2018-02-08 18:48 GMT+01:00 Sean Paul <seanpaul@xxxxxxxxxxxx>:
> 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)
> Changes in v3:
> - Unwrap the timing from display-timings and rename panel-timing (Rob)
>
> 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 | 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 191a6bcb1704..658411ce37ea 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
> @@ -98,6 +98,20 @@
> 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>;
> + };
> +
> ports {
> panel_in_edp: endpoint {
> remote-endpoint = <&edp_out_panel>;
> --
Tested on top of linux-next on a Samsung Chromebook Plus.
Tested-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
> 2.16.0.rc1.238.g530d649a79-goog
>
> _______________________________________________
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