[PATCH v3 10/13] drm/mediatek: add callback function to return RDMA layer number

[Stu Hsieh]

This patch add callback function to return RDMA layer number

RDMA always has one layer.

Signed-off-by: Stu Hsieh <stu.hsieh@xxxxxxxxxxxx>
---
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 91a8b6e27d39..68c99253285b 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -188,6 +188,11 @@ static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
 	}
 }
 
+static unsigned int mtk_rdma_layer_nr(struct mtk_ddp_comp *comp)
+{
+	return 1;
+}
+
 static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
 				  struct mtk_plane_state *state)
 {
@@ -220,6 +225,7 @@ static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = {
 	.stop = mtk_rdma_stop,
 	.enable_vblank = mtk_rdma_enable_vblank,
 	.disable_vblank = mtk_rdma_disable_vblank,
+	.layer_nr = mtk_rdma_layer_nr,
 	.layer_config = mtk_rdma_layer_config,
 };
 
-- 
2.12.5.2.gbdf23ab