spi: rockchip: check requesting dma channel with EPROBE_DEFER

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Let's defer probing the driver if the return value of
dma_request_slave_channel is ERR_PTR(-EPROBE_DEFER) instead
of disabling dma capability directly.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Shawn Lin 2016-03-09 16:11:32 +08:00 • committed by Mark Brown

parent 557b7ea34b

commit 61cadcf46c

1 changed files with 7 additions and 1 deletions

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drivers/spi/spi-rockchip.c

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