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/linux/drivers/spi/
H A Dspi-rockchip.cdiff 61cadcf46cfdb9f7eec70527968c2b91e9823786 Wed Mar 09 09:11:32 CET 2016 Shawn Lin <shawn.lin@rock-chips.com> spi: rockchip: check requesting dma channel with EPROBE_DEFER

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>