drm/mediatek: Add connector dynamic selection capability

Add dynamic select available connector flow in mtk_drm_crtc_create()
and mtk_drm_crtc_atomic_enable().

In mtk_drm_crtc_create(), if there is a connector routes array in drm
driver data, all components definded in the connector routes array will
be checked and their encoder_index will be set.

In mtk_drm_crtc_atomic_enable(), crtc will check its encoder_index to
identify which componet in the connector routes array should append.

Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
Signed-off-by: Nancy Lin <nancy.lin@mediatek.com>
Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
Tested-by: Fei Shao <fshao@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20231004024013.18956-6-jason-jh.lin@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index f4de8bb27685..6f98fff4f1a4 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -28,6 +28,11 @@ struct drm_fb_helper;
 struct drm_property;
 struct regmap;
 
+struct mtk_drm_route {
+	const unsigned int crtc_id;
+	const unsigned int route_ddp;
+};
+
 struct mtk_mmsys_driver_data {
 	const unsigned int *main_path;
 	unsigned int main_len;
@@ -35,6 +40,8 @@ struct mtk_mmsys_driver_data {
 	unsigned int ext_len;
 	const unsigned int *third_path;
 	unsigned int third_len;
+	const struct mtk_drm_route *conn_routes;
+	unsigned int num_conn_routes;
 
 	bool shadow_register;
 	unsigned int mmsys_id;