phy: rockchip-typec: add pm runtime support

Adds pm_runtime support for rockchip Type-C, so that power domain is
enabled only when there is a transaction going on to help save power.

Signed-off-by: Chris Zhong <[e-mail]>
Signed-off-by: Kishon Vijay Abraham I <[e-mail]>

drivers/phy/phy-rockchip-typec.c

···
 		return PTR_ERR(tcphy->extcon);
 	}
 
+	pm_runtime_enable(dev);
+
 	for_each_available_child_of_node(np, child_np) {
 		struct phy *phy;
 
···
 	return 0;
 }
 
+static int rockchip_typec_phy_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
 static const struct of_device_id rockchip_typec_phy_dt_ids[] = {
 	{ .compatible = "rockchip,rk3399-typec-phy" },
 	{}
···
 
 static struct platform_driver rockchip_typec_phy_driver = {
 	.probe		= rockchip_typec_phy_probe,
+	.remove		= rockchip_typec_phy_remove,
 	.driver		= {
 		.name	= "rockchip-typec-phy",
 		.of_match_table = rockchip_typec_phy_dt_ids,