On Mon, 25 Mar 2024 15:33:54 +0000
Lothar Rubusch <l.rubusch@xxxxxxxxx> wrote:
> Add a function pointer argument to the probe function in
> the core module to provide a way to pre-configure the bus.
>
> The passed setup function can be prepared in the bus
> specific spi or the i2c module, or NULL otherwise. It shall
> then be executed in the bus independent core module.
Wrap descriptions at 75 chars, not around 60 as you've done here.
>
> Signed-off-by: Lothar Rubusch <l.rubusch@xxxxxxxxx>
> ---
> drivers/iio/accel/adxl345.h | 3 ++-
> drivers/iio/accel/adxl345_core.c | 10 +++++++++-
> drivers/iio/accel/adxl345_i2c.c | 2 +-
> drivers/iio/accel/adxl345_spi.c | 2 +-
> 4 files changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/iio/accel/adxl345.h b/drivers/iio/accel/adxl345.h
> index ee169fed4..620a2e0f0 100644
> --- a/drivers/iio/accel/adxl345.h
> +++ b/drivers/iio/accel/adxl345.h
> @@ -59,6 +59,7 @@ struct adxl345_chip_info {
> int uscale;
> };
>
> -int adxl345_core_probe(struct device *dev, struct regmap *regmap);
> +int adxl345_core_probe(struct device *dev, struct regmap *regmap,
> + int (*setup)(struct device*, struct regmap*));
>
> #endif /* _ADXL345_H_ */
> diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
> index eba9c048a..476d729bc 100644
> --- a/drivers/iio/accel/adxl345_core.c
> +++ b/drivers/iio/accel/adxl345_core.c
> @@ -168,13 +168,21 @@ static void adxl345_powerdown(void *regmap)
> regmap_write(regmap, ADXL345_REG_POWER_CTL, ADXL345_POWER_CTL_STANDBY);
> }
>
> -int adxl345_core_probe(struct device *dev, struct regmap *regmap)
> +int adxl345_core_probe(struct device *dev, struct regmap *regmap,
> + int (*setup)(struct device*, struct regmap*))
Wrap as per the header definition above. (align just after opening bracket).
> {
> struct adxl345_data *data;
> struct iio_dev *indio_dev;
> u32 regval;
> int ret;
>
> + /* Perform optional initial bus specific configuration */
> + if (setup) {
> + ret = setup(dev, regmap);
> + if (ret)
> + return ret;
> + }
> +
> ret = regmap_read(regmap, ADXL345_REG_DEVID, ®val);
> if (ret < 0)
> return dev_err_probe(dev, ret, "Error reading device ID\n");
> diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c
> index a3084b0a8..4065b8f7c 100644
> --- a/drivers/iio/accel/adxl345_i2c.c
> +++ b/drivers/iio/accel/adxl345_i2c.c
> @@ -27,7 +27,7 @@ static int adxl345_i2c_probe(struct i2c_client *client)
> if (IS_ERR(regmap))
> return dev_err_probe(&client->dev, PTR_ERR(regmap), "Error initializing regmap\n");
>
> - return adxl345_core_probe(&client->dev, regmap);
> + return adxl345_core_probe(&client->dev, regmap, NULL);
> }
>
> static const struct adxl345_chip_info adxl345_i2c_info = {
> diff --git a/drivers/iio/accel/adxl345_spi.c b/drivers/iio/accel/adxl345_spi.c
> index 93ca349f1..1c0513bd3 100644
> --- a/drivers/iio/accel/adxl345_spi.c
> +++ b/drivers/iio/accel/adxl345_spi.c
> @@ -33,7 +33,7 @@ static int adxl345_spi_probe(struct spi_device *spi)
> if (IS_ERR(regmap))
> return dev_err_probe(&spi->dev, PTR_ERR(regmap), "Error initializing regmap\n");
>
> - return adxl345_core_probe(&spi->dev, regmap);
> + return adxl345_core_probe(&spi->dev, regmap, NULL);
> }
>
> static const struct adxl345_chip_info adxl345_spi_info = {
