ARM: dts: rockchip: add eDP/panel display device nodes for rk3288-evb

The default eDP panel on RK3288 EVB board is LG LP079QX1-SP0V TFT LCD,
we haven't declared the panel regulator in the 'panel-simple' device
node here, so the specific board like ACT8846 / RK8080 need to support
the panel power supply.

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

1 files changed, 44 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 963365d12208..d59208b5eb6c 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -48,7 +48,7 @@
                 reg = <0x0 0x80000000>;
         };
 
-        backlight {
+        backlight: backlight {
                 compatible = "pwm-backlight";
                 brightness-levels = <
                           0   1   2   3   4   5   6   7
@@ -97,6 +97,21 @@
                 #clock-cells = <0>;
         };
 
+        panel: panel {
+                compatible ="lg,lp079qx1-sp0v", "simple-panel";
+                backlight = <&backlight>;
+                enable-gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>;
+                pinctrl-0 = <&lcd_cs>;
+
+                ports {
+                        panel_in: port {
+                                panel_in_edp: endpoint {
+                                        remote-endpoint = <&edp_out_panel>;
+                                };
+                        };
+                };
+        };
+
         gpio-keys {
                 compatible = "gpio-keys";
                 autorepeat;
@@ -170,6 +185,28 @@
         cpu0-supply = <&vdd_cpu>;
 };
 
+&edp {
+        force-hpd;
+        status = "okay";
+
+        ports {
+                edp_out: port@1 {
+                        reg = <1>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+
+                        edp_out_panel: endpoint {
+                                reg = <0>;
+                                remote-endpoint = <&panel_in_edp>;
+                        };
+                };
+        };
+};
+
+&edp_phy {
+        status = "okay";
+};
+
 &emmc {
         bus-width = <8>;
         cap-mmc-highspeed;
@@ -280,6 +317,12 @@
                 };
         };
 
+        lcd {
+                lcd_cs: lcd-cs {
+                        rockchip,pins = <7 4 RK_FUNC_GPIO &pcfg_pull_none>;
+                };
+        };
+
         pmic {
                 pmic_int: pmic-int {
                         rockchip,pins = <RK_GPIO0 4 RK_FUNC_GPIO &pcfg_pull_up>;