[PATCH 4/4] rcar-du: add R8A7794 TCON support

[Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>]

Now that we have the TCON encoder driver, we can start enabling TCON support
for the  R-Car SoCs. We have only tested the code on R8A7794 so far, so  let
it  be the first supported SoC...

Based on a large patch by Andrey Gusakov.

Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
 drivers/gpu/drm/rcar-du/rcar_du_drv.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Index: renesas/drivers/gpu/drm/rcar-du/rcar_du_drv.c
===================================================================
--- renesas.orig/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ renesas/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -116,9 +116,7 @@ static const struct rcar_du_device_info
 		  | RCAR_DU_FEATURE_EXT_CTRL_REGS,
 	.num_crtcs = 2,
 	.routes = {
-		/* R8A7794 has two RGB outputs and one (currently unsupported)
-		 * TCON output.
-		 */
+		/* R8A7794 has two RGB outputs and one TCON output. */
 		[RCAR_DU_OUTPUT_DPAD0] = {
 			.possible_crtcs = BIT(0),
 			.encoder_type = DRM_MODE_ENCODER_NONE,
@@ -129,8 +127,14 @@ static const struct rcar_du_device_info
 			.encoder_type = DRM_MODE_ENCODER_NONE,
 			.port = 1,
 		},
+		[RCAR_DU_OUTPUT_TCON] = {
+			.possible_crtcs = BIT(0),
+			.encoder_type = DRM_MODE_ENCODER_TCON,
+			.port = 2,
+		},
 	},
 	.num_lvds = 0,
+	.num_tcon = 1,
 };
 
 static const struct rcar_du_device_info rcar_du_r8a7795_info = {