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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-01-15 01:46:25 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-01-15 17:21:19 +0100 |
| commit | 1f5c6855260141ac3115e9a065491ee2ac07f9bc (patch) | |
| tree | ab0ab3f9402da055ed0f56d6c23dfbe9cd715c96 /drivers/base | |
| parent | 4918e1f87c5fb7fc8f73a7d8fb118beeb94e05f7 (diff) | |
| download | linux-1f5c6855260141ac3115e9a065491ee2ac07f9bc.tar.bz2 | |
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>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/runtime.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 84832f1a75bf..cb5e48b86453 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); } /** |