[v2,5/5] arm64: dts: rockchip: Specify override mode for kevin panel

Message ID 20180207172404.107358-6-seanpaul@chromium.org
State New
Headers show
Series
  • Untitled series #27419
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Commit Message

Sean Paul Feb. 7, 2018, 5:23 p.m.
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.

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

Cc: Doug Anderson <dianders@chromium.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: St├ęphane Marchesin <marcheu@chromium.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: devicetree@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Sean Paul <seanpaul@chromium.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
index 191a6bcb1704..800eabd39076 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
@@ -98,6 +98,22 @@ 
 		backlight = <&backlight>;
 		power-supply = <&pp3300_disp>;
 
+		display-timings {
+			timing0: override {
+				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>;
+			};
+		};
+
 		ports {
 			panel_in_edp: endpoint {
 				remote-endpoint = <&edp_out_panel>;