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iio: backend: add support for number of lanes

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Add iio backend support for number of lanes to be enabled.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://patch.msgid.link/20250516082630.8236-4-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Antoniu Miclaus 2025-05-16 11:26:23 +03:00 committed by Jonathan Cameron
parent 995fd6e002
commit 5ef4cc6d24
2 changed files with 20 additions and 0 deletions
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17
drivers/iio/industrialio-backend.c
View File

@ -849,6 +849,23 @@ int iio_backend_interface_data_align(struct iio_backend *back, u32 timeout_us)
}
EXPORT_SYMBOL_NS_GPL(iio_backend_interface_data_align, "IIO_BACKEND");
/**
* 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_lanes)
{
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

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

@ -111,6 +111,7 @@ enum iio_backend_filter_type {
* @debugfs_reg_access: Read or write register value of backend.
* @filter_type_set: Set filter type.
* @interface_data_align: Perform the data alignment process.
* @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.
@ -166,6 +167,7 @@ struct iio_backend_ops {
int (*filter_type_set)(struct iio_backend *back,
enum iio_backend_filter_type type);
int (*interface_data_align)(struct iio_backend *back, u32 timeout_us);
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);
@ -211,6 +213,7 @@ int devm_iio_backend_request_buffer(struct device *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_us);
int iio_backend_num_lanes_set(struct iio_backend *back, unsigned int num_lanes);
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);