Commit 4df614c4 authored Apr 05, 2019 by Kishon Vijay Abraham I

phy: core: Invoke pm_runtime_get_/pm_runtime_put_ before invoking reset callback



PHY drivers may try to access PHY registers in the ->reset() callback.
Invoke phy_pm_runtime_get_sync() before invoking the ->reset() callback
so that the PHY drivers don't have to enable clocks by themselves before
accessing PHY registers.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

parent fec06b2b

drivers/phy/phy-core.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -384,10 +384,16 @@ int phy_reset(struct phy *phy)
		if (!phy \|\| !phy->ops->reset)
		return 0;

		ret = phy_pm_runtime_get_sync(phy);
		if (ret < 0 && ret != -ENOTSUPP)
		return ret;

		mutex_lock(&phy->mutex);
		ret = phy->ops->reset(phy);
		mutex_unlock(&phy->mutex);

		phy_pm_runtime_put(phy);

		return ret;
		}
		EXPORT_SYMBOL_GPL(phy_reset);