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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。
提供VOP CLK以支持8K分辨率 提cru ACLK_VOP的频率到800MHz diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi index 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 0x0 0x5c000>; #clock-cells = <1>; #reset-cells = <1>; assigned-clocks = <&cru PLL_PPLL>, <&cru PLL_AUPLL>, <&cru PLL_NPLL>, <&cru PLL_GPLL>, <&cru ACLK_CENTER_ROOT>, <&cru HCLK_CENTER_ROOT>, <&cru ACLK_CENTER_LOW_ROOT>, <&cru ACLK_TOP_ROOT>, <&cru PCLK_TOP_ROOT>, <&cru ACLK_LOW_TOP_ROOT>, <&cru PCLK_PMU0_ROOT>, <&cru HCLK_PMU_CM0_ROOT>, <&cru ACLK_VOP>, <&cru ACLK_BUS_ROOT>, <&cru CLK_150M_SRC>, <&cru CLK_GPU>; assigned-clock-rates = <100000000>, <786432000>, <850000000>, <1188000000>, <702000000>, <400000000>, <500000000>, <800000000>, <100000000>, <400000000>, <100000000>, - <200000000>, <500000000>, + <200000000>, <800000000>, <375000000>, <150000000>, <200000000>; }; 修改VOP的图层分配 RK3588的有4个vop port分别支持4K+4K+4K+1080P,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 --git a/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4.dtsi index 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"; }; 原作者:loitawu |
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