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authorUlf Hansson <ulf.hansson@linaro.org>2012-10-17 14:27:16 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-10-17 22:14:24 +0900
commit4964a26df72c4a82e56c6b40818648d54bde93cc (patch)
treeeb20938684cf5dac86c64751dae83c1b2957a008 /drivers/spi
parent0df349945752bf04cee52babf266bbf1f4812193 (diff)
downloadblackbird-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.c3
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);
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