[问答]

怎样去配置RK3288的双屛异显功能呢

问答对人有帮助，内容完整，我也想知道答案 0 怎样去配置RK3288的双屛异显功能呢？有哪些配置步骤？ 0
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答案对人有帮助，有参考价值 0 3288最强功能之一就是双屏异显，7.1以上不需要打补丁，RK已经把补丁打好，只需要配置dts以及build.prop变量即可。 1.配置dts支持mipi+edp双屏显示：首先是mipi的dts配置 &dsi0 { status = "okay"; //rockchip,lane-rate = <400>; panel: panel { compatible = "simple-panel-dsi"; reg = <0>; backlight = <&backlight>; //enable-gpios = <&gpio7 3 GPIO_ACTIVE_HIGH>; //gpio7_a3 mark //reset-gpios = <&gpio7 4 GPIO_ACTIVE_LOW>; power-supply = <&vcc_lcd>; dsi,flags = <(MIPI_DSI_MODE_VIDEO \| MIPI_DSI_MODE_VIDEO_BURST \| MIPI_DSI_MODE_LPM \| MIPI_DSI_MODE_EOT_PACKET\|MIPI_DSI_MODE_VIDEO_HBP)>; dsi,format = ; dsi,lanes = <4>; reset-delay-ms = <20>; init-delay-ms = <20>; enable-delay-ms = <120>; prepare-delay-ms = <120>; status = "okay"; panel-init-sequence = [ 05 78 01 11 05 14 01 29 ]; panel-exit-sequence = [ 05 64 01 28 05 96 01 10 ]; disp_timings: display-timings { native-mode = <&timing0>; timing0: timing0 { clock-frequency = <95000000>; hactive = <1920>; vactive = <1080>; hfront-porch = <48>; hsync-len = <32>; hback-porch = <80>; vfront-porch = <10>; vsync-len = <5>; vback-porch = <16>; hsync-active = <0>; vsync-active = <0>; de-active = <0>; pixelclk-active = <0>; }; }; }; }; &dsi1 { status = "disabled"; }; &route_dsi0 { status = "okay"; connect = <&vopl_out_dsi0>; }; &dsi0_in_vopl { status = "okay"; }; &dsi0_in_vopb { status = "disabled"; }; edp显示的配置： &edp_panel { ; //backlight = <&backlight1>; //backlight = <&backlight> enable-gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>; enable-delay-ms = <10>; pinctrl-0 = <&lcd_cs>; power-supply = <&vcc_lcd>; status = "okay"; display-timings { native-mode = <&F402>; F402: timing0 { clock-frequency = <88266000>; hactive = <1600>; vactive = <900>; hfront-porch = <270>; hsync-len = <100>; hback-porch = <100>; vfront-porch = <20>; vsync-len = <20>; vback-porch = <30>; hsync-active = <0>; vsync-active = <0>; de-active = <0>; pixelclk-active = <0>; }; }; }; &edp { status = "okay"; }; &edp_phy { status = "okay"; }; &route_edp { status = "okay"; connect = <&vopb_out_edp>; }; &edp_in_vopb { status = "okay"; }; &edp_in_vopl { status = "disabled"; }; 双屏由于需要两个背光控制，所以需要写两个backlight节点，我在edp这里，并没有绑定backlight节点，但可以在Hardware通过节点直接调节。直接在这里绑定backlight节点，会导致系统无法跑起来，没有仔细研究，因此没有做绑定 2.设置build.prop变量 sys.hwc.device.primary=eDP sys.hwc.device.extend=DSI

2022-3-4 09:26:51 评论举报李婧