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charset="utf-8" Add backend support for staring the capture synchronization. When activated, it initates a proccess that aligns the sample's most significant bit (MSB) based solely on the captured data, without considering any other external signals. Signed-off-by: Antoniu Miclaus --- changes in v4: - implement iio_backend_interface_data_align with timeout parameter. drivers/iio/industrialio-backend.c | 14 ++++++++++++++ include/linux/iio/backend.h | 3 +++ 2 files changed, 17 insertions(+) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-= backend.c index 038c9e1e2857..b7cbbc7a8fcd 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -796,6 +796,20 @@ int iio_backend_filter_type_set(struct iio_backend *ba= ck, } EXPORT_SYMBOL_NS_GPL(iio_backend_filter_type_set, "IIO_BACKEND"); =20 +/** + * iio_backend_data_align - Perform the data alignment process. + * @back: Backend device + * @timeout: Timeout value. + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_interface_data_align(struct iio_backend *back, u32 timeout) +{ + return iio_backend_op_call(back, interface_data_align, timeout); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_interface_data_align, "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 5526800f5d4a..452cb2838dad 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -109,6 +109,7 @@ enum iio_backend_filter_type { * @debugfs_print_chan_status: Print channel status into a buffer. * @debugfs_reg_access: Read or write register value of backend. * @filter_type_set: Set filter type. + * @interface_data_align: Perform the data alignment process. * @ddr_enable: Enable interface DDR (Double Data Rate) mode. * @ddr_disable: Disable interface DDR (Double Data Rate) mode. * @data_stream_enable: Enable data stream. @@ -161,6 +162,7 @@ struct iio_backend_ops { unsigned int writeval, unsigned int *readval); int (*filter_type_set)(struct iio_backend *back, enum iio_backend_filter_type type); + int (*interface_data_align)(struct iio_backend *back, u32 timeout); int (*ddr_enable)(struct iio_backend *back); int (*ddr_disable)(struct iio_backend *back); int (*data_stream_enable)(struct iio_backend *back); @@ -203,6 +205,7 @@ int devm_iio_backend_request_buffer(struct device *dev, struct iio_dev *indio_dev); int iio_backend_filter_type_set(struct iio_backend *back, enum iio_backend_filter_type type); +int iio_backend_interface_data_align(struct iio_backend *back, u32 timeout= ); 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