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charset="utf-8" Add iio backend support for number of lanes to be enabled. Signed-off-by: Antoniu Miclaus Reviewed-by: Nuno S=C3=A1 --- no changes in v3. drivers/iio/industrialio-backend.c | 17 +++++++++++++++++ include/linux/iio/backend.h | 3 +++ 2 files changed, 20 insertions(+) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-= backend.c index f7c8167a248d..1063935cd808 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -833,6 +833,23 @@ int iio_backend_sync_status_get(struct iio_backend *ba= ck, bool *sync_en) } EXPORT_SYMBOL_NS_GPL(iio_backend_sync_status_get, "IIO_BACKEND"); =20 +/** + * iio_backend_num_lanes_set - Number of lanes enabled. + * @back: Backend device + * @num_lanes: Number of lanes. + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_num_lanes_set(struct iio_backend *back, unsigned int num_l= anes) +{ + if (!num_lanes) + return -EINVAL; + + return iio_backend_op_call(back, num_lanes_set, num_lanes); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_num_lanes_set, "IIO_BACKEND"); + /** * iio_backend_ddr_enable - Enable interface DDR (Double Data Rate) mode * @back: Backend device diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h index e93d1a98e066..c8bcfe96c542 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -112,6 +112,7 @@ enum iio_backend_filter_type { * @data_alignment_enable: Enable sync process. * @data_alignment_disable: Disable sync process. * @sync_status_get: Get the syncronization status (enabled/disabled). + * @num_lanes_set: Set the number of lanes enabled. * @ddr_enable: Enable interface DDR (Double Data Rate) mode. * @ddr_disable: Disable interface DDR (Double Data Rate) mode. * @data_stream_enable: Enable data stream. @@ -167,6 +168,7 @@ struct iio_backend_ops { int (*data_alignment_enable)(struct iio_backend *back); int (*data_alignment_disable)(struct iio_backend *back); int (*sync_status_get)(struct iio_backend *back, bool *sync_en); + int (*num_lanes_set)(struct iio_backend *back, unsigned int num_lanes); int (*ddr_enable)(struct iio_backend *back); int (*ddr_disable)(struct iio_backend *back); int (*data_stream_enable)(struct iio_backend *back); @@ -212,6 +214,7 @@ int iio_backend_filter_type_set(struct iio_backend *bac= k, int iio_backend_data_alignment_enable(struct iio_backend *back); int iio_backend_data_alignment_disable(struct iio_backend *back); int iio_backend_sync_status_get(struct iio_backend *back, bool *sync_en); +int iio_backend_num_lanes_set(struct iio_backend *back, unsigned int num_l= anes); int iio_backend_ddr_enable(struct iio_backend *back); int iio_backend_ddr_disable(struct iio_backend *back); int iio_backend_data_stream_enable(struct iio_backend *back); --=20 2.49.0