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PM / runtime: Check ignore_children in pm_runtime_need_not_resume()

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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>
This commit is contained in:
Rafael J. Wysocki 2018-01-15 01:46:25 +01:00
parent 4918e1f87c
commit 1f5c685526
1 changed files with 2 additions and 1 deletions
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3
drivers/base/power/runtime.c
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@ -1616,7 +1616,8 @@ void pm_runtime_drop_link(struct device *dev)
static bool pm_runtime_need_not_resume(struct device *dev) static bool pm_runtime_need_not_resume(struct device *dev)
{ {
return atomic_read(&dev->power.usage_count) <= 1 && 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);
} }
/** /**