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由 Anton Bondarenko 提交于
If SPI device supports DMA mode, but DMA controller is not yet available due to e.g. a delay in the corresponding kernel module initialization, retry to initialize SPI driver later on instead of falling back into PIO only mode. Signed-off-by: NAnton Bondarenko <anton.bondarenko.sama@gmail.com> Signed-off-by: NMark Brown <broonie@kernel.org>
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