spi: bcm2835: Implement shutdown callback

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Make sure we clear the FIFOs, stop the block, disable the clock and
release the DMA channel.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200528190605.24850-1-f.fainelli@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Florian Fainelli 2020-05-28 12:06:05 -07:00 • committed by Mark Brown

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commit 118eb0e52e

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drivers/spi/spi-bcm2835.c

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