drm/rockchip: remove rockchip_drm_encoder_get_mux_id

It is replaced by drm_of_encoder_active_endpoint_id.
Suggested-by: NDaniel Kurtz <djkurtz@chromium.org>
Reviewed-by: NDaniel Kurtz <djkurtz@chromium.org>
Reviewed-by: NHeiko Stuebner <heiko@sntech.de>
Tested-by: NYakir Yang <ykk@rock-chips.com>
[for dw_hdmi-rockchip]
Acked-by: NMark Yao <mark.yao@rock-chips.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/drm/rockchip/dw-mipi-dsi.c

@@ -885,7 +885,7 @@ static bool dw_mipi_dsi_encoder_mode_fixup(struct drm_encoder *encoder,
 static void dw_mipi_dsi_encoder_commit(struct drm_encoder *encoder)
 {
 	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
-	int mux  = rockchip_drm_encoder_get_mux_id(dsi->dev->of_node, encoder);
+	int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
 	u32 interface_pix_fmt;
 	u32 val;
 

drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c

@@ -204,7 +204,7 @@ static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
 	rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
 				      ROCKCHIP_OUT_MODE_AAAA);
 
-	mux = rockchip_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
+	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
 	if (mux)
 		val = HDMI_SEL_VOP_LIT | (HDMI_SEL_VOP_LIT << 16);
 	else

drivers/gpu/drm/rockchip/rockchip_drm_drv.c

@@ -384,36 +384,6 @@ static const struct dev_pm_ops rockchip_drm_pm_ops = {
 				rockchip_drm_sys_resume)
 };
 
-/*
- * @node: device tree node containing encoder input ports
- * @encoder: drm_encoder
- */
-int rockchip_drm_encoder_get_mux_id(struct device_node *node,
-				    struct drm_encoder *encoder)
-{
-	struct device_node *ep;
-	struct drm_crtc *crtc = encoder->crtc;
-	struct of_endpoint endpoint;
-	struct device_node *port;
-	int ret;
-
-	if (!node || !crtc)
-		return -EINVAL;
-
-	for_each_endpoint_of_node(node, ep) {
-		port = of_graph_get_remote_port(ep);
-		of_node_put(port);
-		if (port == crtc->port) {
-			ret = of_graph_parse_endpoint(ep, &endpoint);
-			of_node_put(ep);
-			return ret ?: endpoint.id;
-		}
-	}
-
-	return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(rockchip_drm_encoder_get_mux_id);
-
 static int compare_of(struct device *dev, void *data)
 {
 	struct device_node *np = data;

drivers/gpu/drm/rockchip/rockchip_drm_drv.h

@@ -67,8 +67,6 @@ void rockchip_drm_atomic_work(struct work_struct *work);
 int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
 				 const struct rockchip_crtc_funcs *crtc_funcs);
 void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc);
-int rockchip_drm_encoder_get_mux_id(struct device_node *node,
-				    struct drm_encoder *encoder);
 int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type,
 				  int out_mode);
 int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,