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Commit d65a5102 authored by Guenter Roeck's avatar Guenter Roeck
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hwmon: (nct7904) Convert to use new hwmon registration API 

Simplify code and reduce code size by using the new hwmon
registration API.
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent a584287c
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Showing with 270 additions and 285 deletions
drivers/hwmon/nct7904.c
View file @ d65a5102
......@@ -21,7 +21,6 @@
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#define VENDOR_ID_REG 0x7A /* Any bank */
#define NUVOTON_ID 0x50
......@@ -153,16 +152,17 @@ static int nct7904_write_reg(struct nct7904_data *data,
return ret;
}
/* FANIN ATTR */
static ssize_t show_fan(struct device *dev,
struct device_attribute *devattr, char *buf)
static int nct7904_read_fan(struct device *dev, u32 attr, int channel,
long *val)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
unsigned int cnt, rpm;
int ret;
unsigned cnt, rpm;
ret = nct7904_read_reg16(data, BANK_0, FANIN1_HV_REG + index * 2);
switch(attr) {
case hwmon_fan_input:
ret = nct7904_read_reg16(data, BANK_0,
FANIN1_HV_REG + channel * 2);
if (ret < 0)
return ret;
cnt = ((ret & 0xff00) >> 3) | (ret & 0x1f);
......@@ -170,64 +170,40 @@ static ssize_t show_fan(struct device *dev,
rpm = 0;
else
rpm = 1350000 / cnt;
return sprintf(buf, "%u\n", rpm);
*val = rpm;
return 0;
default:
return -EOPNOTSUPP;
}
}
static umode_t nct7904_fanin_is_visible(struct kobject *kobj,
struct attribute *a, int n)
static umode_t nct7904_fan_is_visible(const void *_data, u32 attr, int channel)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct7904_data *data = dev_get_drvdata(dev);
const struct nct7904_data *data = _data;
if (data->fanin_mask & (1 << n))
return a->mode;
if (attr == hwmon_fan_input && data->fanin_mask & (1 << channel))
return S_IRUGO;
return 0;
}
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4);
static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 5);
static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 6);
static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan, NULL, 7);
static SENSOR_DEVICE_ATTR(fan9_input, S_IRUGO, show_fan, NULL, 8);
static SENSOR_DEVICE_ATTR(fan10_input, S_IRUGO, show_fan, NULL, 9);
static SENSOR_DEVICE_ATTR(fan11_input, S_IRUGO, show_fan, NULL, 10);
static SENSOR_DEVICE_ATTR(fan12_input, S_IRUGO, show_fan, NULL, 11);
static struct attribute *nct7904_fanin_attrs[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan2_input.dev_attr.attr,
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan4_input.dev_attr.attr,
&sensor_dev_attr_fan5_input.dev_attr.attr,
&sensor_dev_attr_fan6_input.dev_attr.attr,
&sensor_dev_attr_fan7_input.dev_attr.attr,
&sensor_dev_attr_fan8_input.dev_attr.attr,
&sensor_dev_attr_fan9_input.dev_attr.attr,
&sensor_dev_attr_fan10_input.dev_attr.attr,
&sensor_dev_attr_fan11_input.dev_attr.attr,
&sensor_dev_attr_fan12_input.dev_attr.attr,
NULL
static u8 nct7904_chan_to_index[] = {
0, /* Not used */
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
18, 19, 20, 16
};
static const struct attribute_group nct7904_fanin_group = {
.attrs = nct7904_fanin_attrs,
.is_visible = nct7904_fanin_is_visible,
};
/* VSEN ATTR */
static ssize_t show_voltage(struct device *dev,
struct device_attribute *devattr, char *buf)
static int nct7904_read_in(struct device *dev, u32 attr, int channel,
long *val)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
int ret;
int volt;
int ret, volt, index;
ret = nct7904_read_reg16(data, BANK_0, VSEN1_HV_REG + index * 2);
index = nct7904_chan_to_index[channel];
switch(attr) {
case hwmon_in_input:
ret = nct7904_read_reg16(data, BANK_0,
VSEN1_HV_REG + index * 2);
if (ret < 0)
return ret;
volt = ((ret & 0xff00) >> 5) | (ret & 0x7);
......@@ -235,259 +211,171 @@ static ssize_t show_voltage(struct device *dev,
volt *= 2; /* 0.002V scale */
else
volt *= 6; /* 0.006V scale */
*val = volt;
return 0;
default:
return -EOPNOTSUPP;
}
}
static umode_t nct7904_in_is_visible(const void *_data, u32 attr, int channel)
{
const struct nct7904_data *data = _data;
int index = nct7904_chan_to_index[channel];
return sprintf(buf, "%d\n", volt);
if (channel > 0 && attr == hwmon_in_input &&
(data->vsen_mask & BIT(index)))
return S_IRUGO;
return 0;
}
static ssize_t show_ltemp(struct device *dev,
struct device_attribute *devattr, char *buf)
static int nct7904_read_temp(struct device *dev, u32 attr, int channel,
long *val)
{
struct nct7904_data *data = dev_get_drvdata(dev);
int ret;
int temp;
int ret, temp;
switch(attr) {
case hwmon_temp_input:
if (channel == 0)
ret = nct7904_read_reg16(data, BANK_0, LTD_HV_REG);
else
ret = nct7904_read_reg16(data, BANK_0,
T_CPU1_HV_REG + (channel - 1) * 2);
if (ret < 0)
return ret;
temp = ((ret & 0xff00) >> 5) | (ret & 0x7);
temp = sign_extend32(temp, 10) * 125;
return sprintf(buf, "%d\n", temp);
*val = sign_extend32(temp, 10) * 125;
return 0;
default:
return -EOPNOTSUPP;
}
}
static umode_t nct7904_vsen_is_visible(struct kobject *kobj,
struct attribute *a, int n)
static umode_t nct7904_temp_is_visible(const void *_data, u32 attr, int channel)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct7904_data *data = dev_get_drvdata(dev);
const struct nct7904_data *data = _data;
if (attr == hwmon_temp_input) {
if (channel == 0) {
if (data->vsen_mask & BIT(17))
return S_IRUGO;
} else {
if (data->tcpu_mask & BIT(channel - 1))
return S_IRUGO;
}
}
if (data->vsen_mask & (1 << n))
return a->mode;
return 0;
}
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 0);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 1);
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_voltage, NULL, 2);
static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_voltage, NULL, 3);
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 4);
static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 5);
static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 6);
static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_voltage, NULL, 7);
static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_voltage, NULL, 8);
static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_voltage, NULL, 9);
static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_voltage, NULL, 10);
static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_voltage, NULL, 11);
static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_voltage, NULL, 12);
static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_voltage, NULL, 13);
/*
* Next 3 voltage sensors have specific names in the Nuvoton doc
* (3VDD, VBAT, 3VSB) but we use vacant numbers for them.
*/
static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_voltage, NULL, 14);
static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_voltage, NULL, 15);
static SENSOR_DEVICE_ATTR(in20_input, S_IRUGO, show_voltage, NULL, 16);
/* This is not a voltage, but a local temperature sensor. */
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_ltemp, NULL, 0);
static SENSOR_DEVICE_ATTR(in17_input, S_IRUGO, show_voltage, NULL, 18);
static SENSOR_DEVICE_ATTR(in18_input, S_IRUGO, show_voltage, NULL, 19);
static SENSOR_DEVICE_ATTR(in19_input, S_IRUGO, show_voltage, NULL, 20);
static struct attribute *nct7904_vsen_attrs[] = {
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in2_input.dev_attr.attr,
&sensor_dev_attr_in3_input.dev_attr.attr,
&sensor_dev_attr_in4_input.dev_attr.attr,
&sensor_dev_attr_in5_input.dev_attr.attr,
&sensor_dev_attr_in6_input.dev_attr.attr,
&sensor_dev_attr_in7_input.dev_attr.attr,
&sensor_dev_attr_in8_input.dev_attr.attr,
&sensor_dev_attr_in9_input.dev_attr.attr,
&sensor_dev_attr_in10_input.dev_attr.attr,
&sensor_dev_attr_in11_input.dev_attr.attr,
&sensor_dev_attr_in12_input.dev_attr.attr,
&sensor_dev_attr_in13_input.dev_attr.attr,
&sensor_dev_attr_in14_input.dev_attr.attr,
&sensor_dev_attr_in15_input.dev_attr.attr,
&sensor_dev_attr_in16_input.dev_attr.attr,
&sensor_dev_attr_in20_input.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_in17_input.dev_attr.attr,
&sensor_dev_attr_in18_input.dev_attr.attr,
&sensor_dev_attr_in19_input.dev_attr.attr,
NULL
};
static const struct attribute_group nct7904_vsen_group = {
.attrs = nct7904_vsen_attrs,
.is_visible = nct7904_vsen_is_visible,
};
/* CPU_TEMP ATTR */
static ssize_t show_tcpu(struct device *dev,
struct device_attribute *devattr, char *buf)
static int nct7904_read_pwm(struct device *dev, u32 attr, int channel,
long *val)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
int ret;
int temp;
ret = nct7904_read_reg16(data, BANK_0, T_CPU1_HV_REG + index * 2);
switch(attr) {
case hwmon_pwm_input:
ret = nct7904_read_reg(data, BANK_3, FANCTL1_OUT_REG + channel);
if (ret < 0)
return ret;
*val = ret;
return 0;
case hwmon_pwm_enable:
ret = nct7904_read_reg(data, BANK_3, FANCTL1_FMR_REG + channel);
if (ret < 0)
return ret;
temp = ((ret & 0xff00) >> 5) | (ret & 0x7);
temp = sign_extend32(temp, 10) * 125;
return sprintf(buf, "%d\n", temp);
}
static umode_t nct7904_tcpu_is_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nct7904_data *data = dev_get_drvdata(dev);
if (data->tcpu_mask & (1 << n))
return a->mode;
*val = ret ? 2 : 1;
return 0;
default:
return -EOPNOTSUPP;
}
}
/* "temp1_input" reserved for local temp */
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_tcpu, NULL, 0);
static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_tcpu, NULL, 1);
static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_tcpu, NULL, 2);
static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_tcpu, NULL, 3);
static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_tcpu, NULL, 4);
static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_tcpu, NULL, 5);
static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_tcpu, NULL, 6);
static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_tcpu, NULL, 7);
static struct attribute *nct7904_tcpu_attrs[] = {
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp4_input.dev_attr.attr,
&sensor_dev_attr_temp5_input.dev_attr.attr,
&sensor_dev_attr_temp6_input.dev_attr.attr,
&sensor_dev_attr_temp7_input.dev_attr.attr,
&sensor_dev_attr_temp8_input.dev_attr.attr,
&sensor_dev_attr_temp9_input.dev_attr.attr,
NULL
};
static const struct attribute_group nct7904_tcpu_group = {
.attrs = nct7904_tcpu_attrs,
.is_visible = nct7904_tcpu_is_visible,
};
/* PWM ATTR */
static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
static int nct7904_write_pwm(struct device *dev, u32 attr, int channel,
long val)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
unsigned long val;
int ret;
if (kstrtoul(buf, 10, &val) < 0)
switch(attr) {
case hwmon_pwm_input:
if (val < 0 || val > 255)
return -EINVAL;
if (val > 255)
ret = nct7904_write_reg(data, BANK_3, FANCTL1_OUT_REG + channel,
val);
return ret;
case hwmon_pwm_enable:
if (val < 1 || val > 2 ||
(val == 2 && !data->fan_mode[channel]))
return -EINVAL;
ret = nct7904_write_reg(data, BANK_3, FANCTL1_OUT_REG + index, val);
return ret ? ret : count;
ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + channel,
val == 2 ? data->fan_mode[channel] : 0);
return ret;
default:
return -EOPNOTSUPP;
}
}
static ssize_t show_pwm(struct device *dev,
struct device_attribute *devattr, char *buf)
static umode_t nct7904_pwm_is_visible(const void *_data, u32 attr, int channel)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
int val;
val = nct7904_read_reg(data, BANK_3, FANCTL1_OUT_REG + index);
if (val < 0)
return val;
return sprintf(buf, "%d\n", val);
switch(attr) {
case hwmon_pwm_input:
case hwmon_pwm_enable:
return S_IRUGO | S_IWUSR;
default:
return 0;
}
}
static ssize_t store_enable(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
static int nct7904_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
unsigned long val;
int ret;
if (kstrtoul(buf, 10, &val) < 0)
return -EINVAL;
if (val < 1 || val > 2 || (val == 2 && !data->fan_mode[index]))
return -EINVAL;
ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + index,
val == 2 ? data->fan_mode[index] : 0);
return ret ? ret : count;
switch (type) {
case hwmon_in:
return nct7904_read_in(dev, attr, channel, val);
case hwmon_fan:
return nct7904_read_fan(dev, attr, channel, val);
case hwmon_pwm:
return nct7904_read_pwm(dev, attr, channel, val);
case hwmon_temp:
return nct7904_read_temp(dev, attr, channel, val);
default:
return -EOPNOTSUPP;
}
}
/* Return 1 for manual mode or 2 for SmartFan mode */
static ssize_t show_enable(struct device *dev,
struct device_attribute *devattr, char *buf)
static int nct7904_write(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long val)
{
int index = to_sensor_dev_attr(devattr)->index;
struct nct7904_data *data = dev_get_drvdata(dev);
int val;
val = nct7904_read_reg(data, BANK_3, FANCTL1_FMR_REG + index);
if (val < 0)
return val;
return sprintf(buf, "%d\n", val ? 2 : 1);
switch (type) {
case hwmon_pwm:
return nct7904_write_pwm(dev, attr, channel, val);
default:
return -EOPNOTSUPP;
}
}
/* 2 attributes per channel: pwm and mode */
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 1);
static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 2);
static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 2);
static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR,
show_pwm, store_pwm, 3);
static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR,
show_enable, store_enable, 3);
static struct attribute *nct7904_fanctl_attrs[] = {
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
&sensor_dev_attr_pwm4_enable.dev_attr.attr,
NULL
};
static const struct attribute_group nct7904_fanctl_group = {
.attrs = nct7904_fanctl_attrs,
};
static const struct attribute_group *nct7904_groups[] = {
&nct7904_fanin_group,
&nct7904_vsen_group,
&nct7904_tcpu_group,
&nct7904_fanctl_group,
NULL
};
static umode_t nct7904_is_visible(const void *data,
enum hwmon_sensor_types type,
u32 attr, int channel)
{
switch (type) {
case hwmon_in:
return nct7904_in_is_visible(data, attr, channel);
case hwmon_fan:
return nct7904_fan_is_visible(data, attr, channel);
case hwmon_pwm:
return nct7904_pwm_is_visible(data, attr, channel);
case hwmon_temp:
return nct7904_temp_is_visible(data, attr, channel);
default:
return 0;
}
}
/* Return 0 if detection is successful, -ENODEV otherwise */
static int nct7904_detect(struct i2c_client *client,
......@@ -512,6 +400,103 @@ static int nct7904_detect(struct i2c_client *client,
return 0;
}
static const u32 nct7904_in_config[] = {
HWMON_I_INPUT, /* dummy, skipped in is_visible */
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
0
};
static const struct hwmon_channel_info nct7904_in = {
.type = hwmon_in,
.config = nct7904_in_config,
};
static const u32 nct7904_fan_config[] = {
HWMON_F_INPUT,
HWMON_F_INPUT,
HWMON_F_INPUT,
HWMON_F_INPUT,
HWMON_F_INPUT,
HWMON_F_INPUT,
HWMON_F_INPUT,
HWMON_F_INPUT,
0
};
static const struct hwmon_channel_info nct7904_fan = {
.type = hwmon_fan,
.config = nct7904_fan_config,
};
static const u32 nct7904_pwm_config[] = {
HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
0
};
static const struct hwmon_channel_info nct7904_pwm = {
.type = hwmon_pwm,
.config = nct7904_pwm_config,
};
static const u32 nct7904_temp_config[] = {
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
HWMON_T_INPUT,
0
};
static const struct hwmon_channel_info nct7904_temp = {
.type = hwmon_temp,
.config = nct7904_temp_config,
};
static const struct hwmon_channel_info *nct7904_info[] = {
&nct7904_in,
&nct7904_fan,
&nct7904_pwm,
&nct7904_temp,
NULL
};
static const struct hwmon_ops nct7904_hwmon_ops = {
.is_visible = nct7904_is_visible,
.read = nct7904_read,
.write = nct7904_write,
};
static const struct hwmon_chip_info nct7904_chip_info = {
.ops = &nct7904_hwmon_ops,
.info = nct7904_info,
};
static int nct7904_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
......@@ -566,8 +551,8 @@ static int nct7904_probe(struct i2c_client *client,
}
hwmon_dev =
devm_hwmon_device_register_with_groups(dev, client->name, data,
nct7904_groups);
devm_hwmon_device_register_with_info(dev, client->name, data,
&nct7904_chip_info, NULL);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
......
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