arm64: dts: imx8mp-phyboard-pollux-rdk: add etml panel support

The imx8mp-phyboard-pollux has on-board lvds interface connections. An
edt,etml1010g3dra panel is supported for this interface. Add device tree
nodes for backlight and panel.

Signed-off-by: Yannic Moog <y.moog@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
index c8640cac3edceb15b6531bf2ad33aee4c150171b..9e8afceba65eb8c79224c94ace5acb3b3f688a16 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
@@ -19,6 +19,30 @@
                stdout-path = &uart1;
        };
 
+       backlight_lvds: backlight {
+               compatible = "pwm-backlight";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_lvds1>;
+               brightness-levels = <0 4 8 16 32 64 128 255>;
+               default-brightness-level = <11>;
+               enable-gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
+               num-interpolated-steps = <2>;
+               power-supply = <&reg_lvds1_reg_en>;
+               pwms = <&pwm3 0 50000 0>;
+       };
+
+       panel1_lvds: panel-lvds {
+               compatible = "edt,etml1010g3dra";
+               backlight = <&backlight_lvds>;
+               power-supply = <&reg_vcc_3v3_sw>;
+
+               port {
+                       panel1_in: endpoint {
+                               remote-endpoint = <&ldb_lvds_ch1>;
+                       };
+               };
+       };
+
        reg_can1_stby: regulator-can1-stby {
                compatible = "regulator-fixed";
                pinctrl-names = "default";
@@ -39,6 +63,15 @@
                regulator-name = "can2-stby";
        };
 
+       reg_lvds1_reg_en: regulator-lvds1 {
+               compatible = "regulator-fixed";
+               enable-active-high;
+               gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+               regulator-max-microvolt = <1200000>;
+               regulator-min-microvolt = <1200000>;
+               regulator-name = "lvds1_reg_en";
+       };
+
        reg_usb1_vbus: regulator-usb1-vbus {
                compatible = "regulator-fixed";
                pinctrl-names = "default";
@@ -61,6 +94,13 @@
                startup-delay-us = <100>;
                off-on-delay-us = <12000>;
        };
+
+       reg_vcc_3v3_sw: regulator-vcc-3v3-sw {
+               compatible = "regulator-fixed";
+               regulator-name = "VCC_3V3_SW";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
 };
 
 &eqos {
@@ -135,10 +175,32 @@
        };
 };
 
+&lcdif2 {
+       status = "okay";
+};
+
+&lvds_bridge {
+       status = "okay";
+
+       ports {
+               port@2 {
+                       ldb_lvds_ch1: endpoint {
+                               remote-endpoint = <&panel1_in>;
+                       };
+               };
+       };
+};
+
 &snvs_pwrkey {
        status = "okay";
 };
 
+&pwm3 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_pwm3>;
+};
+
 /* debug console */
 &uart1 {
        pinctrl-names = "default";
@@ -289,6 +351,18 @@
                >;
        };
 
+       pinctrl_lvds1: lvds1grp {
+               fsl,pins = <
+                       MX8MP_IOMUXC_SD2_WP__GPIO2_IO20         0x12
+               >;
+       };
+
+       pinctrl_pwm3: pwm3grp {
+               fsl,pins = <
+                       MX8MP_IOMUXC_SPDIF_TX__PWM3_OUT         0x12
+               >;
+       };
+
        pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
                fsl,pins = <
                        MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19    0x40