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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright 2023 Toradex
*/
// Verdin AM62 single-channel LVDS
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pwm/pwm.h>
#include "k3-pinctrl.h"
/ {
compatible = "toradex,verdin-am62";
};
&{/} {
backlight_lvds_native: backlight-lvds-native {
compatible = "pwm-backlight";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2s_2_d_out_gpio>;
brightness-levels = <0 45 63 88 119 158 203 255>;
default-brightness-level = <4>;
/* Verdin I2S_2_D_OUT as GPIO (SODIMM 46) */
enable-gpios = <&main_gpio0 34 GPIO_ACTIVE_HIGH>;
/* Verdin PWM_2 (SODIMM 16) */
pwms = <&epwm0 1 6666667 PWM_POLARITY_INVERTED>;
};
panel-lvds-native {
compatible = "panel-lvds";
backlight = <&backlight_lvds_native>;
data-mapping = "vesa-24";
height-mm = <136>;
width-mm = <217>;
panel-timing {
clock-frequency = <68900000 71100000 73400000>;
de-active = <1>;
hactive = <1280 1280 1280>;
hback-porch = <23 60 71>;
hfront-porch = <23 60 71>;
hsync-active = <0>;
hsync-len = <15 40 47>;
pixelclk-active = <1>; /* positive edge */
vactive = <800 800 800>;
vback-porch = <5 7 10>;
vfront-porch = <5 7 10>;
vsync-active = <0>;
vsync-len = <6 9 12>;
};
port {
panel_lvds_native_in: endpoint {
remote-endpoint = <&oldi_out0>;
};
};
};
};
&main_pmx0 {
/* Mallow Touch RST */
pinctrl_i2s_2_d_in_gpio: main-gpio0-33-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x0088, PIN_INPUT, 7) /* (L24) GPMC0_OEn_REn.GPIO0_33 */ /* SODIMM 48 */
>;
};
/* Mallow Touch INT#*/
pinctrl_i2s_2_sync_gpio: main-gpio0-37-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x0098, PIN_INPUT, 7) /* (U23) GPMC0_WAIT0.GPIO0_37 */ /* SODIMM 44 */
>;
};
};
&dss {
status = "okay";
};
/*
* If the bridge is missing setting up dss will fail. As this bridge
* isn't available on all SKU disable it here.
* Thus having an overlay for the DSI output enabled concurrently
* with this one will not work.
*/
&dsi_bridge {
status = "disabled";
};
&dss_ports {
#address-cells = <1>;
#size-cells = <0>;
/* VP1: LVDS Output (OLDI TX 0) */
port@0 {
reg = <0>;
oldi_out0: endpoint {
remote-endpoint = <&panel_lvds_native_in>;
};
};
};
/* Verdin PWM_1, PWM_2 */
&epwm0 {
status = "okay";
};
/* Verdin I2C_2_DSI */
&main_i2c2 {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
touch@4a {
compatible = "atmel,maxtouch";
reg = <0x4a>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2s_2_d_in_gpio>, <&pinctrl_i2s_2_sync_gpio>;
/* Verdin I2S_2_SYNC as GPIO (SODIMM 44) */
interrupt-parent = <&main_gpio0>;
interrupts = <37 IRQ_TYPE_EDGE_FALLING>;
/* Verdin I2S_2_D_IN as GPIO(SODIMM 48) */
reset-gpios = <&main_gpio0 33 GPIO_ACTIVE_LOW>;
};
};
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