[PATCH] drm: rcar-du: Add r8a77980 support

[Kieran Bingham]

Add direct support for the r8a77980 (V3H).

The V3H shares a common, compatible configuration with the r8a77970
(V3M) so that device info structure is reused.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_drv.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index d1003d31cfaf..fc5b0949daf0 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -374,7 +374,10 @@ static const struct rcar_du_device_info rcar_du_r8a77970_info = {
 		  | RCAR_DU_FEATURE_TVM_SYNC,
 	.channels_mask = BIT(0),
 	.routes = {
-		/* R8A77970 has one RGB output and one LVDS output. */
+		/*
+		 * R8A77970 and R8A77980 have one RGB output and one LVDS
+		 * output.
+		 */
 		[RCAR_DU_OUTPUT_DPAD0] = {
 			.possible_crtcs = BIT(0),
 			.port = 0,
@@ -432,6 +435,7 @@ static const struct of_device_id rcar_du_of_table[] = {
 	{ .compatible = "renesas,du-r8a7796", .data = &rcar_du_r8a7796_info },
 	{ .compatible = "renesas,du-r8a77965", .data = &rcar_du_r8a77965_info },
 	{ .compatible = "renesas,du-r8a77970", .data = &rcar_du_r8a77970_info },
+	{ .compatible = "renesas,du-r8a77980", .data = &rcar_du_r8a77970_info },
 	{ .compatible = "renesas,du-r8a77990", .data = &rcar_du_r8a7799x_info },
 	{ .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info },
 	{ }
-- 
2.20.1