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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jan 26, 2022 at 9:58 AM Sascha Hauer wrote: > > Add support for the HDMI port found on RK3568. > > Signed-off-by: Sascha Hauer > --- > arch/arm64/boot/dts/rockchip/rk356x.dtsi | 37 +++++++++++++++++++++++- > 1 file changed, 36 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi > index 4008bd666d01..e38fb223e9b8 100644 > --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi > +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi > @@ -10,7 +10,6 @@ > #include > #include > #include > -#include > #include > > / { > @@ -502,6 +501,42 @@ vop_mmu: iommu@fe043e00 { > status = "disabled"; > }; > > + hdmi: hdmi@fe0a0000 { > + compatible = "rockchip,rk3568-dw-hdmi"; > + reg = <0x0 0xfe0a0000 0x0 0x20000>; > + interrupts = ; > + clocks = <&cru PCLK_HDMI_HOST>, > + <&cru CLK_HDMI_SFR>, > + <&cru CLK_HDMI_CEC>, > + <&pmucru CLK_HDMI_REF>, > + <&cru HCLK_VOP>; > + clock-names = "iahb", "isfr", "cec", "ref", "hclk"; > + pinctrl-names = "default"; > + pinctrl-0 = <&hdmitx_scl &hdmitx_sda &hdmitxm0_cec>; I looked into CEC support here, and it seems that it does work with one change. Please add the two following lines to your patch: assigned-clocks = <&cru CLK_HDMI_CEC>; assigned-clock-rates = <32768>; The issue is the clk_rtc32k_frac clock that feeds clk_rtc_32k which feeds clk_hdmi_cec is 24mhz at boot, which is too high for CEC to function. > + power-domains = <&power RK3568_PD_VO>; > + reg-io-width = <4>; > + rockchip,grf = <&grf>; > + #sound-dai-cells = <0>; > + status = "disabled"; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + hdmi_in: port@0 { > + reg = <0>; > + #address-cells = <1>; > + #size-cells = <0>; > + }; > + > + hdmi_out: port@1 { > + reg = <1>; > + #address-cells = <1>; > + #size-cells = <0>; > + }; > + }; > + }; > + > qos_gpu: qos@fe128000 { > compatible = "rockchip,rk3568-qos", "syscon"; > reg = <0x0 0xfe128000 0x0 0x20>; > -- > 2.30.2 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel