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iio: common: st_sensors: move st_sensors_of_i2c_probe() in common code

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Move st_sensors_of_i2c_probe() in st_sensors_core and rename it in
st_sensors_of_name_probe(). That change is necessary to add device-tree
support in spi code otherwise the rest of the autodetection will fail
since spi->modalias (and indio_dev->name) will be set using compatible
string value that differs from standard sensor name

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lorenzo Bianconi 2017-06-20 21:52:08 +02:00 committed by Jonathan Cameron
parent 1371856416
commit 250bbbdbed
8 changed files with 51 additions and 43 deletions
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3
drivers/iio/accel/st_accel_i2c.c
View File

@ -144,7 +144,8 @@ static int st_accel_i2c_probe(struct i2c_client *client,
adata = iio_priv(indio_dev);
if (client->dev.of_node) {
st_sensors_of_i2c_probe(client, st_accel_of_match);
st_sensors_of_name_probe(&client->dev, st_accel_of_match,
client->name, sizeof(client->name));
} else if (ACPI_HANDLE(&client->dev)) {
ret = st_sensors_match_acpi_device(&client->dev);
if ((ret < 0) || (ret >= ST_ACCEL_MAX))

31
drivers/iio/common/st_sensors/st_sensors_core.c
View File

@ -15,6 +15,7 @@
#include <linux/iio/iio.h>
#include <linux/regulator/consumer.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/unaligned.h>
#include <linux/iio/common/st_sensors.h>
@ -345,6 +346,36 @@ static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev,
return pdata;
}
/**
* st_sensors_of_name_probe() - device tree probe for ST sensor name
* @dev: driver model representation of the device.
* @match: the OF match table for the device, containing compatible strings
* but also a .data field with the corresponding internal kernel name
* used by this sensor.
* @name: device name buffer reference.
* @len: device name buffer length.
*
* In effect this function matches a compatible string to an internal kernel
* name for a certain sensor device, so that the rest of the autodetection can
* rely on that name from this point on. I2C/SPI devices will be renamed
* to match the internal kernel convention.
*/
void st_sensors_of_name_probe(struct device *dev,
const struct of_device_id *match,
char *name, int len)
{
const struct of_device_id *of_id;
of_id = of_match_device(match, dev);
if (!of_id || !of_id->data)
return;
/* The name from the OF match takes precedence if present */
strncpy(name, of_id->data, len);
name[len - 1] = '\0';
}
EXPORT_SYMBOL(st_sensors_of_name_probe);
#else
static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev,
struct st_sensors_platform_data *defdata)

29
drivers/iio/common/st_sensors/st_sensors_i2c.c
View File

@ -79,35 +79,6 @@ void st_sensors_i2c_configure(struct iio_dev *indio_dev,
}
EXPORT_SYMBOL(st_sensors_i2c_configure);
#ifdef CONFIG_OF
/**
* st_sensors_of_i2c_probe() - device tree probe for ST I2C sensors
* @client: the I2C client device for the sensor
* @match: the OF match table for the device, containing compatible strings
* but also a .data field with the corresponding internal kernel name
* used by this sensor.
*
* In effect this function matches a compatible string to an internal kernel
* name for a certain sensor device, so that the rest of the autodetection can
* rely on that name from this point on. I2C client devices will be renamed
* to match the internal kernel convention.
*/
void st_sensors_of_i2c_probe(struct i2c_client *client,
const struct of_device_id *match)
{
const struct of_device_id *of_id;
of_id = of_match_device(match, &client->dev);
if (!of_id)
return;
/* The name from the OF match takes precedence if present */
strncpy(client->name, of_id->data, sizeof(client->name));
client->name[sizeof(client->name) - 1] = '\0';
}
EXPORT_SYMBOL(st_sensors_of_i2c_probe);
#endif
#ifdef CONFIG_ACPI
int st_sensors_match_acpi_device(struct device *dev)
{

3
drivers/iio/gyro/st_gyro_i2c.c
View File

@ -75,7 +75,8 @@ static int st_gyro_i2c_probe(struct i2c_client *client,
return -ENOMEM;
gdata = iio_priv(indio_dev);
st_sensors_of_i2c_probe(client, st_gyro_of_match);
st_sensors_of_name_probe(&client->dev, st_gyro_of_match,
client->name, sizeof(client->name));
st_sensors_i2c_configure(indio_dev, client, gdata);

3
drivers/iio/magnetometer/st_magn_i2c.c
View File

@ -59,7 +59,8 @@ static int st_magn_i2c_probe(struct i2c_client *client,
return -ENOMEM;
mdata = iio_priv(indio_dev);
st_sensors_of_i2c_probe(client, st_magn_of_match);
st_sensors_of_name_probe(&client->dev, st_magn_of_match,
client->name, sizeof(client->name));
st_sensors_i2c_configure(indio_dev, client, mdata);

3
drivers/iio/pressure/st_pressure_i2c.c
View File

@ -77,7 +77,8 @@ static int st_press_i2c_probe(struct i2c_client *client,
press_data = iio_priv(indio_dev);
if (client->dev.of_node) {
st_sensors_of_i2c_probe(client, st_press_of_match);
st_sensors_of_name_probe(&client->dev, st_press_of_match,
client->name, sizeof(client->name));
} else if (ACPI_HANDLE(&client->dev)) {
ret = st_sensors_match_acpi_device(&client->dev);
if ((ret < 0) || (ret >= ST_PRESS_MAX))

12
include/linux/iio/common/st_sensors.h
View File

@ -325,4 +325,16 @@ ssize_t st_sensors_sysfs_sampling_frequency_avail(struct device *dev,
ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
struct device_attribute *attr, char *buf);
#ifdef CONFIG_OF
void st_sensors_of_name_probe(struct device *dev,
const struct of_device_id *match,
char *name, int len);
#else
static inline void st_sensors_of_name_probe(struct device *dev,
const struct of_device_id *match,
char *name, int len)
{
}
#endif
#endif /* ST_SENSORS_H */

10
include/linux/iio/common/st_sensors_i2c.h
View File

@ -18,16 +18,6 @@
void st_sensors_i2c_configure(struct iio_dev *indio_dev,
struct i2c_client *client, struct st_sensor_data *sdata);
#ifdef CONFIG_OF
void st_sensors_of_i2c_probe(struct i2c_client *client,
const struct of_device_id *match);
#else
static inline void st_sensors_of_i2c_probe(struct i2c_client *client,
const struct of_device_id *match)
{
}
#endif
#ifdef CONFIG_ACPI
int st_sensors_match_acpi_device(struct device *dev);
#else