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     1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
    2 /*
    3  * FriendlyElec NanoPi M4B board device tree source
    4  *
    5  * Copyright (c) 2020 Chen-Yu Tsai <wens@csie.org>
    6  */
    7 
    8 /dts-v1/;
    9 #include "rk3399-nanopi-m4.dts"
   10 
   11 / {
   12         model = "FriendlyElec NanoPi M4B";
   13         compatible = "friendlyarm,nanopi-m4b", "rockchip,rk3399";
   14 
   15         adc-keys {
   16                 compatible = "adc-keys";
   17                 io-channels = <&saradc 1>;
   18                 io-channel-names = "buttons";
   19                 keyup-threshold-microvolt = <1500000>;
   20                 poll-interval = <100>;
   21 
   22                 recovery {
   23                         label = "Recovery";
   24                         linux,code = <KEY_VENDOR>;
   25                         press-threshold-microvolt = <18000>;
   26                 };
   27         };
   28 };
   29 
   30 /* No USB type-C PD power manager */
   31 /delete-node/ &fusb0;
   32 
   33 &i2c4 {
   34         status = "disabled";
   35 };
   36 
   37 &u2phy0_host {
   38         phy-supply = <&vcc5v0_usb2>;
   39 };
   40 
   41 &u2phy0_otg {
   42         phy-supply = <&vbus_typec>;
   43 };
   44 
   45 &u2phy1_otg {
   46         phy-supply = <&vcc5v0_usb1>;
   47 };
   48 
   49 &vbus_typec {
   50         enable-active-high;
   51         gpios = <&gpio4 RK_PD2 GPIO_ACTIVE_HIGH>;
   52 };
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