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spi/pl022: Activate resourses before deactivate them in suspend

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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>
This commit is contained in:
Ulf Hansson 2012-10-17 14:27:16 +02:00 committed by Mark Brown
parent 0df3499457
commit 4964a26df7
1 changed files with 3 additions and 0 deletions
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3
drivers/spi/spi-pl022.c
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@ -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);