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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2012-10-17 14:27:16 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-17 22:14:24 +0900 |
| commit | 4964a26df72c4a82e56c6b40818648d54bde93cc (patch) | |
| tree | eb20938684cf5dac86c64751dae83c1b2957a008 /drivers/spi | |
| parent | 0df349945752bf04cee52babf266bbf1f4812193 (diff) | |
| download | blackbird-op-linux-4964a26df72c4a82e56c6b40818648d54bde93cc.tar.gz blackbird-op-linux-4964a26df72c4a82e56c6b40818648d54bde93cc.zip | |
spi/pl022: Activate resourses before deactivate them in suspend
To be able to deactivate resourses in suspend, the resourses must
first be surely active. This is done with a pm_runtime_get_sync.
Once the resourses are restored to active state again in resume,
the runtime pm usage count can be decreased with a pm_runtime_put.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-pl022.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index a9106c936edb..c220c2346276 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2349,6 +2349,8 @@ static int pl022_suspend(struct device *dev) dev_warn(dev, "cannot suspend master\n"); return ret; } + + pm_runtime_get_sync(dev); pl022_suspend_resources(pl022); dev_dbg(dev, "suspended\n"); @@ -2361,6 +2363,7 @@ static int pl022_resume(struct device *dev) int ret; pl022_resume_resources(pl022); + pm_runtime_put(dev); /* Start the queue running */ ret = spi_master_resume(pl022->master); |
