c1fce22522
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> Link: https://lore.kernel.org/r/20191217112656.30860-1-peter.ujfalusi@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>