adc-keys on Luckfox pico plus

• pranik

  Posts: 1

  Joined: 2025-04-07 22:29

  2025-04-07 22:43

  Hi! I'm trying to use adc-keys on board, changed rv1106-evb.dtsi by adding new keys

  Code: Select all

  // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
  /*
   * Copyright (c) 2022 Rockchip Electronics Co., Ltd.
   */
  #include "rv1106-amp.dtsi"
  #include <dt-bindings/input/input.h>
  
  / {
  	adc-keys{
                  compatible = "adc-keys";
                  io-channels = <&saradc 0>;
                  io-channel-names = "buttons";
                  poll-interval = <100>;
                  keyup-threshold-microvolt = <1700000>;
  
                  key_up-key {
                          label = "key_up";
                          linux,code = <KEY_UP>;
                          press-threshold-microvolt = <1400000>;
                  };
  
                  key_down-key {
                          label = "key_down";
                          linux,code = <KEY_DOWN>;
                          press-threshold-microvolt = <1000000>;
                  };
                  key_left-key {
                          label = "key_left";
                          linux,code = <KEY_LEFT>;
                          press-threshold-microvolt = <600000>;
                  };
                  key_right-key {
                          label = "key_right";
                          linux,code = <KEY_RIGHT>;
                          press-threshold-microvolt = <1600000>;
                  };
  };
  
  	restart-poweroff {
  		compatible = "restart-poweroff";
  	};
  };
  
  &fiq_debugger {
  	rockchip,irq-mode-enable = <1>;
  	status = "okay";
  };
  
  &gmac {
  	status = "okay";
  };
  
  &i2s0_8ch {
  	status = "okay";
  };
  
  &mpp_srv {
  	status = "okay";
  };
  
  &mpp_vcodec {
  	status = "okay";
  };
  
  &npu {
  	status = "okay";
  };
  
  &rga2 {
  	status = "okay";
  };
  
  &rkdvbm {
  	status = "okay";
  };
  
  &rkvenc {
  	status = "okay";
  };
  
  &rkvenc_pp {
  	status = "okay";
  };
  
  &rmii_phy {
  	bgs,increment = <0>;
  };
  
  &rng {
  	status = "okay";
  };
  
  &rve {
  	status = "okay";
  };
  
  &tsadc {
  	status = "okay";
  };
  
  &u2phy {
  	status = "okay";
  };
  
  &u2phy_otg {
  	status = "okay";
  };
  
  &usbdrd {
  	status = "okay";
  };
  
  &usbdrd_dwc3 {
  	extcon = <&u2phy>;
  	status = "okay";
  };

  But after that /dev/input/event0 disappear. IDK what problem is. Anyway /proc/device-tree/ shows key_down-key/, key_left-key/, etc. Is present.
  Thank you!

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