From: Tomi Valkeinen Date: Fri, 4 Aug 2023 10:48:13 +0000 (+0300) Subject: drm/bridge: lt8912b: Add missing drm_bridge_attach call X-Git-Tag: v6.6.17~3416 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1ea9c12b66415e2b27b93ee4f1a8470298595c07;p=platform%2Fkernel%2Flinux-rpi.git drm/bridge: lt8912b: Add missing drm_bridge_attach call [ Upstream commit f45acf7acf75921c0409d452f0165f51a19a74fd ] The driver does not call drm_bridge_attach(), which causes the next bridge to not be added to the bridge chain. This causes the pipeline init to fail when DRM_BRIDGE_ATTACH_NO_CONNECTOR is used. Add the call to drm_bridge_attach(). Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge") Signed-off-by: Tomi Valkeinen Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20230804-lt8912b-v1-4-c542692c6a2f@ideasonboard.com Signed-off-by: Sasha Levin --- diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index 9ee639e..03532ef 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -558,6 +558,13 @@ static int lt8912_bridge_attach(struct drm_bridge *bridge, struct lt8912 *lt = bridge_to_lt8912(bridge); int ret; + ret = drm_bridge_attach(bridge->encoder, lt->hdmi_port, bridge, + DRM_BRIDGE_ATTACH_NO_CONNECTOR); + if (ret < 0) { + dev_err(lt->dev, "Failed to attach next bridge (%d)\n", ret); + return ret; + } + if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) { ret = lt8912_bridge_connector_init(bridge); if (ret) {