From: Ulf Hansson <ulf.hans...@linaro.org>
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.hans...@linaro.org>
---
drivers/spi/spi-pl022.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 9194641..c3590e0 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2350,6 +2350,8 @@ 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");
@@ -2362,6 +2364,7 @@ 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);
--
1.7.10
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