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@xxxxxxxxxxxx>
Cc: Eric Anholt <eric@xxxxxxxxxx>
Cc: Heiko Stuebner <heiko@xxxxxxxxx>
Cc: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-rockchip@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
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>;
--
2.16.0.rc1.238.g530d649a79-goog
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