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>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index a9106c936ed..c220c234627 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);