[PATCH v3 6/7] arm64: dts: renesas: sparrow-hawk: Enable DisplayPort by adding DSC

[Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>]

From: Marek Vasut <marek.vasut+renesas@mailbox.org>

DisplayPort on the Sparrow Hawk board uses sn65dsi86 bridge, which in
turn gets the video stream from the SoC's DSI1 port. DSI1 pipeline has a
DSC block in between the DU and the DSI1. However, there was no DSC
driver in Linux and also the DSC was not defined in the dts files, and
thus the DisplayPort output did not work.

Now that we have DSC defined in the SoC dts file (r8a779g0.dtsi), we can
enable DSC for sparrowhawk.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[tomi.valkeinen: separated the sparrow hawk changes from the soc changes]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
---
 arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts b/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts
index 812b133cf29e..f418998c6b05 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts
@@ -288,6 +288,11 @@ channel4 {
 	};
 };
 
+/* Page 27 / DSI to Display */
+&dsc {
+	status = "okay";
+};
+
 /* Page 27 / DSI to Display */
 &dsi1 {
 	status = "okay";

-- 
2.43.0