This patch call runtiem PM function manually if the state is runtime resumed
before enter suspend.
This case has occurred when wake-up by the resume after entering to
suspend during the playback.
$ aplay -> runtime_resume() -> suspend() -> resume()
In this case, Can occurred an error when enter suspend.
--
[ 82.559234] PM: suspend of devices complete after 57.252 msecs
[ 82.567978] arizona spi1.0: Failed to read IRQ status: -108
[ 82.567989] arizona spi1.0: Failed to read main IRQ status: -108
[ 82.568027] arizona spi1.0: Failed to read IRQ status: -108
[ 82.568036] arizona spi1.0: Failed to read main IRQ status: -108
....
So, we should call runtime_suspend() manually when enter suspend
if the state is runtime resume.
Also should call runtime_resume() when wake-up by resume if the state
was runtime resume before entering suspend.
Signed-off-by: Inha Song <ideal.s...@samsung.com>
---
drivers/mfd/arizona-core.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 908c69b..de55706 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -683,6 +683,10 @@ static int arizona_suspend(struct device *dev)
struct arizona *arizona = dev_get_drvdata(dev);
dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
+
+ if (!pm_runtime_status_suspended(dev))
+ arizona_runtime_suspend(dev);
+
disable_irq(arizona->irq);
return 0;
@@ -713,6 +717,10 @@ static int arizona_resume(struct device *dev)
struct arizona *arizona = dev_get_drvdata(dev);
dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n");
+
+ if (!pm_runtime_status_suspended(dev))
+ arizona_runtime_resume(dev);
+
enable_irq(arizona->irq);
return 0;
--
2.0.0.390.gcb682f8
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