diff --git a/drivers/gpu/drm/rockchip/rockchip_rgb.c b/drivers/gpu/drm/rockchip/rockchip_rgb.c
index 75eb7cca3d82..c725774a0f40 100644
--- a/drivers/gpu/drm/rockchip/rockchip_rgb.c
+++ b/drivers/gpu/drm/rockchip/rockchip_rgb.c
@@ -8,6 +8,7 @@
 #include <linux/component.h>
 #include <linux/media-bus-format.h>
 #include <linux/of_graph.h>
+#include <linux/phy/phy.h>
 
 #include <drm/display/drm_dp_helper.h>
 #include <drm/drm_atomic_helper.h>
@@ -30,6 +31,7 @@ struct rockchip_rgb {
 	struct drm_bridge *bridge;
 	struct drm_encoder encoder;
 	struct drm_connector connector;
+	struct phy *dphy;
 	int output_mode;
 };
 
@@ -168,6 +170,22 @@ struct rockchip_rgb *rockchip_rgb_init(struct device *dev,
 		goto err_free_connector;
 	}
 
+	/* PHY */
+	rgb->dphy = devm_phy_get(dev, "dphy");
+	if (!IS_ERR(rgb->dphy)) {
+		ret = phy_init(rgb->dphy);
+		if (ret)
+			return ERR_PTR(ret);
+
+		ret = phy_set_mode(rgb->dphy, PHY_MODE_TTL);
+		if (ret)
+			return ERR_PTR(ret);
+
+		ret = phy_power_on(rgb->dphy);
+		if (ret)
+			return ERR_PTR(ret);
+	}
+
 	return rgb;
 
 err_free_connector: