spi/atmel: add support for runtime PM

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Drivers should put the device into low power states proactively whenever the
device is not in use. Thus implement support for runtime PM and use the
autosuspend feature to make sure that we can still perform well in case we see
lots of SPI traffic within short period of time.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Wenyou Yang 2014-10-16 17:23:10 +08:00 • committed by Mark Brown

parent 5398ad6897

commit ce0c4caf25

1 changed files with 61 additions and 7 deletions

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drivers/spi/spi-atmel.c

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