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ARM: dts: rockchip: Switch to builtin HDMI DDC bus on rk3288-veyron

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Downstream Chrome OS kernels use the builtin DDC bus from dw_hdmi on
veyron.  This is the only way to get them to negotiate HDCP.

Although HDCP isn't currently all supported upstream, it still seems
like it makes sense to use dw_hdmi's builtin I2C.  Maybe eventually we
can get HDCP negotiation working.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Douglas Anderson 2019-05-02 15:53:34 -07:00 committed by Heiko Stuebner
parent d85b2ad35a
commit bf09924f21
1 changed files with 2 additions and 9 deletions
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11
arch/arm/boot/dts/rk3288-veyron.dtsi
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@ -175,7 +175,8 @@ &gpu_crit {
};
&hdmi {
ddc-i2c-bus = <&i2c5>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_ddc>;
status = "okay";
};
@ -346,14 +347,6 @@ &i2c4 {
i2c-scl-rising-time-ns = <300>; /* 225ns measured */
};
&i2c5 {
status = "okay";
clock-frequency = <100000>;
i2c-scl-falling-time-ns = <300>;
i2c-scl-rising-time-ns = <1000>;
};
&io_domains {
status = "okay";