// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree Source for the Silicon Linux RZ/G2E evaluation kit (EK874),
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* connected to an Advantech IDK-2121WR 21.5" LVDS panel
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*
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* Copyright (C) 2019 Renesas Electronics Corp.
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*/
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#include "r8a774c0-ek874.dts"
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/ {
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backlight: backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm5 0 50000>;
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brightness-levels = <0 4 8 16 32 64 128 255>;
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default-brightness-level = <6>;
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power-supply = <®_12p0v>;
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enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
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};
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panel-lvds {
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compatible = "advantech,idk-2121wr", "panel-lvds";
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width-mm = <476>;
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height-mm = <268>;
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data-mapping = "vesa-24";
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panel-timing {
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clock-frequency = <148500000>;
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hactive = <1920>;
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vactive = <1080>;
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hsync-len = <44>;
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hfront-porch = <88>;
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hback-porch = <148>;
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vfront-porch = <4>;
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vback-porch = <36>;
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vsync-len = <5>;
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};
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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dual-lvds-odd-pixels;
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panel_in0: endpoint {
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remote-endpoint = <&lvds0_out>;
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};
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};
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port@1 {
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reg = <1>;
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dual-lvds-even-pixels;
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panel_in1: endpoint {
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remote-endpoint = <&lvds1_out>;
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};
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};
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};
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};
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};
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&gpio0 {
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/*
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* When GP0_17 is low LVDS[01] are connected to the LVDS connector
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* When GP0_17 is high LVDS[01] are connected to the LT8918L
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*/
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lvds-connector-en-gpio{
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gpio-hog;
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gpios = <17 GPIO_ACTIVE_HIGH>;
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output-low;
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line-name = "lvds-connector-en-gpio";
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};
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};
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&lvds0 {
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ports {
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port@1 {
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lvds0_out: endpoint {
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remote-endpoint = <&panel_in0>;
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};
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};
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};
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};
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&lvds1 {
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status = "okay";
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clocks = <&cpg CPG_MOD 727>, <&x13_clk>, <&extal_clk>;
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clock-names = "fck", "dclkin.0", "extal";
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ports {
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port@1 {
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lvds1_out: endpoint {
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remote-endpoint = <&panel_in1>;
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};
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};
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};
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};
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&pfc {
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pwm5_pins: pwm5 {
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groups = "pwm5_a";
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function = "pwm5";
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};
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};
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&pwm5 {
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pinctrl-0 = <&pwm5_pins>;
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pinctrl-names = "default";
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status = "okay";
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};
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