drm: bridge: dw-mipi-dsi: Switch to devm_drm_of_get_bridge

devm_drm_of_get_bridge is capable of looking up the downstream
bridge and panel and trying to add a panel bridge if the panel
is found.

Replace explicit finding calls with devm_drm_of_get_bridge.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220331154503.66054-4-jagan@amarulasolutions.com

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 1cc912b..b2efecf 100644 (file)
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -315,7 +315,6 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
        struct dw_mipi_dsi *dsi = host_to_dsi(host);
        const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
        struct drm_bridge *bridge;
-       struct drm_panel *panel;
        int ret;
 
        if (device->lanes > dsi->plat_data->max_data_lanes) {
@@ -329,17 +328,9 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
        dsi->format = device->format;
        dsi->mode_flags = device->mode_flags;
 
-       ret = drm_of_find_panel_or_bridge(host->dev->of_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);
-       }
+       bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node, 1, 0);
+       if (IS_ERR(bridge))
+               return PTR_ERR(bridge);
 
        dsi->panel_bridge = bridge;