[PATCH v5 3/7] arm64: dts: rockchip: Specify override mode for kevin panel

[Douglas Anderson]

From: Sean Paul <seanpaul at chromium.org>

This patch adds an override mode for kevin devices. The mode increases
both back porches to allow a pixel clock of 26666kHz as opposed to the
'typical' value of 252750kHz. This is needed to avoid interference with
the touch digitizer on these laptops.

Cc: Doug Anderson <dianders at chromium.org>
Cc: Eric Anholt <eric at anholt.net>
Cc: Heiko Stuebner <heiko at sntech.de>
Cc: Jeffy Chen <jeffy.chen at rock-chips.com>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Stéphane Marchesin <marcheu at chromium.org>
Cc: Thierry Reding <thierry.reding at gmail.com>
Cc: devicetree at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Cc: linux-rockchip at lists.infradead.org
Signed-off-by: Sean Paul <seanpaul at chromium.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo at collabora.com>
Signed-off-by: Douglas Anderson <dianders at chromium.org>
---

Changes in v5: None
Changes in v4:
- Rebase to top of Heiko's tree
- Converted changelog to after-the-cut for non-DRM change.

Changes in v3:
- Unwrap the timing from display-timings and rename panel-timing (Rob)

Changes in v2:
- Wrap the timing in display-timings node to match binding (Rob/Thierry)

 arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
index 15e254a77391..454f4149585f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
@@ -43,6 +43,20 @@
 		backlight = <&backlight>;
 		power-supply = <&pp3300_disp>;
 
+		panel-timing {
+			clock-frequency = <266604720>;
+			hactive = <2400>;
+			hfront-porch = <48>;
+			hback-porch = <84>;
+			hsync-len = <32>;
+			hsync-active = <0>;
+			vactive = <1600>;
+			vfront-porch = <3>;
+			vback-porch = <120>;
+			vsync-len = <10>;
+			vsync-active = <0>;
+		};
+
 		port {
 			panel_in_edp: endpoint {
 				remote-endpoint = <&edp_out_panel>;
-- 
2.21.0.392.gf8f6787159e-goog