spi/atmel: add support for runtime PM
authorWenyou Yang <wenyou.yang@atmel.com>
Thu, 16 Oct 2014 09:23:10 +0000 (17:23 +0800)
committerMark Brown <broonie@kernel.org>
Mon, 20 Oct 2014 11:24:18 +0000 (12:24 +0100)
commitce0c4caf256cb828e0465d3cd363ec145e446e21
treef618cbdb4334545faecc9ae71634d1f3c0e7cc2b
parent5398ad6897ec666a416b1d7428f0e8a51adf4254
spi/atmel: add support for runtime PM

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>
drivers/spi/spi-atmel.c