iio: buffer-dma,adi-axi-adc: introduce devm_iio_dmaengine_buffer_setup()

This change does a conversion of the devm_iio_dmaengine_buffer_alloc() to
devm_iio_dmaengine_buffer_setup(). This will allocate an IIO DMA buffer and
attach it to the IIO device, similar to devm_iio_triggered_buffer_setup()
(though the underlying code is different, the final logic is the same).

Since the only user of the devm_iio_dmaengine_buffer_alloc() was the
adi-axi-adc driver, this change does the replacement in a single go in the
driver.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210215104043.91251-7-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

This commit is contained in:

Alexandru Ardelean

2021-02-15 12:40:25 +02:00

committed by

Jonathan Cameron

parent 99f6e8215b

commit a02c09e42b

4 changed files with 38 additions and 15 deletions

									
										Documentation/driver-api/driver-model/devres.rst
									
		+1
		
												View File
												
				@@ -285,6 +285,7 @@ I2C

				IIO

				  devm_iio_device_alloc()

				  devm_iio_device_register()

				  devm_iio_dmaengine_buffer_setup()

				  devm_iio_kfifo_buffer_setup()

				  devm_iio_triggered_buffer_setup()

				  devm_iio_trigger_alloc()