drm: rcar-du: Add r8a7742 support

Add direct support for the r8a7742 (RZ/G1H).

The RZ/G1H shares a common, compatible configuration with the r8a7790
(R-Car H2) so that device info structure is reused, the only difference
being TCON is unsupported on RZ/G1H (Currently unsupported by the driver).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index f53b0ec710850c6a6a04a6846a331340bd0fa6b4..0f870c282455c48b3d1575ca07ead261a6fa18b8 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -216,8 +216,9 @@ static const struct rcar_du_device_info rcar_du_r8a7790_info = {
        .channels_mask = BIT(2) | BIT(1) | BIT(0),
        .routes = {
                /*
-                * R8A7790 has one RGB output, two LVDS outputs and one
-                * (currently unsupported) TCON output.
+                * R8A7742 and R8A7790 each have one RGB output and two LVDS
+                * outputs. Additionally R8A7790 supports one TCON output
+                * (currently unsupported by the driver).
                 */
                [RCAR_DU_OUTPUT_DPAD0] = {
                        .possible_crtcs = BIT(2) | BIT(1) | BIT(0),
@@ -443,6 +444,7 @@ static const struct rcar_du_device_info rcar_du_r8a7799x_info = {
 };
 
 static const struct of_device_id rcar_du_of_table[] = {
+       { .compatible = "renesas,du-r8a7742", .data = &rcar_du_r8a7790_info },
        { .compatible = "renesas,du-r8a7743", .data = &rzg1_du_r8a7743_info },
        { .compatible = "renesas,du-r8a7744", .data = &rzg1_du_r8a7743_info },
        { .compatible = "renesas,du-r8a7745", .data = &rzg1_du_r8a7745_info },