phy: cadence: cdns-dphy-rx: Add runtime PM support

Enable runtime power management for the device. The PHY framework
handles calling pm_runtime_(get|put)_sync when powering on/off this
device.

Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Link: https://lore.kernel.org/r/20250224-cdns_phy_pm-v1-1-0fe2c544cc87@ideasonboard.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/cadence/cdns-dphy-rx.c b/drivers/phy/cadence/cdns-dphy-rx.c
index 7729cf80a9bd892c3e5db6cdbdc4ece9ada2d99f..3ac80141189c4c8c350b678998e5dec7a15c3892 100644 (file)
--- a/drivers/phy/cadence/cdns-dphy-rx.c
+++ b/drivers/phy/cadence/cdns-dphy-rx.c
@@ -12,6 +12,7 @@
 #include <linux/phy/phy.h>
 #include <linux/phy/phy-mipi-dphy.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/sys_soc.h>
 
 #define DPHY_PMA_CMN(reg)              (reg)
@@ -265,7 +266,7 @@ static int cdns_dphy_rx_probe(struct platform_device *pdev)
                return PTR_ERR(provider);
        }
 
-       return 0;
+       return devm_pm_runtime_enable(dev);
 }
 
 static const struct of_device_id cdns_dphy_rx_of_match[] = {