greybus: spi: Add runtime_pm support

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Add runtime operations to the spi driver so that the
module is woken up when an spi transfer is started
and put back to sleep when the transfer is done.

Testing Done: Let the module enter standby and initiate
an spi operation. The operation wakes up the module
and succeeds.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Alex Elder <elder@linaro.org>

...

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Axel Haslam 2016-07-14 15:13:00 -05:00 • committed by Alex Elder

parent afa807b8ba

commit 4c615dcc6a

3 changed files with 40 additions and 0 deletions

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5

drivers/staging/greybus/kernel_ver.h

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6

drivers/staging/greybus/spi.c

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29

drivers/staging/greybus/spilib.c

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