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iio: adc: stm32-dfsdm: Use dma_request_chan() instead dma_request_slave_channel()
authorPeter Ujfalusi <peter.ujfalusi@ti.com>
Tue, 7 Jan 2020 11:45:32 +0000 (13:45 +0200)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 12 Jan 2020 11:34:08 +0000 (11:34 +0000)
commita9ab624edd9186fbad734cfe5d606a6da3ca34db
tree2c9fc9c135f4df509e78bc8b71bc9f188f937fc0tree | snapshot
parente895bc1ebb31750f3baa74e074617d3cc5d0cee2commit | diff
iio: adc: stm32-dfsdm: Use dma_request_chan() instead dma_request_slave_channel()

dma_request_slave_channel() is a wrapper on top of dma_request_chan()
eating up the error code.

By using dma_request_chan() directly the driver can support deferred
probing against DMA.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Olivier Moysan <olivier.moysan@st.com>
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
drivers/iio/adc/stm32-dfsdm-adc.c diff | blob | history
Domain: System / Kernel;