80_REG_FAN_MIN(1));
data->fan_min[1] = lm80_read_value(client, LM80_REG_FAN_MIN(2));
data->fan[f_min][0] = lm80_read_value(client, LM80_REG_FAN_MIN(1));
data->fan[f_min][1] = lm80_read_value(client, LM80_REG_FAN_MIN(2));
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, lm80_groups);
......@@ -560,143 +644,27 @@ static int lm80_probe(struct i2c_client *client,
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static int lm80_read_value(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
}
static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value)
{
return i2c_smbus_write_byte_data(client, reg, value);
}
/* Called when we have found a new LM80. */
static void lm80_init_client(struct i2c_client *client)
{
/*
* Reset all except Watchdog values and last conversion values
* This sets fan-divs to 2, among others. This makes most other
* initializations unnecessary
/*
* Driver data (common to all clients)
*/
lm80_write_value(client, LM80_REG_CONFIG, 0x80);
/* Set 11-bit temperature resolution */
lm80_write_value(client, LM80_REG_RES, 0x08);
/* Start monitoring */
lm80_write_value(client, LM80_REG_CONFIG, 0x01);
}
static struct lm80_data *lm80_update_device(struct device *dev)
{
struct lm80_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int i;
int rv;
int prev_rv;
struct lm80_data *ret = data;
mutex_lock(&data->update_lock);
if (data->error)
lm80_init_client(client);
if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
dev_dbg(dev, "Starting lm80 update\n");
for (i = 0; i <= 6; i++) {
rv = lm80_read_value(client, LM80_REG_IN(i));
if (rv < 0)
goto abort;
data->in[i] = rv;
rv = lm80_read_value(client, LM80_REG_IN_MIN(i));
if (rv < 0)
goto abort;
data->in_min[i] = rv;
rv = lm80_read_value(client, LM80_REG_IN_MAX(i));
if (rv < 0)
goto abort;
data->in_max[i] = rv;
}
rv = lm80_read_value(client, LM80_REG_FAN1);
if (rv < 0)
goto abort;
data->fan[0] = rv;
rv = lm80_read_value(client, LM80_REG_FAN_MIN(1));
if (rv < 0)
goto abort;
data->fan_min[0] = rv;
rv = lm80_read_value(client, LM80_REG_FAN2);
if (rv < 0)
goto abort;
data->fan[1] = rv;
rv = lm80_read_value(client, LM80_REG_FAN_MIN(2));
if (rv < 0)
goto abort;
data->fan_min[1] = rv;
prev_rv = rv = lm80_read_value(client, LM80_REG_TEMP);
if (rv < 0)
goto abort;
rv = lm80_read_value(client, LM80_REG_RES);
if (rv < 0)
goto abort;
data->temp = (prev_rv << 8) | (rv & 0xf0);
rv = lm80_read_value(client, LM80_REG_TEMP_OS_MAX);
if (rv < 0)
goto abort;
data->temp_os_max = rv;
rv = lm80_read_value(client, LM80_REG_TEMP_OS_HYST);
if (rv < 0)
goto abort;
data->temp_os_hyst = rv;
rv = lm80_read_value(client, LM80_REG_TEMP_HOT_MAX);
if (rv < 0)
goto abort;
data->temp_hot_max = rv;
rv = lm80_read_value(client, LM80_REG_TEMP_HOT_HYST);
if (rv < 0)
goto abort;
data->temp_hot_hyst = rv;
rv = lm80_read_value(client, LM80_REG_FANDIV);
if (rv < 0)
goto abort;
data->fan_div[0] = (rv >> 2) & 0x03;
data->fan_div[1] = (rv >> 4) & 0x03;
prev_rv = rv = lm80_read_value(client, LM80_REG_ALARM1);
if (rv < 0)
goto abort;
rv = lm80_read_value(client, LM80_REG_ALARM2);
if (rv < 0)
goto abort;
data->alarms = prev_rv + (rv << 8);
data->last_updated = jiffies;
data->valid = 1;
data->error = 0;
}
goto done;
abort:
ret = ERR_PTR(rv);
data->valid = 0;
data->error = 1;
done:
mutex_unlock(&data->update_lock);
static const struct i2c_device_id lm80_id[] = {
{ "lm80", 0 },
{ "lm96080", 1 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm80_id);
return ret;
}
static struct i2c_driver lm80_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm80",
},
.probe = lm80_probe,
.id_table = lm80_id,
.detect = lm80_detect,
.address_list = normal_i2c,
};
module_i2c_driver(lm80_driver);
......
drivers/hwmon/lm83.c
View file @ f4562052
......@@ -25,10 +25,6 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
......@@ -110,46 +106,13 @@ static const u8 LM83_REG_W_HIGH[] = {
LM83_REG_W_TCRIT,
};
/*
* Functions declaration
*/
static int lm83_detect(struct i2c_client *new_client,
struct i2c_board_info *info);
static int lm83_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int lm83_remove(struct i2c_client *client);
static struct lm83_data *lm83_update_device(struct device *dev);
/*
* Driver data (common to all clients)
*/
static const struct i2c_device_id lm83_id[] = {
{ "lm83", lm83 },
{ "lm82", lm82 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm83_id);
static struct i2c_driver lm83_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm83",
},
.probe = lm83_probe,
.remove = lm83_remove,
.id_table = lm83_id,
.detect = lm83_detect,
.address_list = normal_i2c,
};
/*
* Client data (each client gets its own)
*/
struct lm83_data {
struct device *hwmon_dev;
struct i2c_client *client;
const struct attribute_group *groups[3];
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
......@@ -161,6 +124,36 @@ struct lm83_data {
u16 alarms; /* bitvector, combined */
};
static struct lm83_data *lm83_update_device(struct device *dev)
{
struct lm83_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
int nr;
dev_dbg(&client->dev, "Updating lm83 data.\n");
for (nr = 0; nr < 9; nr++) {
data->temp[nr] =
i2c_smbus_read_byte_data(client,
LM83_REG_R_TEMP[nr]);
}
data->alarms =
i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1)
+ (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2)
<< 8);
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
/*
* Sysfs stuff
*/
......@@ -177,8 +170,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct lm83_data *data = i2c_get_clientdata(client);
struct lm83_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int nr = attr->index;
int err;
......@@ -340,15 +333,15 @@ static int lm83_detect(struct i2c_client *new_client,
static int lm83_probe(struct i2c_client *new_client,
const struct i2c_device_id *id)
{
struct device *hwmon_dev;
struct lm83_data *data;
int err;
data = devm_kzalloc(&new_client->dev, sizeof(struct lm83_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(new_client, data);
data->client = new_client;
mutex_init(&data->update_lock);
/*
......@@ -357,72 +350,37 @@ static int lm83_probe(struct i2c_client *new_client,
* at the same register as the LM83 temp3 entry - so we
* declare 1 and 3 common, and then 2 and 4 only for the LM83.
*/
err = sysfs_create_group(&new_client->dev.kobj, &lm83_group);
if (err)
return err;
if (id->driver_data == lm83) {
err = sysfs_create_group(&new_client->dev.kobj,
&lm83_group_opt);
if (err)
goto exit_remove_files;
}
data->hwmon_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
}
return 0;
exit_remove_files:
sysfs_remove_group(&new_client->dev.kobj, &lm83_group);
sysfs_remove_group(&new_client->dev.kobj, &lm83_group_opt);
return err;
}
static int lm83_remove(struct i2c_client *client)
{
struct lm83_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &lm83_group);
sysfs_remove_group(&client->dev.kobj, &lm83_group_opt);
return 0;
data->groups[0] = &lm83_group;
if (id->driver_data == lm83)
data->groups[1] = &lm83_group_opt;
hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev,
new_client->name,
data, data->groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static struct lm83_data *lm83_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm83_data *data = i2c_get_clientdata(client);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
int nr;
dev_dbg(&client->dev, "Updating lm83 data.\n");
for (nr = 0; nr < 9; nr++) {
data->temp[nr] =
i2c_smbus_read_byte_data(client,
LM83_REG_R_TEMP[nr]);
}
data->alarms =
i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1)
+ (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2)
<< 8);
data->last_updated = jiffies;
data->valid = 1;
}
/*
* Driver data (common to all clients)
*/
mutex_unlock(&data->update_lock);
static const struct i2c_device_id lm83_id[] = {
{ "lm83", lm83 },
{ "lm82", lm82 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm83_id);
return data;
}
static struct i2c_driver lm83_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm83",
},
.probe = lm83_probe,
.id_table = lm83_id,
.detect = lm83_detect,
.address_list = normal_i2c,
};
module_i2c_driver(lm83_driver);
......
drivers/hwmon/lm92.c
View file @ f4562052
......@@ -34,10 +34,6 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
......@@ -93,46 +89,53 @@ static inline u8 ALARMS_FROM_REG(s16 reg)
return reg & 0x0007;
}
/* Driver data (common to all clients) */
static struct i2c_driver lm92_driver;
enum temp_index {
t_input,
t_crit,
t_min,
t_max,
t_hyst,
t_num_regs
};
static const u8 regs[t_num_regs] = {
[t_input] = LM92_REG_TEMP,
[t_crit] = LM92_REG_TEMP_CRIT,
[t_min] = LM92_REG_TEMP_LOW,
[t_max] = LM92_REG_TEMP_HIGH,
[t_hyst] = LM92_REG_TEMP_HYST,
};
/* Client data (each client gets its own) */
struct lm92_data {
struct device *hwmon_dev;
struct i2c_client *client;
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
/* registers values */
s16 temp1_input, temp1_crit, temp1_min, temp1_max, temp1_hyst;
s16 temp[t_num_regs]; /* index with enum temp_index */
};
/*
* Sysfs attributes and callback functions
*/
static struct lm92_data *lm92_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm92_data *data = i2c_get_clientdata(client);
struct lm92_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int i;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ)
|| !data->valid) {
dev_dbg(&client->dev, "Updating lm92 data\n");
data->temp1_input = i2c_smbus_read_word_swapped(client,
LM92_REG_TEMP);
data->temp1_hyst = i2c_smbus_read_word_swapped(client,
LM92_REG_TEMP_HYST);
data->temp1_crit = i2c_smbus_read_word_swapped(client,
LM92_REG_TEMP_CRIT);
data->temp1_min = i2c_smbus_read_word_swapped(client,
LM92_REG_TEMP_LOW);
data->temp1_max = i2c_smbus_read_word_swapped(client,
LM92_REG_TEMP_HIGH);
for (i = 0; i < t_num_regs; i++) {
data->temp[i] =
i2c_smbus_read_word_swapped(client, regs[i]);
}
data->last_updated = jiffies;
data->valid = 1;
}
......@@ -142,68 +145,60 @@ static struct lm92_data *lm92_update_device(struct device *dev)
return data;
}
#define show_temp(value) \
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct lm92_data *data = lm92_update_device(dev); \
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
}
show_temp(temp1_input);
show_temp(temp1_crit);
show_temp(temp1_min);
show_temp(temp1_max);
#define set_temp(value, reg) \
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \
const char *buf, \
size_t count) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct lm92_data *data = i2c_get_clientdata(client); \
long val; \
int err = kstrtol(buf, 10, &val); \
if (err) \
return err; \
\
mutex_lock(&data->update_lock); \
data->value = TEMP_TO_REG(val); \
i2c_smbus_write_word_swapped(client, reg, data->value); \
mutex_unlock(&data->update_lock); \
return count; \
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm92_data *data = lm92_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
}
set_temp(temp1_crit, LM92_REG_TEMP_CRIT);
set_temp(temp1_min, LM92_REG_TEMP_LOW);
set_temp(temp1_max, LM92_REG_TEMP_HIGH);
static ssize_t show_temp1_crit_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct lm92_data *data = lm92_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_crit)
- TEMP_FROM_REG(data->temp1_hyst));
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm92_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long val;
int err;
err = kstrtol(buf, 10, &val);
if (err)
return err;
mutex_lock(&data->update_lock);
data->temp[nr] = TEMP_TO_REG(val);
i2c_smbus_write_word_swapped(client, regs[nr], data->temp[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_temp1_max_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t show_temp_hyst(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm92_data *data = lm92_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_max)
- TEMP_FROM_REG(data->temp1_hyst));
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])
- TEMP_FROM_REG(data->temp[t_hyst]));
}
static ssize_t show_temp1_min_hyst(struct device *dev,
static ssize_t show_temp_min_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm92_data *data = lm92_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_min)
+ TEMP_FROM_REG(data->temp1_hyst));
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[t_min])
+ TEMP_FROM_REG(data->temp[t_hyst]));
}
static ssize_t set_temp1_crit_hyst(struct device *dev,
struct device_attribute *attr,
static ssize_t set_temp_hyst(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm92_data *data = i2c_get_clientdata(client);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm92_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err;
......@@ -212,9 +207,9 @@ static ssize_t set_temp1_crit_hyst(struct device *dev,
return err;
mutex_lock(&data->update_lock);
data->temp1_hyst = TEMP_FROM_REG(data->temp1_crit) - val;
data->temp[t_hyst] = TEMP_FROM_REG(data->temp[attr->index]) - val;
i2c_smbus_write_word_swapped(client, LM92_REG_TEMP_HYST,
TEMP_TO_REG(data->temp1_hyst));
TEMP_TO_REG(data->temp[t_hyst]));
mutex_unlock(&data->update_lock);
return count;
}
......@@ -223,7 +218,7 @@ static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct lm92_data *data = lm92_update_device(dev);
return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp1_input));
return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp[t_input]));
}
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
......@@ -231,26 +226,25 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
{
int bitnr = to_sensor_dev_attr(attr)->index;
struct lm92_data *data = lm92_update_device(dev);
return sprintf(buf, "%d\n", (data->temp1_input >> bitnr) & 1);
return sprintf(buf, "%d\n", (data->temp[t_input] >> bitnr) & 1);
}
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1_input, NULL);
static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp1_crit,
set_temp1_crit);
static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp1_crit_hyst,
set_temp1_crit_hyst);
static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp1_min,
set_temp1_min);
static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp1_min_hyst, NULL);
static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp1_max,
set_temp1_max);
static DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp1_max_hyst, NULL);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_crit);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst,
set_temp_hyst, t_crit);
static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_min);
static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp_min_hyst, NULL);
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_max);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
/*
* Detection and registration
*/
......@@ -322,24 +316,21 @@ static int max6635_check(struct i2c_client *client)
return 1;
}
static struct attribute *lm92_attributes[] = {
&dev_attr_temp1_input.attr,
&dev_attr_temp1_crit.attr,
&dev_attr_temp1_crit_hyst.attr,
&dev_attr_temp1_min.attr,
static struct attribute *lm92_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&dev_attr_temp1_min_hyst.attr,
&dev_attr_temp1_max.attr,
&dev_attr_temp1_max_hyst.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&dev_attr_alarms.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
NULL
};
static const struct attribute_group lm92_group = {
.attrs = lm92_attributes,
};
ATTRIBUTE_GROUPS(lm92);
/* Return 0 if detection is successful, -ENODEV otherwise */
static int lm92_detect(struct i2c_client *new_client,
......@@ -371,46 +362,24 @@ static int lm92_detect(struct i2c_client *new_client,
static int lm92_probe(struct i2c_client *new_client,
const struct i2c_device_id *id)
{
struct device *hwmon_dev;
struct lm92_data *data;
int err;
data = devm_kzalloc(&new_client->dev, sizeof(struct lm92_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(new_client, data);
data->client = new_client;
mutex_init(&data->update_lock);
/* Initialize the chipset */
lm92_init_client(new_client);
/* Register sysfs hooks */
err = sysfs_create_group(&new_client->dev.kobj, &lm92_group);
if (err)
return err;
data->hwmon_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove;
}
return 0;
exit_remove:
sysfs_remove_group(&new_client->dev.kobj, &lm92_group);
return err;
}
static int lm92_remove(struct i2c_client *client)
{
struct lm92_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &lm92_group);
return 0;
hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev,
new_client->name,
data, lm92_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
......@@ -431,7 +400,6 @@ static struct i2c_driver lm92_driver = {
.name = "lm92",
},
.probe = lm92_probe,
.remove = lm92_remove,
.id_table = lm92_id,
.detect = lm92_detect,
.address_list = normal_i2c,
......
drivers/hwmon/lm93.c
View file @ f4562052
......@@ -2747,10 +2747,8 @@ static int lm93_probe(struct i2c_client *client,
}
data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL);
if (!data) {
dev_dbg(&client->dev, "out of memory!\n");
if (!data)
return -ENOMEM;
}
i2c_set_clientdata(client, data);
/* housekeeping */
......
drivers/hwmon/ltc2945.c
View file @ f4562052
/*
/*
* Driver for Linear Technology LTC2945 I2C Power Monitor
*
* Copyright (c) 2014 Guenter Roeck
......
drivers/hwmon/max1111.c
View file @ f4562052
......@@ -192,10 +192,8 @@ static int max1111_probe(struct spi_device *spi)
return err;
data = devm_kzalloc(&spi->dev, sizeof(struct max1111_data), GFP_KERNEL);
if (data == NULL) {
dev_err(&spi->dev, "failed to allocate memory\n");
if (data == NULL)
return -ENOMEM;
}
switch (chip) {
case max1110:
......
drivers/hwmon/max1619.c
View file @ f4562052
......@@ -19,13 +19,8 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
......@@ -76,38 +71,14 @@ static int temp_to_reg(int val)
return (val < 0 ? val+0x100*1000 : val) / 1000;
}
/*
* Functions declaration
*/
static int max1619_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int max1619_detect(struct i2c_client *client,
struct i2c_board_info *info);
static void max1619_init_client(struct i2c_client *client);
static int max1619_remove(struct i2c_client *client);
static struct max1619_data *max1619_update_device(struct device *dev);
/*
* Driver data (common to all clients)
*/
static const struct i2c_device_id max1619_id[] = {
{ "max1619", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max1619_id);
static struct i2c_driver max1619_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "max1619",
},
.probe = max1619_probe,
.remove = max1619_remove,
.id_table = max1619_id,
.detect = max1619_detect,
.address_list = normal_i2c,
enum temp_index {
t_input1 = 0,
t_input2,
t_low2,
t_high2,
t_crit2,
t_hyst2,
t_num_regs
};
/*
......@@ -115,60 +86,92 @@ static struct i2c_driver max1619_driver = {
*/
struct max1619_data {
struct device *hwmon_dev;
struct i2c_client *client;
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
/* registers values */
u8 temp_input1; /* local */
u8 temp_input2, temp_low2, temp_high2; /* remote */
u8 temp_crit2;
u8 temp_hyst2;
u8 temp[t_num_regs]; /* index with enum temp_index */
u8 alarms;
};
static const u8 regs_read[t_num_regs] = {
[t_input1] = MAX1619_REG_R_LOCAL_TEMP,
[t_input2] = MAX1619_REG_R_REMOTE_TEMP,
[t_low2] = MAX1619_REG_R_REMOTE_LOW,
[t_high2] = MAX1619_REG_R_REMOTE_HIGH,
[t_crit2] = MAX1619_REG_R_REMOTE_CRIT,
[t_hyst2] = MAX1619_REG_R_TCRIT_HYST,
};
static const u8 regs_write[t_num_regs] = {
[t_low2] = MAX1619_REG_W_REMOTE_LOW,
[t_high2] = MAX1619_REG_W_REMOTE_HIGH,
[t_crit2] = MAX1619_REG_W_REMOTE_CRIT,
[t_hyst2] = MAX1619_REG_W_TCRIT_HYST,
};
static struct max1619_data *max1619_update_device(struct device *dev)
{
struct max1619_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int config, i;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
dev_dbg(&client->dev, "Updating max1619 data.\n");
for (i = 0; i < t_num_regs; i++)
data->temp[i] = i2c_smbus_read_byte_data(client,
regs_read[i]);
data->alarms = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_STATUS);
/* If OVERT polarity is low, reverse alarm bit */
config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
if (!(config & 0x20))
data->alarms ^= 0x02;
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
/*
* Sysfs stuff
*/
#define show_temp(value) \
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct max1619_data *data = max1619_update_device(dev); \
return sprintf(buf, "%d\n", temp_from_reg(data->value)); \
}
show_temp(temp_input1);
show_temp(temp_input2);
show_temp(temp_low2);
show_temp(temp_high2);
show_temp(temp_crit2);
show_temp(temp_hyst2);
#define set_temp2(value, reg) \
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \
const char *buf, \
size_t count) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct max1619_data *data = i2c_get_clientdata(client); \
long val; \
int err = kstrtol(buf, 10, &val); \
if (err) \
return err; \
\
mutex_lock(&data->update_lock); \
data->value = temp_to_reg(val); \
i2c_smbus_write_byte_data(client, reg, data->value); \
mutex_unlock(&data->update_lock); \
return count; \
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct max1619_data *data = max1619_update_device(dev);
return sprintf(buf, "%d\n", temp_from_reg(data->temp[attr->index]));
}
set_temp2(temp_low2, MAX1619_REG_W_REMOTE_LOW);
set_temp2(temp_high2, MAX1619_REG_W_REMOTE_HIGH);
set_temp2(temp_crit2, MAX1619_REG_W_REMOTE_CRIT);
set_temp2(temp_hyst2, MAX1619_REG_W_TCRIT_HYST);
static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct max1619_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err = kstrtol(buf, 10, &val);
if (err)
return err;
mutex_lock(&data->update_lock);
data->temp[attr->index] = temp_to_reg(val);
i2c_smbus_write_byte_data(client, regs_write[attr->index],
data->temp[attr->index]);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
char *buf)
......@@ -185,29 +188,30 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
}
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_low2,
set_temp_low2);
static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
set_temp_high2);
static DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit2,
set_temp_crit2);
static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst2,
set_temp_hyst2);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input1);
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, t_input2);
static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_low2);
static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_high2);
static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
t_crit2);
static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp,
set_temp, t_hyst2);
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
static struct attribute *max1619_attributes[] = {
&dev_attr_temp1_input.attr,
&dev_attr_temp2_input.attr,
&dev_attr_temp2_min.attr,
&dev_attr_temp2_max.attr,
&dev_attr_temp2_crit.attr,
&dev_attr_temp2_crit_hyst.attr,
static struct attribute *max1619_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
&dev_attr_alarms.attr,
&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
......@@ -216,14 +220,7 @@ static struct attribute *max1619_attributes[] = {
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
NULL
};
static const struct attribute_group max1619_group = {
.attrs = max1619_attributes,
};
/*
* Real code
*/
ATTRIBUTE_GROUPS(max1619);
/* Return 0 if detection is successful, -ENODEV otherwise */
static int max1619_detect(struct i2c_client *client,
......@@ -261,41 +258,6 @@ static int max1619_detect(struct i2c_client *client,
return 0;
}
static int max1619_probe(struct i2c_client *new_client,
const struct i2c_device_id *id)
{
struct max1619_data *data;
int err;
data = devm_kzalloc(&new_client->dev, sizeof(struct max1619_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(new_client, data);
mutex_init(&data->update_lock);
/* Initialize the MAX1619 chip */
max1619_init_client(new_client);
/* Register sysfs hooks */
err = sysfs_create_group(&new_client->dev.kobj, &max1619_group);
if (err)
return err;
data->hwmon_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
}
return 0;
exit_remove_files:
sysfs_remove_group(&new_client->dev.kobj, &max1619_group);
return err;
}
static void max1619_init_client(struct i2c_client *client)
{
u8 config;
......@@ -311,48 +273,46 @@ static void max1619_init_client(struct i2c_client *client)
config & 0xBF); /* run */
}
static int max1619_remove(struct i2c_client *client)
static int max1619_probe(struct i2c_client *new_client,
const struct i2c_device_id *id)
{
struct max1619_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &max1619_group);
return 0;
}
struct max1619_data *data;
struct device *hwmon_dev;
static struct max1619_data *max1619_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct max1619_data *data = i2c_get_clientdata(client);
data = devm_kzalloc(&new_client->dev, sizeof(struct max1619_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
mutex_lock(&data->update_lock);
data->client = new_client;
mutex_init(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
dev_dbg(&client->dev, "Updating max1619 data.\n");
data->temp_input1 = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_LOCAL_TEMP);
data->temp_input2 = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_REMOTE_TEMP);
data->temp_high2 = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_REMOTE_HIGH);
data->temp_low2 = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_REMOTE_LOW);
data->temp_crit2 = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_REMOTE_CRIT);
data->temp_hyst2 = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_TCRIT_HYST);
data->alarms = i2c_smbus_read_byte_data(client,
MAX1619_REG_R_STATUS);
/* Initialize the MAX1619 chip */
max1619_init_client(new_client);
data->last_updated = jiffies;
data->valid = 1;
}
hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev,
new_client->name,
data,
max1619_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
mutex_unlock(&data->update_lock);
static const struct i2c_device_id max1619_id[] = {
{ "max1619", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max1619_id);
return data;
}
static struct i2c_driver max1619_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "max1619",
},
.probe = max1619_probe,
.id_table = max1619_id,
.detect = max1619_detect,
.address_list = normal_i2c,
};
module_i2c_driver(max1619_driver);
......
drivers/hwmon/max197.c
View file @ f4562052
......@@ -275,10 +275,8 @@ static int max197_probe(struct platform_device *pdev)
}
data = devm_kzalloc(&pdev->dev, sizeof(struct max197_data), GFP_KERNEL);
if (!data) {
dev_err(&pdev->dev, "devm_kzalloc failed\n");
if (!data)
return -ENOMEM;
}
data->pdata = pdata;
mutex_init(&data->lock);
......
drivers/hwmon/nct6683.c 0 → 100644
View file @ f4562052
/*
* nct6683 - Driver for the hardware monitoring functionality of
* Nuvoton NCT6683D eSIO
*
* Copyright (C) 2013 Guenter Roeck <linux@roeck-us.net>
*
* Derived from nct6775 driver
* Copyright (C) 2012, 2013 Guenter Roeck <linux@roeck-us.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Supports the following chips:
*
* Chip #vin #fan #pwm #temp chip ID
* nct6683d 21(1) 16 8 32(1) 0xc730
*
* Notes:
* (1) Total number of vin and temp inputs is 32.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
enum kinds { nct6683 };
static bool force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Set to one to enable detection on non-Intel boards");
static const char * const nct6683_device_names[] = {
"nct6683",
};
static const char * const nct6683_chip_names[] = {
"NCT6683D",
};
#define DRVNAME "nct6683"
/*
* Super-I/O constants and functions
*/
#define NCT6683_LD_ACPI 0x0a
#define NCT6683_LD_HWM 0x0b
#define NCT6683_LD_VID 0x0d
#define SIO_REG_LDSEL 0x07 /* Logical device select */
#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
#define SIO_REG_ENABLE 0x30 /* Logical device enable */
#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
#define SIO_NCT6681_ID 0xb270 /* for later */
#define SIO_NCT6683_ID 0xc730
#define SIO_ID_MASK 0xFFF0
static inline void
superio_outb(int ioreg, int reg, int val)
{
outb(reg, ioreg);
outb(val, ioreg + 1);
}
static inline int
superio_inb(int ioreg, int reg)
{
outb(reg, ioreg);
return inb(ioreg + 1);
}
static inline void
superio_select(int ioreg, int ld)
{
outb(SIO_REG_LDSEL, ioreg);
outb(ld, ioreg + 1);
}
static inline int
superio_enter(int ioreg)
{
/*
* Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
*/
if (!request_muxed_region(ioreg, 2, DRVNAME))
return -EBUSY;
outb(0x87, ioreg);
outb(0x87, ioreg);
return 0;
}
static inline void
superio_exit(int ioreg)
{
outb(0xaa, ioreg);
outb(0x02, ioreg);
outb(0x02, ioreg + 1);
release_region(ioreg, 2);
}
/*
* ISA constants
*/
#define IOREGION_ALIGNMENT (~7)
#define IOREGION_OFFSET 4 /* Use EC port 1 */
#define IOREGION_LENGTH 4
#define EC_PAGE_REG 0
#define EC_INDEX_REG 1
#define EC_DATA_REG 2
#define EC_EVENT_REG 3
/* Common and NCT6683 specific data */
#define NCT6683_NUM_REG_MON 32
#define NCT6683_NUM_REG_FAN 16
#define NCT6683_NUM_REG_PWM 8
#define NCT6683_REG_MON(x) (0x100 + (x) * 2)
#define NCT6683_REG_FAN_RPM(x) (0x140 + (x) * 2)
#define NCT6683_REG_PWM(x) (0x160 + (x))
#define NCT6683_REG_MON_STS(x) (0x174 + (x))
#define NCT6683_REG_IDLE(x) (0x178 + (x))
#define NCT6683_REG_FAN_STS(x) (0x17c + (x))
#define NCT6683_REG_FAN_ERRSTS 0x17e
#define NCT6683_REG_FAN_INITSTS 0x17f
#define NCT6683_HWM_CFG 0x180
#define NCT6683_REG_MON_CFG(x) (0x1a0 + (x))
#define NCT6683_REG_FANIN_CFG(x) (0x1c0 + (x))
#define NCT6683_REG_FANOUT_CFG(x) (0x1d0 + (x))
#define NCT6683_REG_INTEL_TEMP_MAX(x) (0x901 + (x) * 16)
#define NCT6683_REG_INTEL_TEMP_CRIT(x) (0x90d + (x) * 16)
#define NCT6683_REG_TEMP_HYST(x) (0x330 + (x)) /* 8 bit */
#define NCT6683_REG_TEMP_MAX(x) (0x350 + (x)) /* 8 bit */
#define NCT6683_REG_MON_HIGH(x) (0x370 + (x) * 2) /* 8 bit */
#define NCT6683_REG_MON_LOW(x) (0x371 + (x) * 2) /* 8 bit */
#define NCT6683_REG_FAN_MIN(x) (0x3b8 + (x) * 2) /* 16 bit */
#define NCT6683_REG_CUSTOMER_ID 0x602
#define NCT6683_CUSTOMER_ID_INTEL 0x805
#define NCT6683_REG_BUILD_YEAR 0x604
#define NCT6683_REG_BUILD_MONTH 0x605
#define NCT6683_REG_BUILD_DAY 0x606
#define NCT6683_REG_SERIAL 0x607
#define NCT6683_REG_VERSION_HI 0x608
#define NCT6683_REG_VERSION_LO 0x609
#define NCT6683_REG_CR_CASEOPEN 0xe8
#define NCT6683_CR_CASEOPEN_MASK (1 << 7)
#define NCT6683_REG_CR_BEEP 0xe0
#define NCT6683_CR_BEEP_MASK (1 << 6)
static const char *const nct6683_mon_label[] = {
NULL, /* disabled */
"Local",
"Diode 0 (curr)",
"Diode 1 (curr)",
"Diode 2 (curr)",
"Diode 0 (volt)",
"Diode 1 (volt)",
"Diode 2 (volt)",
"Thermistor 14",
"Thermistor 15",
"Thermistor 16",
"Thermistor 0",
"Thermistor 1",
"Thermistor 2",
"Thermistor 3",
"Thermistor 4",
"Thermistor 5", /* 0x10 */
"Thermistor 6",
"Thermistor 7",
"Thermistor 8",
"Thermistor 9",
"Thermistor 10",
"Thermistor 11",
"Thermistor 12",
"Thermistor 13",
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"PECI 0.0", /* 0x20 */
"PECI 1.0",
"PECI 2.0",
"PECI 3.0",
"PECI 0.1",
"PECI 1.1",
"PECI 2.1",
"PECI 3.1",
"PECI DIMM 0",
"PECI DIMM 1",
"PECI DIMM 2",
"PECI DIMM 3",
NULL, NULL, NULL, NULL,
"PCH CPU", /* 0x30 */
"PCH CHIP",
"PCH CHIP CPU MAX",
"PCH MCH",
"PCH DIMM 0",
"PCH DIMM 1",
"PCH DIMM 2",
"PCH DIMM 3",
"SMBus 0",
"SMBus 1",
"SMBus 2",
"SMBus 3",
"SMBus 4",
"SMBus 5",
"DIMM 0",
"DIMM 1",
"DIMM 2", /* 0x40 */
"DIMM 3",
"AMD TSI Addr 90h",
"AMD TSI Addr 92h",
"AMD TSI Addr 94h",
"AMD TSI Addr 96h",
"AMD TSI Addr 98h",
"AMD TSI Addr 9ah",
"AMD TSI Addr 9ch",
"AMD TSI Addr 9dh",
NULL, NULL, NULL, NULL, NULL, NULL,
"Virtual 0", /* 0x50 */
"Virtual 1",
"Virtual 2",
"Virtual 3",
"Virtual 4",
"Virtual 5",
"Virtual 6",
"Virtual 7",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"VCC", /* 0x60 voltage sensors */
"VSB",
"AVSB",
"VTT",
"VBAT",
"VREF",
"VIN0",
"VIN1",
"VIN2",
"VIN3",
"VIN4",
"VIN5",
"VIN6",
"VIN7",
"VIN8",
"VIN9",
"VIN10",
"VIN11",
"VIN12",
"VIN13",
"VIN14",
"VIN15",
"VIN16",
};
#define NUM_MON_LABELS ARRAY_SIZE(nct6683_mon_label)
#define MON_VOLTAGE_START 0x60
/* ------------------------------------------------------- */
struct nct6683_data {
int addr; /* IO base of EC space */
int sioreg; /* SIO register */
enum kinds kind;
u16 customer_id;
struct device *hwmon_dev;
const struct attribute_group *groups[6];
int temp_num; /* number of temperature attributes */
u8 temp_index[NCT6683_NUM_REG_MON];
u8 temp_src[NCT6683_NUM_REG_MON];
u8 in_num; /* number of voltage attributes */
u8 in_index[NCT6683_NUM_REG_MON];
u8 in_src[NCT6683_NUM_REG_MON];
struct mutex update_lock; /* used to protect sensor updates */
bool valid; /* true if following fields are valid */
unsigned long last_updated; /* In jiffies */
/* Voltage attribute values */
u8 in[3][NCT6683_NUM_REG_MON]; /* [0]=in, [1]=in_max, [2]=in_min */
/* Temperature attribute values */
s16 temp_in[NCT6683_NUM_REG_MON];
s8 temp[4][NCT6683_NUM_REG_MON];/* [0]=min, [1]=max, [2]=hyst,
* [3]=crit
*/
/* Fan attribute values */
unsigned int rpm[NCT6683_NUM_REG_FAN];
u16 fan_min[NCT6683_NUM_REG_FAN];
u8 fanin_cfg[NCT6683_NUM_REG_FAN];
u8 fanout_cfg[NCT6683_NUM_REG_FAN];
u16 have_fan; /* some fan inputs can be disabled */
u8 have_pwm;
u8 pwm[NCT6683_NUM_REG_PWM];
#ifdef CONFIG_PM
/* Remember extra register values over suspend/resume */
u8 hwm_cfg;
#endif
};
struct nct6683_sio_data {
int sioreg;
enum kinds kind;
};
struct sensor_device_template {
struct device_attribute dev_attr;
union {
struct {
u8 nr;
u8 index;
} s;
int index;
} u;
bool s2; /* true if both index and nr are used */
};
struct sensor_device_attr_u {
union {
struct sensor_device_attribute a1;
struct sensor_device_attribute_2 a2;
} u;
char name[32];
};
#define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \
.attr = {.name = _template, .mode = _mode }, \
.show = _show, \
.store = _store, \
}
#define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \
{ .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
.u.index = _index, \
.s2 = false }
#define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
_nr, _index) \
{ .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
.u.s.index = _index, \
.u.s.nr = _nr, \
.s2 = true }
#define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \
static struct sensor_device_template sensor_dev_template_##_name \
= SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \
_index)
#define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \
_nr, _index) \
static struct sensor_device_template sensor_dev_template_##_name \
= SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
_nr, _index)
struct sensor_template_group {
struct sensor_device_template **templates;
umode_t (*is_visible)(struct kobject *, struct attribute *, int);
int base;
};
static struct attribute_group *
nct6683_create_attr_group(struct device *dev, struct sensor_template_group *tg,
int repeat)
{
struct sensor_device_attribute_2 *a2;
struct sensor_device_attribute *a;
struct sensor_device_template **t;
struct sensor_device_attr_u *su;
struct attribute_group *group;
struct attribute **attrs;
int i, j, count;
if (repeat <= 0)
return ERR_PTR(-EINVAL);
t = tg->templates;
for (count = 0; *t; t++, count++)
;
if (count == 0)
return ERR_PTR(-EINVAL);
group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
if (group == NULL)
return ERR_PTR(-ENOMEM);
attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1),
GFP_KERNEL);
if (attrs == NULL)
return ERR_PTR(-ENOMEM);
su = devm_kzalloc(dev, sizeof(*su) * repeat * count,
GFP_KERNEL);
if (su == NULL)
return ERR_PTR(-ENOMEM);
group->attrs = attrs;
group->is_visible = tg->is_visible;
for (i = 0; i < repeat; i++) {
t = tg->templates;
for (j = 0; *t != NULL; j++) {
snprintf(su->name, sizeof(su->name),
(*t)->dev_attr.attr.name, tg->base + i);
if ((*t)->s2) {
a2 = &su->u.a2;
a2->dev_attr.attr.name = su->name;
a2->nr = (*t)->u.s.nr + i;
a2->index = (*t)->u.s.index;
a2->dev_attr.attr.mode =
(*t)->dev_attr.attr.mode;
a2->dev_attr.show = (*t)->dev_attr.show;
a2->dev_attr.store = (*t)->dev_attr.store;
*attrs = &a2->dev_attr.attr;
} else {
a = &su->u.a1;
a->dev_attr.attr.name = su->name;
a->index = (*t)->u.index + i;
a->dev_attr.attr.mode =
(*t)->dev_attr.attr.mode;
a->dev_attr.show = (*t)->dev_attr.show;
a->dev_attr.store = (*t)->dev_attr.store;
*attrs = &a->dev_attr.attr;
}
attrs++;
su++;
t++;
}
}
return group;
}
/* LSB is 16 mV, except for the following sources, where it is 32 mV */
#define MON_SRC_VCC 0x60
#define MON_SRC_VSB 0x61
#define MON_SRC_AVSB 0x62
#define MON_SRC_VBAT 0x64
static inline long in_from_reg(u16 reg, u8 src)
{
int scale = 16;
if (src == MON_SRC_VCC || src == MON_SRC_VSB || src == MON_SRC_AVSB ||
src == MON_SRC_VBAT)
scale <<= 1;
return reg * scale;
}
static inline u16 in_to_reg(u32 val, u8 src)
{
int scale = 16;
if (src == MON_SRC_VCC || src == MON_SRC_VSB || src == MON_SRC_AVSB ||
src == MON_SRC_VBAT)
scale <<= 1;
return clamp_val(DIV_ROUND_CLOSEST(val, scale), 0, 127);
}
static u16 nct6683_read(struct nct6683_data *data, u16 reg)
{
int res;
outb_p(0xff, data->addr + EC_PAGE_REG); /* unlock */
outb_p(reg >> 8, data->addr + EC_PAGE_REG);
outb_p(reg & 0xff, data->addr + EC_INDEX_REG);
res = inb_p(data->addr + EC_DATA_REG);
return res;
}
static u16 nct6683_read16(struct nct6683_data *data, u16 reg)
{
return (nct6683_read(data, reg) << 8) | nct6683_read(data, reg + 1);
}
static void nct6683_write(struct nct6683_data *data, u16 reg, u16 value)
{
outb_p(0xff, data->addr + EC_PAGE_REG); /* unlock */
outb_p(reg >> 8, data->addr + EC_PAGE_REG);
outb_p(reg & 0xff, data->addr + EC_INDEX_REG);
outb_p(value & 0xff, data->addr + EC_DATA_REG);
}
static int get_in_reg(struct nct6683_data *data, int nr, int index)
{
int ch = data->in_index[index];
int reg = -EINVAL;
switch (nr) {
case 0:
reg = NCT6683_REG_MON(ch);
break;
case 1:
if (data->customer_id != NCT6683_CUSTOMER_ID_INTEL)
reg = NCT6683_REG_MON_LOW(ch);
break;
case 2:
if (data->customer_id != NCT6683_CUSTOMER_ID_INTEL)
reg = NCT6683_REG_MON_HIGH(ch);
break;
default:
break;
}
return reg;
}
static int get_temp_reg(struct nct6683_data *data, int nr, int index)
{
int ch = data->temp_index[index];
int reg = -EINVAL;
switch (data->customer_id) {
case NCT6683_CUSTOMER_ID_INTEL:
switch (nr) {
default:
case 1: /* max */
reg = NCT6683_REG_INTEL_TEMP_MAX(ch);
break;
case 3: /* crit */
reg = NCT6683_REG_INTEL_TEMP_CRIT(ch);
break;
}
break;
default:
switch (nr) {
default:
case 0: /* min */
reg = NCT6683_REG_MON_LOW(ch);
break;
case 1: /* max */
reg = NCT6683_REG_TEMP_MAX(ch);
break;
case 2: /* hyst */
reg = NCT6683_REG_TEMP_HYST(ch);
break;
case 3: /* crit */
reg = NCT6683_REG_MON_HIGH(ch);
break;
}
break;
}
return reg;
}
static void nct6683_update_pwm(struct device *dev)
{
struct nct6683_data *data = dev_get_drvdata(dev);
int i;
for (i = 0; i < NCT6683_NUM_REG_PWM; i++) {
if (!(data->have_pwm & (1 << i)))
continue;
data->pwm[i] = nct6683_read(data, NCT6683_REG_PWM(i));
}
}
static struct nct6683_data *nct6683_update_device(struct device *dev)
{
struct nct6683_data *data = dev_get_drvdata(dev);
int i, j;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
/* Measured voltages and limits */
for (i = 0; i < data->in_num; i++) {
for (j = 0; j < 3; j++) {
int reg = get_in_reg(data, j, i);
if (reg >= 0)
data->in[j][i] =
nct6683_read(data, reg);
}
}
/* Measured temperatures and limits */
for (i = 0; i < data->temp_num; i++) {
u8 ch = data->temp_index[i];
data->temp_in[i] = nct6683_read16(data,
NCT6683_REG_MON(ch));
for (j = 0; j < 4; j++) {
int reg = get_temp_reg(data, j, i);
if (reg >= 0)
data->temp[j][i] =
nct6683_read(data, reg);
}
}
/* Measured fan speeds and limits */
for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
if (!(data->have_fan & (1 << i)))
continue;
data->rpm[i] = nct6683_read16(data,
NCT6683_REG_FAN_RPM(i));
data->fan_min[i] = nct6683_read16(data,
NCT6683_REG_FAN_MIN(i));
}
nct6683_update_pwm(dev);
data->last_updated = jiffies;
data->valid = true;
}
mutex_unlock(&data->update_lock);
return data;
}
/*
* Sysfs callback functions
*/
static ssize_t
show_in_label(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6683_data *data = nct6683_update_device(dev);
int nr = sattr->index;
return sprintf(buf, "%s\n", nct6683_mon_label[data->in_src[nr]]);
}
static ssize_t
show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct nct6683_data *data = nct6683_update_device(dev);
int index = sattr->index;
int nr = sattr->nr;
return sprintf(buf, "%ld\n",
in_from_reg(data->in[index][nr], data->in_index[index]));
}
static umode_t nct6683_in_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct6683_data *data = dev_get_drvdata(dev);
int nr = index % 4; /* attribute */
/*
* Voltage limits exist for Intel boards,
* but register location and encoding is unknown
*/
if ((nr == 2 || nr == 3) &&
data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
return 0;
return attr->mode;
}
SENSOR_TEMPLATE(in_label, "in%d_label", S_IRUGO, show_in_label, NULL, 0);
SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IRUGO, show_in_reg, NULL, 0, 1);
SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IRUGO, show_in_reg, NULL, 0, 2);
static struct sensor_device_template *nct6683_attributes_in_template[] = {
&sensor_dev_template_in_label,
&sensor_dev_template_in_input,
&sensor_dev_template_in_min,
&sensor_dev_template_in_max,
NULL
};
static struct sensor_template_group nct6683_in_template_group = {
.templates = nct6683_attributes_in_template,
.is_visible = nct6683_in_is_visible,
};
static ssize_t
show_fan(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6683_data *data = nct6683_update_device(dev);
return sprintf(buf, "%d\n", data->rpm[sattr->index]);
}
static ssize_t
show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6683_data *data = nct6683_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
return sprintf(buf, "%d\n", data->fan_min[nr]);
}
static ssize_t
show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6683_data *data = nct6683_update_device(dev);
return sprintf(buf, "%d\n",
((data->fanin_cfg[sattr->index] >> 5) & 0x03) + 1);
}
static umode_t nct6683_fan_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct6683_data *data = dev_get_drvdata(dev);
int fan = index / 3; /* fan index */
int nr = index % 3; /* attribute index */
if (!(data->have_fan & (1 << fan)))
return 0;
/*
* Intel may have minimum fan speed limits,
* but register location and encoding are unknown.
*/
if (nr == 2 && data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
return 0;
return attr->mode;
}
SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IRUGO, show_fan_pulses, NULL, 0);
SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IRUGO, show_fan_min, NULL, 0);
/*
* nct6683_fan_is_visible uses the index into the following array
* to determine if attributes should be created or not.
* Any change in order or content must be matched.
*/
static struct sensor_device_template *nct6683_attributes_fan_template[] = {
&sensor_dev_template_fan_input,
&sensor_dev_template_fan_pulses,
&sensor_dev_template_fan_min,
NULL
};
static struct sensor_template_group nct6683_fan_template_group = {
.templates = nct6683_attributes_fan_template,
.is_visible = nct6683_fan_is_visible,
.base = 1,
};
static ssize_t
show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6683_data *data = nct6683_update_device(dev);
int nr = sattr->index;
return sprintf(buf, "%s\n", nct6683_mon_label[data->temp_src[nr]]);
}
static ssize_t
show_temp8(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct nct6683_data *data = nct6683_update_device(dev);
int index = sattr->index;
int nr = sattr->nr;
return sprintf(buf, "%d\n", data->temp[index][nr] * 1000);
}
static ssize_t
show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6683_data *data = nct6683_update_device(dev);
int nr = sattr->index;
int temp = data->temp[1][nr] - data->temp[2][nr];
return sprintf(buf, "%d\n", temp * 1000);
}
static ssize_t
show_temp16(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6683_data *data = nct6683_update_device(dev);
int index = sattr->index;
return sprintf(buf, "%d\n", (data->temp_in[index] / 128) * 500);
}
/*
* Temperature sensor type is determined by temperature source
* and can not be modified.
* 0x02..0x07: Thermal diode
* 0x08..0x18: Thermistor
* 0x20..0x2b: Intel PECI
* 0x42..0x49: AMD TSI
* Others are unspecified (not visible)
*/
static int get_temp_type(u8 src)
{
if (src >= 0x02 && src <= 0x07)
return 3; /* thermal diode */
else if (src >= 0x08 && src <= 0x18)
return 4; /* thermistor */
else if (src >= 0x20 && src <= 0x2b)
return 6; /* PECI */
else if (src >= 0x42 && src <= 0x49)
return 5;
return 0;
}
static ssize_t
show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6683_data *data = nct6683_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
return sprintf(buf, "%d\n", get_temp_type(data->temp_src[nr]));
}
static umode_t nct6683_temp_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct6683_data *data = dev_get_drvdata(dev);
int temp = index / 7; /* temp index */
int nr = index % 7; /* attribute index */
/*
* Intel does not have low temperature limits or temperature hysteresis
* registers, or at least register location and encoding is unknown.
*/
if ((nr == 2 || nr == 4) &&
data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
return 0;
if (nr == 6 && get_temp_type(data->temp_src[temp]) == 0)
return 0; /* type */
return attr->mode;
}
SENSOR_TEMPLATE(temp_input, "temp%d_input", S_IRUGO, show_temp16, NULL, 0);
SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
SENSOR_TEMPLATE_2(temp_min, "temp%d_min", S_IRUGO, show_temp8, NULL, 0, 0);
SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO, show_temp8, NULL, 0, 1);
SENSOR_TEMPLATE(temp_max_hyst, "temp%d_max_hyst", S_IRUGO, show_temp_hyst, NULL,
0);
SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO, show_temp8, NULL, 0, 3);
SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO, show_temp_type, NULL, 0);
/*
* nct6683_temp_is_visible uses the index into the following array
* to determine if attributes should be created or not.
* Any change in order or content must be matched.
*/
static struct sensor_device_template *nct6683_attributes_temp_template[] = {
&sensor_dev_template_temp_input,
&sensor_dev_template_temp_label,
&sensor_dev_template_temp_min, /* 2 */
&sensor_dev_template_temp_max, /* 3 */
&sensor_dev_template_temp_max_hyst, /* 4 */
&sensor_dev_template_temp_crit, /* 5 */
&sensor_dev_template_temp_type, /* 6 */
NULL
};
static struct sensor_template_group nct6683_temp_template_group = {
.templates = nct6683_attributes_temp_template,
.is_visible = nct6683_temp_is_visible,
.base = 1,
};
static ssize_t
show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6683_data *data = nct6683_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int index = sattr->index;
return sprintf(buf, "%d\n", data->pwm[index]);
}
SENSOR_TEMPLATE(pwm, "pwm%d", S_IRUGO, show_pwm, NULL, 0);
static umode_t nct6683_pwm_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct6683_data *data = dev_get_drvdata(dev);
int pwm = index; /* pwm index */
if (!(data->have_pwm & (1 << pwm)))
return 0;
return attr->mode;
}
static struct sensor_device_template *nct6683_attributes_pwm_template[] = {
&sensor_dev_template_pwm,
NULL
};
static struct sensor_template_group nct6683_pwm_template_group = {
.templates = nct6683_attributes_pwm_template,
.is_visible = nct6683_pwm_is_visible,
.base = 1,
};
static ssize_t
show_global_beep(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6683_data *data = dev_get_drvdata(dev);
int ret;
u8 reg;
mutex_lock(&data->update_lock);
ret = superio_enter(data->sioreg);
if (ret)
goto error;
superio_select(data->sioreg, NCT6683_LD_HWM);
reg = superio_inb(data->sioreg, NCT6683_REG_CR_BEEP);
superio_exit(data->sioreg);
mutex_unlock(&data->update_lock);
return sprintf(buf, "%u\n", !!(reg & NCT6683_CR_BEEP_MASK));
error:
mutex_unlock(&data->update_lock);
return ret;
}
static ssize_t
store_global_beep(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6683_data *data = dev_get_drvdata(dev);
unsigned long val;
u8 reg;
int ret;
if (kstrtoul(buf, 10, &val) || (val != 0 && val != 1))
return -EINVAL;
mutex_lock(&data->update_lock);
ret = superio_enter(data->sioreg);
if (ret) {
count = ret;
goto error;
}
superio_select(data->sioreg, NCT6683_LD_HWM);
reg = superio_inb(data->sioreg, NCT6683_REG_CR_BEEP);
if (val)
reg |= NCT6683_CR_BEEP_MASK;
else
reg &= ~NCT6683_CR_BEEP_MASK;
superio_outb(data->sioreg, NCT6683_REG_CR_BEEP, reg);
superio_exit(data->sioreg);
error:
mutex_unlock(&data->update_lock);
return count;
}
/* Case open detection */
static ssize_t
show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6683_data *data = dev_get_drvdata(dev);
int ret;
u8 reg;
mutex_lock(&data->update_lock);
ret = superio_enter(data->sioreg);
if (ret)
goto error;
superio_select(data->sioreg, NCT6683_LD_ACPI);
reg = superio_inb(data->sioreg, NCT6683_REG_CR_CASEOPEN);
superio_exit(data->sioreg);
mutex_unlock(&data->update_lock);
return sprintf(buf, "%u\n", !(reg & NCT6683_CR_CASEOPEN_MASK));
error:
mutex_unlock(&data->update_lock);
return ret;
}
static ssize_t
clear_caseopen(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6683_data *data = dev_get_drvdata(dev);
unsigned long val;
u8 reg;
int ret;
if (kstrtoul(buf, 10, &val) || val != 0)
return -EINVAL;
mutex_lock(&data->update_lock);
/*
* Use CR registers to clear caseopen status.
* Caseopen is activ low, clear by writing 1 into the register.
*/
ret = superio_enter(data->sioreg);
if (ret) {
count = ret;
goto error;
}
superio_select(data->sioreg, NCT6683_LD_ACPI);
reg = superio_inb(data->sioreg, NCT6683_REG_CR_CASEOPEN);
reg |= NCT6683_CR_CASEOPEN_MASK;
superio_outb(data->sioreg, NCT6683_REG_CR_CASEOPEN, reg);
reg &= ~NCT6683_CR_CASEOPEN_MASK;
superio_outb(data->sioreg, NCT6683_REG_CR_CASEOPEN, reg);
superio_exit(data->sioreg);
data->valid = false; /* Force cache refresh */
error:
mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
clear_caseopen);
static DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_global_beep,
store_global_beep);
static struct attribute *nct6683_attributes_other[] = {
&dev_attr_intrusion0_alarm.attr,
&dev_attr_beep_enable.attr,
NULL
};
static const struct attribute_group nct6683_group_other = {
.attrs = nct6683_attributes_other,
};
/* Get the monitoring functions started */
static inline void nct6683_init_device(struct nct6683_data *data)
{
u8 tmp;
/* Start hardware monitoring if needed */
tmp = nct6683_read(data, NCT6683_HWM_CFG);
if (!(tmp & 0x80))
nct6683_write(data, NCT6683_HWM_CFG, tmp | 0x80);
}
/*
* There are a total of 24 fan inputs. Each can be configured as input
* or as output. A maximum of 16 inputs and 8 outputs is configurable.
*/
static void
nct6683_setup_fans(struct nct6683_data *data)
{
int i;
u8 reg;
for (i = 0; i < NCT6683_NUM_REG_FAN; i++) {
reg = nct6683_read(data, NCT6683_REG_FANIN_CFG(i));
if (reg & 0x80)
data->have_fan |= 1 << i;
data->fanin_cfg[i] = reg;
}
for (i = 0; i < NCT6683_NUM_REG_PWM; i++) {
reg = nct6683_read(data, NCT6683_REG_FANOUT_CFG(i));
if (reg & 0x80)
data->have_pwm |= 1 << i;
data->fanout_cfg[i] = reg;
}
}
/*
* Translation from monitoring register to temperature and voltage attributes
* ==========================================================================
*
* There are a total of 32 monitoring registers. Each can be assigned to either
* a temperature or voltage monitoring source.
* NCT6683_REG_MON_CFG(x) defines assignment for each monitoring source.
*
* Temperature and voltage attribute mapping is determined by walking through
* the NCT6683_REG_MON_CFG registers. If the assigned source is
* a temperature, temp_index[n] is set to the monitor register index, and
* temp_src[n] is set to the temperature source. If the assigned source is
* a voltage, the respective values are stored in in_index[] and in_src[],
* respectively.
*/
static void nct6683_setup_sensors(struct nct6683_data *data)
{
u8 reg;
int i;
data->temp_num = 0;
data->in_num = 0;
for (i = 0; i < NCT6683_NUM_REG_MON; i++) {
reg = nct6683_read(data, NCT6683_REG_MON_CFG(i)) & 0x7f;
/* Ignore invalid assignments */
if (reg >= NUM_MON_LABELS)
continue;
/* Skip if disabled or reserved */
if (nct6683_mon_label[reg] == NULL)
continue;
if (reg < MON_VOLTAGE_START) {
data->temp_index[data->temp_num] = i;
data->temp_src[data->temp_num] = reg;
data->temp_num++;
} else {
data->in_index[data->in_num] = i;
data->in_src[data->in_num] = reg;
data->in_num++;
}
}
}
static int nct6683_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct nct6683_sio_data *sio_data = dev->platform_data;
struct attribute_group *group;
struct nct6683_data *data;
struct device *hwmon_dev;
struct resource *res;
int groups = 0;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!devm_request_region(dev, res->start, IOREGION_LENGTH, DRVNAME))
return -EBUSY;
data = devm_kzalloc(dev, sizeof(struct nct6683_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->kind = sio_data->kind;
data->sioreg = sio_data->sioreg;
data->addr = res->start;
mutex_init(&data->update_lock);
platform_set_drvdata(pdev, data);
data->customer_id = nct6683_read16(data, NCT6683_REG_CUSTOMER_ID);
nct6683_init_device(data);
nct6683_setup_fans(data);
nct6683_setup_sensors(data);
/* Register sysfs hooks */
if (data->have_pwm) {
group = nct6683_create_attr_group(dev,
&nct6683_pwm_template_group,
fls(data->have_pwm));
if (IS_ERR(group))
return PTR_ERR(group);
data->groups[groups++] = group;
}
if (data->in_num) {
group = nct6683_create_attr_group(dev,
&nct6683_in_template_group,
data->in_num);
if (IS_ERR(group))
return PTR_ERR(group);
data->groups[groups++] = group;
}
if (data->have_fan) {
group = nct6683_create_attr_group(dev,
&nct6683_fan_template_group,
fls(data->have_fan));
if (IS_ERR(group))
return PTR_ERR(group);
data->groups[groups++] = group;
}
if (data->temp_num) {
group = nct6683_create_attr_group(dev,
&nct6683_temp_template_group,
data->temp_num);
if (IS_ERR(group))
return PTR_ERR(group);
data->groups[groups++] = group;
}
data->groups[groups++] = &nct6683_group_other;
dev_info(dev, "%s EC firmware version %d.%d build %02x/%02x/%02x\n",
nct6683_chip_names[data->kind],
nct6683_read(data, NCT6683_REG_VERSION_HI),
nct6683_read(data, NCT6683_REG_VERSION_LO),
nct6683_read(data, NCT6683_REG_BUILD_MONTH),
nct6683_read(data, NCT6683_REG_BUILD_DAY),
nct6683_read(data, NCT6683_REG_BUILD_YEAR));
hwmon_dev = devm_hwmon_device_register_with_groups(dev,
nct6683_device_names[data->kind], data, data->groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
#ifdef CONFIG_PM
static int nct6683_suspend(struct device *dev)
{
struct nct6683_data *data = nct6683_update_device(dev);
mutex_lock(&data->update_lock);
data->hwm_cfg = nct6683_read(data, NCT6683_HWM_CFG);
mutex_unlock(&data->update_lock);
return 0;
}
static int nct6683_resume(struct device *dev)
{
struct nct6683_data *data = dev_get_drvdata(dev);
mutex_lock(&data->update_lock);
nct6683_write(data, NCT6683_HWM_CFG, data->hwm_cfg);
/* Force re-reading all values */
data->valid = false;
mutex_unlock(&data->update_lock);
return 0;
}
static const struct dev_pm_ops nct6683_dev_pm_ops = {
.suspend = nct6683_suspend,
.resume = nct6683_resume,
.freeze = nct6683_suspend,
.restore = nct6683_resume,
};
#define NCT6683_DEV_PM_OPS (&nct6683_dev_pm_ops)
#else
#define NCT6683_DEV_PM_OPS NULL
#endif /* CONFIG_PM */
static struct platform_driver nct6683_driver = {
.driver = {
.owner = THIS_MODULE,
.name = DRVNAME,
.pm = NCT6683_DEV_PM_OPS,
},
.probe = nct6683_probe,
};
static int __init nct6683_find(int sioaddr, struct nct6683_sio_data *sio_data)
{
const char *board_vendor;
int addr;
u16 val;
int err;
/*
* Only run on Intel boards unless the 'force' module parameter is set
*/
if (!force) {
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
if (!board_vendor || strcmp(board_vendor, "Intel Corporation"))
return -ENODEV;
}
err = superio_enter(sioaddr);
if (err)
return err;
val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
| superio_inb(sioaddr, SIO_REG_DEVID + 1);
switch (val & SIO_ID_MASK) {
case SIO_NCT6683_ID:
sio_data->kind = nct6683;
break;
default:
if (val != 0xffff)
pr_debug("unsupported chip ID: 0x%04x\n", val);
goto fail;
}
/* We have a known chip, find the HWM I/O address */
superio_select(sioaddr, NCT6683_LD_HWM);
val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
| superio_inb(sioaddr, SIO_REG_ADDR + 1);
addr = val & IOREGION_ALIGNMENT;
if (addr == 0) {
pr_err("EC base I/O port unconfigured\n");
goto fail;
}
/* Activate logical device if needed */
val = superio_inb(sioaddr, SIO_REG_ENABLE);
if (!(val & 0x01)) {
pr_err("EC is disabled\n");
goto fail;
}
superio_exit(sioaddr);
pr_info("Found %s or compatible chip at %#x:%#x\n",
nct6683_chip_names[sio_data->kind], sioaddr, addr);
sio_data->sioreg = sioaddr;
return addr;
fail:
superio_exit(sioaddr);
return -ENODEV;
}
/*
* when Super-I/O functions move to a separate file, the Super-I/O
* bus will manage the lifetime of the device and this module will only keep
* track of the nct6683 driver. But since we use platform_device_alloc(), we
* must keep track of the device
*/
static struct platform_device *pdev[2];
static int __init sensors_nct6683_init(void)
{
struct nct6683_sio_data sio_data;
int sioaddr[2] = { 0x2e, 0x4e };
struct resource res;
bool found = false;
int address;
int i, err;
err = platform_driver_register(&nct6683_driver);
if (err)
return err;
/*
* initialize sio_data->kind and sio_data->sioreg.
*
* when Super-I/O functions move to a separate file, the Super-I/O
* driver will probe 0x2e and 0x4e and auto-detect the presence of a
* nct6683 hardware monitor, and call probe()
*/
for (i = 0; i < ARRAY_SIZE(pdev); i++) {
address = nct6683_find(sioaddr[i], &sio_data);
if (address <= 0)
continue;
found = true;
pdev[i] = platform_device_alloc(DRVNAME, address);
if (!pdev[i]) {
err = -ENOMEM;
goto exit_device_unregister;
}
err = platform_device_add_data(pdev[i], &sio_data,
sizeof(struct nct6683_sio_data));
if (err)
goto exit_device_put;
memset(&res, 0, sizeof(res));
res.name = DRVNAME;
res.start = address + IOREGION_OFFSET;
res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
res.flags = IORESOURCE_IO;
err = acpi_check_resource_conflict(&res);
if (err) {
platform_device_put(pdev[i]);
pdev[i] = NULL;
continue;
}
err = platform_device_add_resources(pdev[i], &res, 1);
if (err)
goto exit_device_put;
/* platform_device_add calls probe() */
err = platform_device_add(pdev[i]);
if (err)
goto exit_device_put;
}
if (!found) {
err = -ENODEV;
goto exit_unregister;
}
return 0;
exit_device_put:
platform_device_put(pdev[i]);
exit_device_unregister:
while (--i >= 0) {
if (pdev[i])
platform_device_unregister(pdev[i]);
}
exit_unregister:
platform_driver_unregister(&nct6683_driver);
return err;
}
static void __exit sensors_nct6683_exit(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(pdev); i++) {
if (pdev[i])
platform_device_unregister(pdev[i]);
}
platform_driver_unregister(&nct6683_driver);
}
MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
MODULE_DESCRIPTION("NCT6683D driver");
MODULE_LICENSE("GPL");
module_init(sensors_nct6683_init);
module_exit(sensors_nct6683_exit);
drivers/hwmon/nct6775.c
View file @ f4562052
......@@ -4160,7 +4160,7 @@ static int __init sensors_nct6775_init(void)
pdev[i] = platform_device_alloc(DRVNAME, address);
if (!pdev[i]) {
err = -ENOMEM;
goto exit_device_put;
goto exit_device_unregister;
}
err = platform_device_add_data(pdev[i], &sio_data,
......@@ -4198,9 +4198,11 @@ static int __init sensors_nct6775_init(void)
return 0;
exit_device_put:
for (i = 0; i < ARRAY_SIZE(pdev); i++) {
if (pdev[i])
platform_device_put(pdev[i]);
exit_device_unregister:
while (--i >= 0) {
if (pdev[i])
platform_device_unregister(pdev[i]);
}
exit_unregister:
platform_driver_unregister(&nct6775_driver);
......
drivers/hwmon/pc87427.c
View file @ f4562052
......@@ -1081,10 +1081,8 @@ static int pc87427_probe(struct platform_device *pdev)
data = devm_kzalloc(&pdev->dev, sizeof(struct pc87427_data),
GFP_KERNEL);
if (!data) {
pr_err("Out of memory\n");
if (!data)
return -ENOMEM;
}
data->address[0] = sio_data->address[0];
data->address[1] = sio_data->address[1];
......
drivers/hwmon/s3c-hwmon.c
View file @ f4562052
......@@ -285,10 +285,8 @@ static int s3c_hwmon_probe(struct platform_device *dev)
}
hwmon = devm_kzalloc(&dev->dev, sizeof(struct s3c_hwmon), GFP_KERNEL);
if (hwmon == NULL) {
dev_err(&dev->dev, "no memory\n");
if (hwmon == NULL)
return -ENOMEM;
}
platform_set_drvdata(dev, hwmon);
......
drivers/hwmon/tmp102.c
View file @ f4562052
......@@ -51,6 +51,7 @@
#define TMP102_THIGH_REG 0x03
struct tmp102 {
struct i2c_client *client;
struct device *hwmon_dev;
struct thermal_zone_device *tz;
struct mutex lock;
......@@ -77,9 +78,10 @@ static const u8 tmp102_reg[] = {
TMP102_THIGH_REG,
};
static struct tmp102 *tmp102_update_device(struct i2c_client *client)
static struct tmp102 *tmp102_update_device(struct device *dev)
{
struct tmp102 *tmp102 = i2c_get_clientdata(client);
struct tmp102 *tmp102 = dev_get_drvdata(dev);
struct i2c_client *client = tmp102->client;
mutex_lock(&tmp102->lock);
if (time_after(jiffies, tmp102->last_update + HZ / 3)) {
......@@ -98,7 +100,7 @@ static struct tmp102 *tmp102_update_device(struct i2c_client *client)
static int tmp102_read_temp(void *dev, long *temp)
{
struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
struct tmp102 *tmp102 = tmp102_update_device(dev);
*temp = tmp102->temp[0];
......@@ -110,7 +112,7 @@ static ssize_t tmp102_show_temp(struct device *dev,
char *buf)
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
struct tmp102 *tmp102 = tmp102_update_device(dev);
return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
}
......@@ -120,8 +122,8 @@ static ssize_t tmp102_set_temp(struct device *dev,
const char *buf, size_t count)
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct i2c_client *client = to_i2c_client(dev);
struct tmp102 *tmp102 = i2c_get_clientdata(client);
struct tmp102 *tmp102 = dev_get_drvdata(dev);
struct i2c_client *client = tmp102->client;
long val;
int status;
......@@ -145,16 +147,13 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, tmp102_show_temp,
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp102_show_temp,
tmp102_set_temp, 2);
static struct attribute *tmp102_attributes[] = {
static struct attribute *tmp102_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
NULL
};
static const struct attribute_group tmp102_attr_group = {
.attrs = tmp102_attributes,
};
ATTRIBUTE_GROUPS(tmp102);
#define TMP102_CONFIG (TMP102_CONF_TM | TMP102_CONF_EM | TMP102_CONF_CR1)
#define TMP102_CONFIG_RD_ONLY (TMP102_CONF_R0 | TMP102_CONF_R1 | TMP102_CONF_AL)
......@@ -162,72 +161,68 @@ static const struct attribute_group tmp102_attr_group = {
static int tmp102_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
struct tmp102 *tmp102;
int status;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_WORD_DATA)) {
dev_err(&client->dev,
dev_err(dev,
"adapter doesn't support SMBus word transactions\n");
return -ENODEV;
}
tmp102 = devm_kzalloc(&client->dev, sizeof(*tmp102), GFP_KERNEL);
tmp102 = devm_kzalloc(dev, sizeof(*tmp102), GFP_KERNEL);
if (!tmp102)
return -ENOMEM;
i2c_set_clientdata(client, tmp102);
tmp102->client = client;
status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
if (status < 0) {
dev_err(&client->dev, "error reading config register\n");
dev_err(dev, "error reading config register\n");
return status;
}
tmp102->config_orig = status;
status = i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
TMP102_CONFIG);
if (status < 0) {
dev_err(&client->dev, "error writing config register\n");
dev_err(dev, "error writing config register\n");
goto fail_restore_config;
}
status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
if (status < 0) {
dev_err(&client->dev, "error reading config register\n");
dev_err(dev, "error reading config register\n");
goto fail_restore_config;
}
status &= ~TMP102_CONFIG_RD_ONLY;
if (status != TMP102_CONFIG) {
dev_err(&client->dev, "config settings did not stick\n");
dev_err(dev, "config settings did not stick\n");
status = -ENODEV;
goto fail_restore_config;
}
tmp102->last_update = jiffies - HZ;
mutex_init(&tmp102->lock);
status = sysfs_create_group(&client->dev.kobj, &tmp102_attr_group);
if (status) {
dev_dbg(&client->dev, "could not create sysfs files\n");
hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
tmp102, tmp102_groups);
if (IS_ERR(hwmon_dev)) {
dev_dbg(dev, "unable to register hwmon device\n");
status = PTR_ERR(hwmon_dev);
goto fail_restore_config;
}
tmp102->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(tmp102->hwmon_dev)) {
dev_dbg(&client->dev, "unable to register hwmon device\n");
status = PTR_ERR(tmp102->hwmon_dev);
goto fail_remove_sysfs;
}
tmp102->tz = thermal_zone_of_sensor_register(&client->dev, 0,
&client->dev,
tmp102->hwmon_dev = hwmon_dev;
tmp102->tz = thermal_zone_of_sensor_register(hwmon_dev, 0, hwmon_dev,
tmp102_read_temp, NULL);
if (IS_ERR(tmp102->tz))
tmp102->tz = NULL;
dev_info(&client->dev, "initialized\n");
dev_info(dev, "initialized\n");
return 0;
fail_remove_sysfs:
sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
fail_restore_config:
i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
tmp102->config_orig);
......@@ -238,9 +233,8 @@ static int tmp102_remove(struct i2c_client *client)
{
struct tmp102 *tmp102 = i2c_get_clientdata(client);
thermal_zone_of_sensor_unregister(&client->dev, tmp102->tz);
thermal_zone_of_sensor_unregister(tmp102->hwmon_dev, tmp102->tz);
hwmon_device_unregister(tmp102->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
/* Stop monitoring if device was stopped originally */
if (tmp102->config_orig & TMP102_CONF_SD) {
......
drivers/hwmon/tmp421.c
View file @ f4562052
......@@ -69,7 +69,7 @@ static const struct i2c_device_id tmp421_id[] = {
MODULE_DEVICE_TABLE(i2c, tmp421_id);
struct tmp421_data {
struct device *hwmon_dev;
struct i2c_client *client;
struct mutex update_lock;
char valid;
unsigned long last_updated;
......@@ -99,8 +99,8 @@ static int temp_from_u16(u16 reg)
static struct tmp421_data *tmp421_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct tmp421_data *data = i2c_get_clientdata(client);
struct tmp421_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int i;
mutex_lock(&data->update_lock);
......@@ -198,6 +198,11 @@ static const struct attribute_group tmp421_group = {
.is_visible = tmp421_is_visible,
};
static const struct attribute_group *tmp421_groups[] = {
&tmp421_group,
NULL
};
static int tmp421_init_client(struct i2c_client *client)
{
int config, config_orig;
......@@ -264,47 +269,26 @@ static int tmp421_detect(struct i2c_client *client,
static int tmp421_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
struct tmp421_data *data;
int err;
data = devm_kzalloc(&client->dev, sizeof(struct tmp421_data),
GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(struct tmp421_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
data->channels = id->driver_data;
data->client = client;
err = tmp421_init_client(client);
if (err)
return err;
err = sysfs_create_group(&client->dev.kobj, &tmp421_group);
if (err)
return err;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
data->hwmon_dev = NULL;
goto exit_remove;
}
return 0;
exit_remove:
sysfs_remove_group(&client->dev.kobj, &tmp421_group);
return err;
}
static int tmp421_remove(struct i2c_client *client)
{
struct tmp421_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &tmp421_group);
return 0;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, tmp421_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static struct i2c_driver tmp421_driver = {
......@@ -313,7 +297,6 @@ static struct i2c_driver tmp421_driver = {
.name = "tmp421",
},
.probe = tmp421_probe,
.remove = tmp421_remove,
.id_table = tmp421_id,
.detect = tmp421_detect,
.address_list = normal_i2c,
......
drivers/hwmon/ultra45_env.c
View file @ f4562052
......@@ -252,7 +252,7 @@ static const struct attribute_group env_group = {
static int env_probe(struct platform_device *op)
{
struct env *p = kzalloc(sizeof(*p), GFP_KERNEL);
struct env *p = devm_kzalloc(&op->dev, sizeof(*p), GFP_KERNEL);
int err = -ENOMEM;
if (!p)
......@@ -262,7 +262,7 @@ static int env_probe(struct platform_device *op)
p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
if (!p->regs)
goto out_free;
goto out;
err = sysfs_create_group(&op->dev.kobj, &env_group);
if (err)
......@@ -286,8 +286,6 @@ static int env_probe(struct platform_device *op)
out_iounmap:
of_iounmap(&op->resource[0], p->regs, REG_SIZE);
out_free:
kfree(p);
goto out;
}
......@@ -299,7 +297,6 @@ static int env_remove(struct platform_device *op)
sysfs_remove_group(&op->dev.kobj, &env_group);
hwmon_device_unregister(p->hwmon_dev);
of_iounmap(&op->resource[0], p->regs, REG_SIZE);
kfree(p);
}
return 0;
......
drivers/hwmon/vt1211.c
View file @ f4562052
......@@ -1152,10 +1152,8 @@ static int vt1211_probe(struct platform_device *pdev)
int i, err;
data = devm_kzalloc(dev, sizeof(struct vt1211_data), GFP_KERNEL);
if (!data) {
dev_err(dev, "Out of memory\n");
if (!data)
return -ENOMEM;
}
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!devm_request_region(dev, res->start, resource_size(res),
......
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