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iio: backend: update iio_backend_oversampling_ratio_set

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Add chan parameter to iio_backend_oversampling_ratio_set() to allow
for contexts where the channel must be specified. Modify all
existing users.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com>
Link: https://patch.msgid.link/20250605150948.3091827-3-pop.ioan-daniel@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Pop Ioan Daniel
2025-06-05 18:09:40 +03:00
committed by Jonathan Cameron
parent 56e5ec2d85
commit 97e6882ed1
4 changed files with 8 additions and 4 deletions
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3
drivers/iio/adc/ad4851.c
View File

@@ -320,7 +320,8 @@ static int ad4851_set_oversampling_ratio(struct iio_dev *indio_dev,
return ret;
}
ret = iio_backend_oversampling_ratio_set(st->back, osr);
/* Channel is ignored by the backend being used here */
ret = iio_backend_oversampling_ratio_set(st->back, 0, osr);
if (ret)
return ret;

3
drivers/iio/adc/adi-axi-adc.c
View File

@@ -387,7 +387,8 @@ static int axi_adc_ad485x_data_size_set(struct iio_backend *back,
}
static int axi_adc_ad485x_oversampling_ratio_set(struct iio_backend *back,
unsigned int ratio)
unsigned int chan,
unsigned int ratio)
{
struct adi_axi_adc_state *st = iio_backend_get_priv(back);

3
drivers/iio/industrialio-backend.c
View File

@@ -720,9 +720,10 @@ EXPORT_SYMBOL_NS_GPL(iio_backend_data_size_set, "IIO_BACKEND");
* 0 on success, negative error number on failure.
*/
int iio_backend_oversampling_ratio_set(struct iio_backend *back,
unsigned int chan,
unsigned int ratio)
{
return iio_backend_op_call(back, oversampling_ratio_set, ratio);
return iio_backend_op_call(back, oversampling_ratio_set, chan, ratio);
}
EXPORT_SYMBOL_NS_GPL(iio_backend_oversampling_ratio_set, "IIO_BACKEND");

3
include/linux/iio/backend.h
View File

@@ -155,7 +155,7 @@ struct iio_backend_ops {
enum iio_backend_interface_type *type);
int (*data_size_set)(struct iio_backend *back, unsigned int size);
int (*oversampling_ratio_set)(struct iio_backend *back,
unsigned int ratio);
unsigned int chan, unsigned int ratio);
int (*read_raw)(struct iio_backend *back,
struct iio_chan_spec const *chan, int *val, int *val2,
long mask);
@@ -228,6 +228,7 @@ int iio_backend_interface_type_get(struct iio_backend *back,
enum iio_backend_interface_type *type);
int iio_backend_data_size_set(struct iio_backend *back, unsigned int size);
int iio_backend_oversampling_ratio_set(struct iio_backend *back,
unsigned int chan,
unsigned int ratio);
int iio_backend_read_raw(struct iio_backend *back,
struct iio_chan_spec const *chan, int *val, int *val2,