PM / runtime: Check ignore_children in pm_runtime_need_not_resume()
Modify pm_runtime_need_not_resume() to make it avoid taking
power.child_count for devices with power.ignore_children which
is consistent with the runtime PM usage of these fields.
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 84832f1..cb5e48b8 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1616,7 +1616,8 @@ void pm_runtime_drop_link(struct device *dev)
static bool pm_runtime_need_not_resume(struct device *dev)
{
return atomic_read(&dev->power.usage_count) <= 1 &&
- atomic_read(&dev->power.child_count) == 0;
+ (atomic_read(&dev->power.child_count) == 0 ||
+ dev->power.ignore_children);
}
/**
