The idea behind it, is that all devm_ calls in ST sensors are bound to the
parent device object.
However, the reference to that object is kept on both the st_sensor_data
struct and the IIO object parent (indio_dev->dev.parent).
This change only adds a bit consistency and uses the reference stored on
indio_dev->dev.parent, to enforce the assumption that all ST sensors' devm_
calls are bound to the same reference as the one store on st_sensor_data.
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Alexandru Ardelean <[email protected]>
---
drivers/iio/accel/st_accel_core.c | 6 +++---
drivers/iio/common/st_sensors/st_sensors_i2c.c | 1 -
drivers/iio/common/st_sensors/st_sensors_spi.c | 1 -
drivers/iio/common/st_sensors/st_sensors_trigger.c | 8 +++++---
drivers/iio/gyro/st_gyro_core.c | 2 +-
drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c | 2 --
drivers/iio/magnetometer/st_magn_core.c | 4 ++--
drivers/iio/pressure/st_pressure_core.c | 2 +-
include/linux/iio/common/st_sensors.h | 2 --
9 files changed, 12 insertions(+), 16 deletions(-)
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 01695abd9d2f..31ea19d0ba71 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -1210,7 +1210,7 @@ static int apply_acpi_orientation(struct iio_dev *indio_dev)
};
- adev = ACPI_COMPANION(adata->dev);
+ adev = ACPI_COMPANION(indio_dev->dev.parent);
if (!adev)
return 0;
@@ -1334,8 +1334,8 @@ EXPORT_SYMBOL(st_accel_get_settings);
int st_accel_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *adata = iio_priv(indio_dev);
- struct st_sensors_platform_data *pdata = dev_get_platdata(adata->dev);
struct device *parent = indio_dev->dev.parent;
+ struct st_sensors_platform_data *pdata = dev_get_platdata(parent);
int err;
indio_dev->modes = INDIO_DIRECT_MODE;
@@ -1355,7 +1355,7 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
*/
err = apply_acpi_orientation(indio_dev);
if (err) {
- err = iio_read_mount_matrix(adata->dev, &adata->mount_matrix);
+ err = iio_read_mount_matrix(parent, &adata->mount_matrix);
if (err)
return err;
}
diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c
index b3ff88700866..18bd3c3d99bc 100644
--- a/drivers/iio/common/st_sensors/st_sensors_i2c.c
+++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c
@@ -57,7 +57,6 @@ int st_sensors_i2c_configure(struct iio_dev *indio_dev,
indio_dev->name = client->name;
- sdata->dev = &client->dev;
sdata->irq = client->irq;
return 0;
diff --git a/drivers/iio/common/st_sensors/st_sensors_spi.c b/drivers/iio/common/st_sensors/st_sensors_spi.c
index 0d1d66c77cd8..7c60050e90dc 100644
--- a/drivers/iio/common/st_sensors/st_sensors_spi.c
+++ b/drivers/iio/common/st_sensors/st_sensors_spi.c
@@ -109,7 +109,6 @@ int st_sensors_spi_configure(struct iio_dev *indio_dev,
indio_dev->name = spi->modalias;
- sdata->dev = &spi->dev;
sdata->irq = spi->irq;
return 0;
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index d022157b66a2..392d74449886 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -42,7 +42,8 @@ static bool st_sensors_new_samples_available(struct iio_dev *indio_dev,
sdata->sensor_settings->drdy_irq.stat_drdy.addr,
&status);
if (ret < 0) {
- dev_err(sdata->dev, "error checking samples available\n");
+ dev_err(indio_dev->dev.parent,
+ "error checking samples available\n");
return false;
}
@@ -87,7 +88,7 @@ static irqreturn_t st_sensors_irq_thread(int irq, void *p)
st_sensors_new_samples_available(indio_dev, sdata)) {
iio_trigger_poll_chained(p);
} else {
- dev_dbg(sdata->dev, "spurious IRQ\n");
+ dev_dbg(indio_dev->dev.parent, "spurious IRQ\n");
return IRQ_NONE;
}
@@ -107,7 +108,8 @@ static irqreturn_t st_sensors_irq_thread(int irq, void *p)
*/
while (sdata->hw_irq_trigger &&
st_sensors_new_samples_available(indio_dev, sdata)) {
- dev_dbg(sdata->dev, "more samples came in during polling\n");
+ dev_dbg(indio_dev->dev.parent,
+ "more samples came in during polling\n");
sdata->hw_timestamp = iio_get_time_ns(indio_dev);
iio_trigger_poll_chained(p);
}
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index 3609082a6778..201050b76fe5 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -492,7 +492,7 @@ int st_gyro_common_probe(struct iio_dev *indio_dev)
indio_dev->channels = gdata->sensor_settings->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
- err = iio_read_mount_matrix(gdata->dev, &gdata->mount_matrix);
+ err = iio_read_mount_matrix(parent, &gdata->mount_matrix);
if (err)
return err;
diff --git a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
index d276f663fe57..b3a43a3b04ff 100644
--- a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
+++ b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
@@ -90,7 +90,6 @@ static int st_lsm9ds0_probe_accel(struct st_lsm9ds0 *lsm9ds0, struct regmap *reg
data = iio_priv(lsm9ds0->accel);
data->sensor_settings = (struct st_sensor_settings *)settings;
- data->dev = dev;
data->irq = lsm9ds0->irq;
data->regmap = regmap;
data->vdd = lsm9ds0->vdd;
@@ -119,7 +118,6 @@ static int st_lsm9ds0_probe_magn(struct st_lsm9ds0 *lsm9ds0, struct regmap *regm
data = iio_priv(lsm9ds0->magn);
data->sensor_settings = (struct st_sensor_settings *)settings;
- data->dev = dev;
data->irq = lsm9ds0->irq;
data->regmap = regmap;
data->vdd = lsm9ds0->vdd;
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 1458906a3765..0806a1e65ce4 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -611,8 +611,8 @@ EXPORT_SYMBOL(st_magn_get_settings);
int st_magn_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *mdata = iio_priv(indio_dev);
- struct st_sensors_platform_data *pdata = dev_get_platdata(mdata->dev);
struct device *parent = indio_dev->dev.parent;
+ struct st_sensors_platform_data *pdata = dev_get_platdata(parent);
int err;
indio_dev->modes = INDIO_DIRECT_MODE;
@@ -626,7 +626,7 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
indio_dev->channels = mdata->sensor_settings->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
- err = iio_read_mount_matrix(mdata->dev, &mdata->mount_matrix);
+ err = iio_read_mount_matrix(parent, &mdata->mount_matrix);
if (err)
return err;
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index cebcc1d93d0b..26a1ee43d56e 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -677,8 +677,8 @@ EXPORT_SYMBOL(st_press_get_settings);
int st_press_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *press_data = iio_priv(indio_dev);
- struct st_sensors_platform_data *pdata = dev_get_platdata(press_data->dev);
struct device *parent = indio_dev->dev.parent;
+ struct st_sensors_platform_data *pdata = dev_get_platdata(parent);
int err;
indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index d17ae1e5ca19..22f67845cdd3 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -220,7 +220,6 @@ struct st_sensor_settings {
/**
* struct st_sensor_data - ST sensor device status
- * @dev: Pointer to instance of struct device (I2C or SPI).
* @trig: The trigger in use by the core driver.
* @mount_matrix: The mounting matrix of the sensor.
* @sensor_settings: Pointer to the specific sensor settings in use.
@@ -240,7 +239,6 @@ struct st_sensor_settings {
* @buffer_data: Data used by buffer part.
*/
struct st_sensor_data {
- struct device *dev;
struct iio_trigger *trig;
struct iio_mount_matrix mount_matrix;
struct st_sensor_settings *sensor_settings;
--
2.31.1
On Mon, Aug 23, 2021 at 1:22 PM Alexandru Ardelean
<[email protected]> wrote:
> The idea behind it, is that all devm_ calls in ST sensors are bound to the
> parent device object.
>
> However, the reference to that object is kept on both the st_sensor_data
> struct and the IIO object parent (indio_dev->dev.parent).
>
> This change only adds a bit consistency and uses the reference stored on
> indio_dev->dev.parent, to enforce the assumption that all ST sensors' devm_
> calls are bound to the same reference as the one store on st_sensor_data.
>
> Reviewed-by: Andy Shevchenko <[email protected]>
> Signed-off-by: Alexandru Ardelean <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Yours,
Linus Walleij