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Commit 8866df25 authored Mar 20, 2018 by Manu Gautam Committed by Kishon Vijay Abraham I Apr 25, 2018

phy: core: Allow phy_pm_runtime_xxx API calls with NULL phy



phy_init() and phy_exit() calls, and phy_power_on() and
phy_power_off() already accept NULL as valid PHY reference
and act as NOP. Extend same concept to phy runtime_pm APIs
to keep drivers (e.g. dwc3) code simple while dealing with
optional PHYs.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

parent af09a5e9

drivers/phy/phy-core.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -153,6 +153,9 @@ int phy_pm_runtime_get(struct phy *phy)
		{
		int ret;

		if (!phy)
		return 0;

		if (!pm_runtime_enabled(&phy->dev))
		return -ENOTSUPP;

		@@ -168,6 +171,9 @@ int phy_pm_runtime_get_sync(struct phy *phy)
		{
		int ret;

		if (!phy)
		return 0;

		if (!pm_runtime_enabled(&phy->dev))
		return -ENOTSUPP;

		@@ -181,6 +187,9 @@ EXPORT_SYMBOL_GPL(phy_pm_runtime_get_sync);

		int phy_pm_runtime_put(struct phy *phy)
		{
		if (!phy)
		return 0;

		if (!pm_runtime_enabled(&phy->dev))
		return -ENOTSUPP;

		@@ -190,6 +199,9 @@ EXPORT_SYMBOL_GPL(phy_pm_runtime_put);

		int phy_pm_runtime_put_sync(struct phy *phy)
		{
		if (!phy)
		return 0;

		if (!pm_runtime_enabled(&phy->dev))
		return -ENOTSUPP;

		@@ -199,6 +211,9 @@ EXPORT_SYMBOL_GPL(phy_pm_runtime_put_sync);

		void phy_pm_runtime_allow(struct phy *phy)
		{
		if (!phy)
		return;

		if (!pm_runtime_enabled(&phy->dev))
		return;

		@@ -208,6 +223,9 @@ EXPORT_SYMBOL_GPL(phy_pm_runtime_allow);

		void phy_pm_runtime_forbid(struct phy *phy)
		{
		if (!phy)
		return;

		if (!pm_runtime_enabled(&phy->dev))
		return;