drm: rcar-du: Add R8A774B1 support

Add support for the R8A774B1 DU (which is very similar to the R8A77965 DU
except that it lacks TCON and CMM); it has one RGB output, one LVDS output
and one HDMI output.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@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 9c93eb4..f266c17 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -131,6 +131,35 @@ static const struct rcar_du_device_info rcar_du_r8a774a1_info = {
        .dpll_mask =  BIT(1),
 };
 
+static const struct rcar_du_device_info rcar_du_r8a774b1_info = {
+       .gen = 3,
+       .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
+                 | RCAR_DU_FEATURE_VSP1_SOURCE
+                 | RCAR_DU_FEATURE_INTERLACED
+                 | RCAR_DU_FEATURE_TVM_SYNC,
+       .channels_mask = BIT(3) | BIT(1) | BIT(0),
+       .routes = {
+               /*
+                * R8A774B1 has one RGB output, one LVDS output and one HDMI
+                * output.
+                */
+               [RCAR_DU_OUTPUT_DPAD0] = {
+                       .possible_crtcs = BIT(2),
+                       .port = 0,
+               },
+               [RCAR_DU_OUTPUT_HDMI0] = {
+                       .possible_crtcs = BIT(1),
+                       .port = 1,
+               },
+               [RCAR_DU_OUTPUT_LVDS0] = {
+                       .possible_crtcs = BIT(0),
+                       .port = 2,
+               },
+       },
+       .num_lvds = 1,
+       .dpll_mask =  BIT(1),
+};
+
 static const struct rcar_du_device_info rcar_du_r8a774c0_info = {
        .gen = 3,
        .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
@@ -416,6 +445,7 @@ static const struct of_device_id rcar_du_of_table[] = {
        { .compatible = "renesas,du-r8a7745", .data = &rzg1_du_r8a7745_info },
        { .compatible = "renesas,du-r8a77470", .data = &rzg1_du_r8a77470_info },
        { .compatible = "renesas,du-r8a774a1", .data = &rcar_du_r8a774a1_info },
+       { .compatible = "renesas,du-r8a774b1", .data = &rcar_du_r8a774b1_info },
        { .compatible = "renesas,du-r8a774c0", .data = &rcar_du_r8a774c0_info },
        { .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
        { .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },