RK3568 android11.0 LCD多屏配置

RK3568 android11.0 LCD多屏配置 技术小宅 2024-01-11 11:27:30 426

RK3568支持三屏显示,显示屏DTS配置划分为三部分:LCD参数配置,LCD引脚配置,VP通道配置

  • LCD参数配置根据单屏显示参数移植即可
  • LCD引脚配置,包括RST, PWR, PWM

注:若不同通道的屏,使用相同的引脚,只需要在其中一个屏中控制;若同时配置的话,则会uboot启动失败.

常用调试命令:

adb root
adb remount
adb shell
#getprop | grep hw //查看屏配置
#cat /d/dri/0/summary //查看vop绑定情况
adb shell settings get system screen_brightness //获取当前亮度值
adb shell settings put system screen_brightness 150 //更改亮度值(亮度值在0—255之间)

一. LCD参数配置

1. lvds显示配置
&lvds_panel {
        status = "okay";
        compatible = "simple-panel";
        backlight = <&backlight4>; //背光
        enable-delay-ms = <20>;
        prepare-delay-ms = <20>;
        unprepare-delay-ms = <20>;
        disable-delay-ms = <20>;
        bus-format = <MEDIA_BUS_FMT_RGB666_1X7X3_SPWG>; //MEDIA_BUS_FMT_RGB666_1X7X3_JEIDA
        width-mm = <217>;
        height-mm = <136>;

        display-timings {
                native-mode = <&timing2>;
                timing2: timing2 {
                        clock-frequency = <45000000>;
                        hactive = <1024>;
                        vactive = <600>;
                        hback-porch = <160>;
                        hfront-porch = <160>;
                        vback-porch = <23>;
                        vfront-porch = <12>;
                        hsync-len = <20>;
                        vsync-len = <3>;
                        hsync-active = <0>;
                        vsync-active = <0>;
                        de-active = <0>;
                        pixelclk-active = <0>;
                };
        };

        ports {
                #address-cells = <1>;
                #size-cells = <0>;

                port@0 {
                        reg = <0>;
                        dual-lvds-even-pixels;
                        panel_in_lvds: endpoint {
                                remote-endpoint = <&lvds_out_panel>;
                        };
                };
        };
};

&lvds {
        status = "okay";
        ports {
                port@1 {
                        reg = <1>;


                        lvds_out_panel: endpoint {
                                remote-endpoint = <&panel_in_lvds>;
                        };
                };
        };
};

&video_phy0 {
        status = "okay";
};
2. dsi0显示配置
&dsi0 {
        status = "okay";
        rockchip,lane-rate = <480>;
        dsi0_panel: panel@0 {
                status = "okay";
                compatible = "simple-panel-dsi";
                reg = <0>;
                reset-delay-ms = <60>;
                enable-delay-ms = <60>;
                prepare-delay-ms = <60>;
                unprepare-delay-ms = <60>;
                disable-delay-ms = <60>;
                dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
                        MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;
                dsi,format = <MIPI_DSI_FMT_RGB888>;
                dsi,lanes  = <4>;

                panel-init-sequence = [
                        05 78 01 11
                        05 78 01 29
                ];

                panel-exit-sequence = [
                        05 00 01 28
                        05 78 01 10
                ];

                disp_timings0: display-timings {
                        native-mode = <&dsi0_timing0>;
                        dsi0_timing0: timing0 {
                                clock-frequency = <51000000>;
                                hactive = <1024>;
                                vactive = <600>;
                                hback-porch = <160>;
                                hfront-porch = <136>;
                                vback-porch = <16>;
                                vfront-porch = <16>;
                                hsync-len = <4>;
                                vsync-len = <2>;
                                hsync-active = <0>;
                                vsync-active = <0>;
                                de-active = <0>;
                                pixelclk-active = <1>;
                        };
                };

                ports {
                        #address-cells = <1>;
                        #size-cells = <0>;


                        port@0 {
                                reg = <0>;
                                panel_in_dsi: endpoint {
                                        remote-endpoint = <&dsi_out_panel>;
                                };
                        };
                };
        };
        ports {
                #address-cells = <1>;
                #size-cells = <0>;

                port@1 {
                        reg = <1>;
                        dsi_out_panel: endpoint {
                                remote-endpoint = <&panel_in_dsi>;
                        };
                };
        };
};

&mipi_dphy0 {
        status = "disabled"; //这个节点一定要disabled掉,不然会进不去系统;//I've been in trouble here before
};
3. dsi1显示配置
&dsi1 {
        status = "okay";
        //rockchip,lane-rate = <480>;
        dsi1_panel: panel@0 {
                status = "okay";
                compatible = "simple-panel-dsi";
                reg = <0>;
                backlight = <&backlight5>;
                reset-delay-ms = <60>;
                enable-delay-ms = <60>;
                prepare-delay-ms = <60>;
                unprepare-delay-ms = <60>;
                disable-delay-ms = <60>;
                dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
                        MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;
                dsi,format = <MIPI_DSI_FMT_RGB888>;
                dsi,lanes  = <4>;
                panel-init-sequence = [
                        05 78 01 11
                        05 78 01 29
                ];

                panel-exit-sequence = [
                        05 00 01 28
                        05 78 01 10
                ];

                disp_timings1: display-timings {
                        native-mode = <&dsi1_timing0>;
                        dsi1_timing0: timing0 {
                                clock-frequency = <35000000>;
                                hactive = <1024>;
                                vactive = <600>;
                                hback-porch = <160>;
                                hfront-porch = <136>;
                                vback-porch = <16>;
                                vfront-porch = <16>;
                                hsync-len = <4>;
                                vsync-len = <2>;
                                hsync-active = <0>;
                                vsync-active = <0>;
                                de-active = <0>;
                                pixelclk-active = <1>;
                        };
                };

                ports {
                        #address-cells = <1>;
                        #size-cells = <0>;


                        port@0 {
                                reg = <0>;
                                panel_in_dsi1: endpoint {
                                        remote-endpoint = <&dsi1_out_panel>;
                                };
                        };
                };
        };

        ports {
                #address-cells = <1>;
                #size-cells = <0>;


                port@1 {
                        reg = <1>;
                        dsi1_out_panel: endpoint {
                                remote-endpoint = <&panel_in_dsi1>;
                        };
                };
        };
};

&mipi_dphy1 {
        status = "okay";
};
4. edp显示配置
&edp_panel {
        status = "okay";
        compatible = "simple-panel";
        //backlight = <&backlight5>;
        prepare-delay-ms = <20>;
        enable-delay-ms = <20>;
        disable-delay-ms = <20>;
        unprepare-delay-ms = <20>;

        display-timings {
                native-mode = <&timing1>;

                timing0: timing0 {//EDP 13.3
                        clock-frequency = <150000000>;
                        hactive = <1920>;
                        vactive = <1080>;
                        hfront-porch = <12>;
                        hsync-len = <16>;
                        hback-porch = <48>;
                        vfront-porch = <8>;
                        vsync-len = <4>;
                        vback-porch = <8>;
                        hsync-active = <0>;
                        vsync-active = <0>;
                        de-active = <0>;
                        pixelclk-active = <0>;
                };

                timing1: timing1 {// EDP 15.6   LP156WF6
                        clock-frequency = <138000000>;
                        hactive = <1920>;
                        vactive = <1080>;
                        hfront-porch = <48>;
                        hsync-len = <32>;
                        hback-porch = <80>;
                        vfront-porch = <3>;
                        vsync-len = <5>;
                        vback-porch = <23>;
                        hsync-active = <0>;
                        vsync-active = <0>;
                        de-active = <0>;
                        pixelclk-active = <0>;
                };
        };

        ports {
                        panel_in_edp: endpoint {
                                remote-endpoint = <&edp_out_panel>;
                        };
        };
};

&edp {
        hpd-gpios = <&gpio0 RK_PC2 GPIO_ACTIVE_HIGH>;
        status = "okay";
        force-hpd;
        ports {
                port@1 {
                        reg = <1>;


                        edp_out_panel: endpoint {
                                remote-endpoint = <&panel_in_edp>;
                        };
                };
        };
};

&edp_phy {
        status = "okay";
};

二. VP通道配置

RK3568支持VP0~2,每个VP通道只能配置单一显示屏,并且每个通道支持显示屏格式不一致。

1. 常用参数

VP0 : dsi0_in_vp0、dsi1_in_vp0、edp_in_vp0、hdmi_in_vp0
VP1 : dsi0_in_vp1、dsi1_in_vp1、edp_in_vp1、hdmi_in_vp1、lvds_in_vp1
VP2 : lvds_in_vp2、rgb_in_vp2

2. vp通道绑定

dsi0 + vp0

&dsi0_in_vp0 {
        status = "okay";
};

&dsi0_in_vp1 {
        status = "disabled";
};

&route_dsi0 {
        status = "okay";
        connect = <&vp0_out_dsi0>;
};

dsi1+vp0

&dsi1_in_vp0 {
        status = "okay";
};

&dsi1_in_vp1 {
        status = "disabled";
};

&route_dsi1 {
        status = "okay";
        connect = <&vp0_out_dsi1>;
};

edp+vp1

&edp_in_vp0 {
        status = "disabled";
};

&edp_in_vp1 {
        status = "okay";
};

&route_edp {
        status = "okay";
        connect = <&vp1_out_edp>;
};

lvds+vp2

&lvds_in_vp1 {
        status = "disabled";
};

&lvds_in_vp2 {
        status = "okay";
};

&route_lvds {
        status = "okay";
        connect = <&vp2_out_lvds>;
};

三. LCD引脚配置

1. RST/PWR GPIO配置

注:不论PWM,RST,PWR中任一引脚,都不能重复配置在已经使能的通道下,否则会导致uboot启动失败。

// MIPI DSI0
&dsi0_panel {
      power-supply = <&vcc3v3_lcd_n>;
      reset-gpios = <&gpio4 RK_PD2 GPIO_ACTIVE_LOW>; //reset脚gpio口
      pinctrl-names = "default";
      pinctrl-0 = <&lcd_rst_gpio>;
      backlight = <&backlight4>;
};

// MIPI DSI1
&dsi1_panel {
        power-supply = <&vcc3v3_lcd_n>;
        reset-gpios = <&gpio4 RK_PD2 GPIO_ACTIVE_LOW>;
        pinctrl-names = "default";
        pinctrl-0 = <&lcd_rst_gpio>;
        backlight = <&backlight5>;
};

// LVDS
&lvds_panel {
      power-supply = <&vcc3v3_lcd_n>;
      reset-gpios = <&gpio4 RK_PD2 GPIO_ACTIVE_LOW>;
      pinctrl-names = "default";
      pinctrl-0 = <&lcd_rst_gpio>;
      backlight = <&backlight4>;
};

// EDP
&edp_panel {
      power-supply = <&vcc3v3_lcd_n>;
      backlight = <&backlight5>;
};

// POWER GPIO
&vcc3v3_lcd_n {
        gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>; //屏PWR_EN脚gpio口
        enable-active-high;
};

&pinctrl {
        lcd1 {
                lcd_rst_gpio: lcd1-rst-gpio {
                        rockchip,pins = <4 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>; //up,down
                };
        };
};
2. PWM配置

dts中同时使能PWM4,PWM5,根据原理图在对应的LCD中直接引用即可。

/ {
        backlight4: backlight4 {
                compatible = "pwm-backlight";
                pwms = <&pwm4 0 25000 0>;
                brightness-levels = <
                          0  20  20  21  21  22  22  23
                         23  24  24  25  25  26  26  27
                         27  28  28  29  29  30  30  31
                         31  32  32  33  33  34  34  35
                         35  36  36  37  37  38  38  39
                         40  41  42  43  44  45  46  47
                         48  49  50  51  52  53  54  55
                         56  57  58  59  60  61  62  63
                         64  65  66  67  68  69  70  71
                         72  73  74  75  76  77  78  79
                         80  81  82  83  84  85  86  87
                         88  89  90  91  92  93  94  95
                         96  97  98  99 100 101 102 103
                        104 105 106 107 108 109 110 111
                        112 113 114 115 116 117 118 119
                        120 121 122 123 124 125 126 127
                        128 129 130 131 132 133 134 135
                        136 137 138 139 140 141 142 143
                        144 145 146 147 148 149 150 151
                        152 153 154 155 156 157 158 159
                        160 161 162 163 164 165 166 167
                        168 169 170 171 172 173 174 175
                        176 177 178 179 180 181 182 183
                        184 185 186 187 188 189 190 191
                        192 193 194 195 196 197 198 199
                        200 201 202 203 204 205 206 207
                        208 209 210 211 212 213 214 215
                        216 217 218 219 220 221 222 223
                        224 225 226 227 228 229 230 231
                        232 233 234 235 236 237 238 239
                        240 241 242 243 244 245 246 247
                        248 249 250 251 252 253 254 255
                >;
                default-brightness-level = <200>;
        };

        backlight5: backlight5 {
                compatible = "pwm-backlight";
                pwms = <&pwm5 0 25000 0>;
                brightness-levels = <
                          0  20  20  21  21  22  22  23
                         23  24  24  25  25  26  26  27
                         27  28  28  29  29  30  30  31
                         31  32  32  33  33  34  34  35
                         35  36  36  37  37  38  38  39
                         40  41  42  43  44  45  46  47
                         48  49  50  51  52  53  54  55
                         56  57  58  59  60  61  62  63
                         64  65  66  67  68  69  70  71
                         72  73  74  75  76  77  78  79
                         80  81  82  83  84  85  86  87
                         88  89  90  91  92  93  94  95
                         96  97  98  99 100 101 102 103
                        104 105 106 107 108 109 110 111
                        112 113 114 115 116 117 118 119
                        120 121 122 123 124 125 126 127
                        128 129 130 131 132 133 134 135
                        136 137 138 139 140 141 142 143
                        144 145 146 147 148 149 150 151
                        152 153 154 155 156 157 158 159
                        160 161 162 163 164 165 166 167
                        168 169 170 171 172 173 174 175
                        176 177 178 179 180 181 182 183
                        184 185 186 187 188 189 190 191
                        192 193 194 195 196 197 198 199
                        200 201 202 203 204 205 206 207
                        208 209 210 211 212 213 214 215
                        216 217 218 219 220 221 222 223
                        224 225 226 227 228 229 230 231
                        232 233 234 235 236 237 238 239
                        240 241 242 243 244 245 246 247
                        248 249 250 251 252 253 254 255
                >;
                default-brightness-level = <200>;
                enable-gpios = <&gpio0 RK_PC6 GPIO_ACTIVE_HIGH>; // 屏背光使能脚gpio口
                pinctrl-names = "default";
                pinctrl-0 = <&edp_bl_en>;
        };
};

&pwm4 {
        status = "okay";
};

&pwm5 {
        status = "okay";
};

&pinctrl {
    backlight {
        edp_bl_en: edp-bl-en {
            rockchip,pins = <0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
        };
    };
}

可根据实际需求来打开或关闭不需要的屏幕节点,一定要匹配VP通道对应所支持的屏幕类型,避免复用。

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