Commit 89a2a93f authored by Shrirang Bagul's avatar Shrirang Bagul Committed by Jonathan Cameron

iio: st_accel: Support sensor i2c probe using acpi

Add support to probe st_accel sensors on i2c bus using ACPI. Compatible
strings are not avaialable on ACPI based systems.
Signed-off-by: default avatarShrirang Bagul <shrirang.bagul@canonical.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 3dc59262
...@@ -14,6 +14,24 @@ ...@@ -14,6 +14,24 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/iio/common/st_sensors.h> #include <linux/iio/common/st_sensors.h>
enum st_accel_type {
LSM303DLH,
LSM303DLHC,
LIS3DH,
LSM330D,
LSM330DL,
LSM330DLC,
LIS331DLH,
LSM303DL,
LSM303DLM,
LSM330,
LSM303AGR,
LIS2DH12,
LIS3L02DQ,
LNG2DM,
ST_ACCEL_MAX,
};
#define H3LIS331DL_DRIVER_NAME "h3lis331dl_accel" #define H3LIS331DL_DRIVER_NAME "h3lis331dl_accel"
#define LIS3LV02DL_ACCEL_DEV_NAME "lis3lv02dl_accel" #define LIS3LV02DL_ACCEL_DEV_NAME "lis3lv02dl_accel"
#define LSM303DLHC_ACCEL_DEV_NAME "lsm303dlhc_accel" #define LSM303DLHC_ACCEL_DEV_NAME "lsm303dlhc_accel"
......
...@@ -11,6 +11,7 @@ ...@@ -11,6 +11,7 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/i2c.h> #include <linux/i2c.h>
#include <linux/iio/iio.h> #include <linux/iio/iio.h>
...@@ -95,25 +96,67 @@ MODULE_DEVICE_TABLE(of, st_accel_of_match); ...@@ -95,25 +96,67 @@ MODULE_DEVICE_TABLE(of, st_accel_of_match);
#define st_accel_of_match NULL #define st_accel_of_match NULL
#endif #endif
#ifdef CONFIG_ACPI
static const struct acpi_device_id st_accel_acpi_match[] = {
{"SMO8A90", LNG2DM},
{ },
};
MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
#else
#define st_accel_acpi_match NULL
#endif
static const struct i2c_device_id st_accel_id_table[] = {
{ LSM303DLH_ACCEL_DEV_NAME, LSM303DLH },
{ LSM303DLHC_ACCEL_DEV_NAME, LSM303DLHC },
{ LIS3DH_ACCEL_DEV_NAME, LIS3DH },
{ LSM330D_ACCEL_DEV_NAME, LSM330D },
{ LSM330DL_ACCEL_DEV_NAME, LSM330DL },
{ LSM330DLC_ACCEL_DEV_NAME, LSM330DLC },
{ LIS331DLH_ACCEL_DEV_NAME, LIS331DLH },
{ LSM303DL_ACCEL_DEV_NAME, LSM303DL },
{ LSM303DLM_ACCEL_DEV_NAME, LSM303DLM },
{ LSM330_ACCEL_DEV_NAME, LSM330 },
{ LSM303AGR_ACCEL_DEV_NAME, LSM303AGR },
{ LIS2DH12_ACCEL_DEV_NAME, LIS2DH12 },
{ LIS3L02DQ_ACCEL_DEV_NAME, LIS3L02DQ },
{ LNG2DM_ACCEL_DEV_NAME, LNG2DM },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
static int st_accel_i2c_probe(struct i2c_client *client, static int st_accel_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id) const struct i2c_device_id *id)
{ {
struct iio_dev *indio_dev; struct iio_dev *indio_dev;
struct st_sensor_data *adata; struct st_sensor_data *adata;
int err; int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
if (!indio_dev) if (!indio_dev)
return -ENOMEM; return -ENOMEM;
adata = iio_priv(indio_dev); adata = iio_priv(indio_dev);
st_sensors_of_i2c_probe(client, st_accel_of_match);
if (client->dev.of_node) {
st_sensors_of_i2c_probe(client, st_accel_of_match);
} else if (ACPI_HANDLE(&client->dev)) {
ret = st_sensors_match_acpi_device(&client->dev);
if ((ret < 0) || (ret >= ST_ACCEL_MAX))
return -ENODEV;
strncpy(client->name, st_accel_id_table[ret].name,
sizeof(client->name));
client->name[sizeof(client->name) - 1] = '\0';
} else if (!id)
return -ENODEV;
st_sensors_i2c_configure(indio_dev, client, adata); st_sensors_i2c_configure(indio_dev, client, adata);
err = st_accel_common_probe(indio_dev); ret = st_accel_common_probe(indio_dev);
if (err < 0) if (ret < 0)
return err; return ret;
return 0; return 0;
} }
...@@ -125,29 +168,11 @@ static int st_accel_i2c_remove(struct i2c_client *client) ...@@ -125,29 +168,11 @@ static int st_accel_i2c_remove(struct i2c_client *client)
return 0; return 0;
} }
static const struct i2c_device_id st_accel_id_table[] = {
{ LSM303DLH_ACCEL_DEV_NAME },
{ LSM303DLHC_ACCEL_DEV_NAME },
{ LIS3DH_ACCEL_DEV_NAME },
{ LSM330D_ACCEL_DEV_NAME },
{ LSM330DL_ACCEL_DEV_NAME },
{ LSM330DLC_ACCEL_DEV_NAME },
{ LIS331DLH_ACCEL_DEV_NAME },
{ LSM303DL_ACCEL_DEV_NAME },
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
{ LSM303AGR_ACCEL_DEV_NAME },
{ LIS2DH12_ACCEL_DEV_NAME },
{ LIS3L02DQ_ACCEL_DEV_NAME },
{ LNG2DM_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
static struct i2c_driver st_accel_driver = { static struct i2c_driver st_accel_driver = {
.driver = { .driver = {
.name = "st-accel-i2c", .name = "st-accel-i2c",
.of_match_table = of_match_ptr(st_accel_of_match), .of_match_table = of_match_ptr(st_accel_of_match),
.acpi_match_table = ACPI_PTR(st_accel_acpi_match),
}, },
.probe = st_accel_i2c_probe, .probe = st_accel_i2c_probe,
.remove = st_accel_i2c_remove, .remove = st_accel_i2c_remove,
......
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