On Tuesday 20 March 2018 11:31 AM, Manu Gautam wrote:
> 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@xxxxxxxxxxxxxx>
merged, thanks!
-Kishon
> ---
> Changes for v2:
> - Fixed compilation warning
>
> drivers/phy/phy-core.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
> index 3c31ce5..1fda576 100644
> --- a/drivers/phy/phy-core.c
> +++ b/drivers/phy/phy-core.c
> @@ -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 @@ int phy_pm_runtime_get_sync(struct phy *phy)
>
> int phy_pm_runtime_put(struct phy *phy)
> {
> + if (!phy)
> + return 0;
> +
> if (!pm_runtime_enabled(&phy->dev))
> return -ENOTSUPP;
>
> @@ -190,6 +199,9 @@ int phy_pm_runtime_put(struct phy *phy)
>
> 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 @@ int phy_pm_runtime_put_sync(struct phy *phy)
>
> void phy_pm_runtime_allow(struct phy *phy)
> {
> + if (!phy)
> + return;
> +
> if (!pm_runtime_enabled(&phy->dev))
> return;
>
> @@ -208,6 +223,9 @@ void phy_pm_runtime_allow(struct phy *phy)
>
> void phy_pm_runtime_forbid(struct phy *phy)
> {
> + if (!phy)
> + return;
> +
> if (!pm_runtime_enabled(&phy->dev))
> return;
>
>
--
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