git.openwrt.org Git - openwrt/staging/nbd.git/blob

   1 From cd5681e63fb9887bd05d4ef59151d6a6b39c9d33 Mon Sep 17 00:00:00 2001
   2 From: Alexey Charkov <alchark@gmail.com>
   3 Date: Mon, 20 Jan 2025 23:22:47 +0400
   4 Subject: arm64: dts: rockchip: Enable automatic fan control on Radxa Rock 5C
   5
   6 Add the necessary cooling map to enable the kernel's thermal subsystem
   7 to manage the fan speed automatically depending on the overall SoC
   8 package temperature on Radxa Rock 5C
   9
  10 Signed-off-by: Alexey Charkov <alchark@gmail.com>
  11 Reviewed-by: Dragan Simic <dsimic@manjaro.org>
  12 Link: https://lore.kernel.org/r/20250120-rock-5c-fan-v1-2-5fb8446c981b@gmail.com
  13 Signed-off-by: Heiko Stuebner <heiko@sntech.de>
  14
  15 --- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
  16 +++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
  17 @@ -68,7 +68,7 @@
  18                 };
  19         };
  20
  21 -       fan {
  22 +       fan: fan {
  23                 compatible = "pwm-fan";
  24                 #cooling-cells = <2>;
  25                 cooling-levels = <0 24 44 64 128 192 255>;
  26 @@ -417,6 +417,36 @@
  27         };
  28  };
  29
  30 +&package_thermal {
  31 +       polling-delay = <1000>;
  32 +
  33 +       trips {
  34 +               package_fan0: package-fan0 {
  35 +                       temperature = <55000>;
  36 +                       hysteresis = <2000>;
  37 +                       type = "active";
  38 +               };
  39 +
  40 +               package_fan1: package-fan1 {
  41 +                       temperature = <65000>;
  42 +                       hysteresis = <2000>;
  43 +                       type = "active";
  44 +               };
  45 +       };
  46 +
  47 +       cooling-maps {
  48 +               map0 {
  49 +                       trip = <&package_fan0>;
  50 +                       cooling-device = <&fan THERMAL_NO_LIMIT 1>;
  51 +               };
  52 +
  53 +               map1 {
  54 +                       trip = <&package_fan1>;
  55 +                       cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
  56 +               };
  57 +       };
  58 +};
  59 +
  60  &pcie2x1l2 {
  61         pinctrl-names = "default";
  62         pinctrl-0 = <&pcie20x1_2_perstn_m0>;