RK3588 配置HDMI支持8K分辨率输出
RK3588 配置HDMI支持8K分辨率输出 RK3588 芯片最高支持的输出分辨率可以到8K，由于Android12 SDK要支持多个显示接口，所以默认最高只配置了4K的分辨率支持，下面以RK3588-EVB1的开发板上配置HDMI输出8K输出为例进行说明如何让RK3588支持8K分辨率。 本文配置RK3588-EVB1开发HDMI0接口输出8K分辨率。一、提供VOP CLK以支持8K分辨率提cru ACLK_VOP的频率到800MHzdiff --gita/arch/arm64/boot/dts/rockchip/rk3588s.dtsib/arch/arm64/boot/dts/rockchip/rk3588s.dtsiindex 2704255b0ca23..1fcb10641dc3e 100644---a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi+++b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi cru: clock-controller@fd7c0000 { compatible ="rockchip,rk3588-cru"; rockchip,grf =<&php_grf>; reg = <0x0 0xfd7c0000 0x00x5c000>; #clock-cells = <1>; #reset-cells = <1>; assigned-clocks = <&cruPLL_PPLL>, <&cru PLL_AUPLL>, <&cruPLL_NPLL>, <&cru PLL_GPLL>, <&cruACLK_CENTER_ROOT>, <&cru HCLK_CENTER_ROOT>,<&cru ACLK_CENTER_LOW_ROOT>, <&cruACLK_TOP_ROOT>, <&cru PCLK_TOP_ROOT>, <&cruACLK_LOW_TOP_ROOT>, <&cru PCLK_PMU0_ROOT>, <&cruHCLK_PMU_CM0_ROOT>, <&cru ACLK_VOP>, <&cruACLK_BUS_ROOT>, <&cru CLK_150M_SRC>, <&cruCLK_GPU>; assigned-clock-rates = <100000000>,<786432000>, <850000000>,<1188000000>, <702000000>, <400000000>,<500000000>, <800000000>,<100000000>, <400000000>,<100000000>,- <200000000>,<500000000>,+ <200000000>, <800000000>, <375000000>,<150000000>, <200000000>; }; 二、修改VOP的图层分配RK3588的有4个vop port分别支持4K+4K+4K+1080P（关于VOP的详细介绍可以参考文档Rockchip RK3588 kernel dts解析之显示模块）,如果需要支持8K需要把vp0和vp1组合使用，这里只需要把HDMI0分配到vp0上，vp1不分配给其他接口即可，因为SDK中的RK3588-EVB1的dts中HMDI1配置在vp1上面，所以需要把HMDI1改为配置在vp2上面，这样即可空出vp1给HMDI0做8K显示用。 diff --gita/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4.dtsib/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4.dtsiindex 543d78d3f182f..4f4f4b5f01eab 100644---a/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4.dtsi+++b/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4.dtsi@@ -360,8 +360,8 @@ status = "okay"; }; -&hdmi1_in_vp1 {- status = "okay";+&hdmi1_in_vp2 {+ status = "dokay"; };
pdf文档 RK3588都支持8K的输出了啊，这要是做个机顶盒之类的，那不是很不错么
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