1 files changed, 7 insertions, 44 deletions

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 11d20b8638cd..b2efecf7d160 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -246,7 +246,6 @@ struct dw_mipi_dsi {
 
 	struct clk *pclk;
 
-	bool device_found;
 	unsigned int lane_mbps; /* per lane */
 	u32 channel;
 	u32 lanes;
@@ -310,37 +309,12 @@ static inline u32 dsi_read(struct dw_mipi_dsi *dsi, u32 reg)
 	return readl(dsi->base + reg);
 }
 
-static int dw_mipi_dsi_panel_or_bridge(struct dw_mipi_dsi *dsi,
-				       struct device_node *node)
-{
-	struct drm_bridge *bridge;
-	struct drm_panel *panel;
-	int ret;
-
-	ret = drm_of_find_panel_or_bridge(node, 1, 0, &panel, &bridge);
-	if (ret)
-		return ret;
-
-	if (panel) {
-		bridge = drm_panel_bridge_add_typed(panel,
-						    DRM_MODE_CONNECTOR_DSI);
-		if (IS_ERR(bridge))
-			return PTR_ERR(bridge);
-	}
-
-	dsi->panel_bridge = bridge;
-
-	if (!dsi->panel_bridge)
-		return -EPROBE_DEFER;
-
-	return 0;
-}
-
 static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
 				   struct mipi_dsi_device *device)
 {
 	struct dw_mipi_dsi *dsi = host_to_dsi(host);
 	const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+	struct drm_bridge *bridge;
 	int ret;
 
 	if (device->lanes > dsi->plat_data->max_data_lanes) {
@@ -354,13 +328,13 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
 	dsi->format = device->format;
 	dsi->mode_flags = device->mode_flags;
 
-	if (!dsi->device_found) {
-		ret = dw_mipi_dsi_panel_or_bridge(dsi, host->dev->of_node);
-		if (ret)
-			return ret;
+	bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node, 1, 0);
+	if (IS_ERR(bridge))
+		return PTR_ERR(bridge);
 
-		dsi->device_found = true;
-	}
+	dsi->panel_bridge = bridge;
+
+	drm_bridge_add(&dsi->bridge);
 
 	if (pdata->host_ops && pdata->host_ops->attach) {
 		ret = pdata->host_ops->attach(pdata->priv_data, device);
@@ -1021,16 +995,6 @@ static int dw_mipi_dsi_bridge_attach(struct drm_bridge *bridge,
 	/* Set the encoder type as caller does not know it */
 	bridge->encoder->encoder_type = DRM_MODE_ENCODER_DSI;
 
-	if (!dsi->device_found) {
-		int ret;
-
-		ret = dw_mipi_dsi_panel_or_bridge(dsi, dsi->dev->of_node);
-		if (ret)
-			return ret;
-
-		dsi->device_found = true;
-	}
-
 	/* Attach the panel-bridge to the dsi bridge */
 	return drm_bridge_attach(bridge->encoder, dsi->panel_bridge, bridge,
 				 flags);
@@ -1217,7 +1181,6 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
 #ifdef CONFIG_OF
 	dsi->bridge.of_node = pdev->dev.of_node;
 #endif
-	drm_bridge_add(&dsi->bridge);
 
 	return dsi;
 }