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raspberry-pi-4: add poe-plus-hat, update poe-hat, use dtmerge instead of ftoverlay

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This commit is contained in:
Karolis Stasaitis 2022-08-07 11:16:37 +02:00
parent ea3efc80f8
commit 128dad1c8d
5 changed files with 343 additions and 15 deletions
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81
raspberry-pi/4/poe-hat.nix
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@ -1,6 +1,6 @@
{ config, lib, pkgs, ... }:
let
let
cfg = config.hardware.raspberry-pi."4".poe-hat;
in {
options.hardware = {
@ -12,10 +12,11 @@ in {
};
config = lib.mkIf cfg.enable {
# Configure for modesetting in the device tree
hardware.raspberry-pi."4".apply-overlays-dtmerge.enable = lib.mkDefault true;
hardware.deviceTree = {
overlays = [
# Equivalent to: https://github.com/raspberrypi/linux/blob/rpi-5.10.y/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
# Equivalent to: https://github.com/raspberrypi/linux/blob/rpi-5.15.y/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
{
name = "rpi-poe-overlay";
dtsText = ''
@ -31,14 +32,11 @@ in {
fragment@0 {
target-path = "/";
__overlay__ {
fan0: rpi-poe-fan@0 {
compatible = "raspberrypi,rpi-poe-fan";
firmware = <&firmware>;
cooling-min-state = <0>;
cooling-max-state = <4>;
#cooling-cells = <2>;
fan: pwm-fan {
compatible = "pwm-fan";
cooling-levels = <0 1 10 100 255>;
status = "okay";
#cooling-cells = <2>;
pwms = <&fwpwm 0 80000>;
};
};
};
@ -71,19 +69,19 @@ in {
cooling-maps {
map0 {
trip = <&trip0>;
cooling-device = <&fan0 0 1>;
cooling-device = <&fan 0 1>;
};
map1 {
trip = <&trip1>;
cooling-device = <&fan0 1 2>;
cooling-device = <&fan 1 2>;
};
map2 {
trip = <&trip2>;
cooling-device = <&fan0 2 3>;
cooling-device = <&fan 2 3>;
};
map3 {
trip = <&trip3>;
cooling-device = <&fan0 3 4>;
cooling-device = <&fan 3 4>;
};
};
};
@ -91,7 +89,7 @@ in {
fragment@2 {
target-path = "/__overrides__";
__overlay__ {
params: __overlay__ {
poe_fan_temp0 = <&trip0>,"temperature:0";
poe_fan_temp0_hyst = <&trip0>,"hysteresis:0";
poe_fan_temp1 = <&trip1>,"temperature:0";
@ -100,6 +98,54 @@ in {
poe_fan_temp2_hyst = <&trip2>,"hysteresis:0";
poe_fan_temp3 = <&trip3>,"temperature:0";
poe_fan_temp3_hyst = <&trip3>,"hysteresis:0";
poe_fan_i2c = <&fwpwm>,"status=disabled",
<&poe_mfd>,"status=okay",
<&fan>,"pwms:0=",<&poe_mfd_pwm>;
};
};
fragment@3 {
target = <&firmware>;
__overlay__ {
fwpwm: pwm {
compatible = "raspberrypi,firmware-poe-pwm";
#pwm-cells = <2>;
};
};
};
fragment@4 {
target = <&i2c0>;
i2c_bus: __overlay__ {
#address-cells = <1>;
#size-cells = <0>;
poe_mfd: poe@51 {
compatible = "raspberrypi,poe-core";
reg = <0x51>;
status = "disabled";
poe_mfd_pwm: poe_pwm@f0 {
compatible = "raspberrypi,poe-pwm";
reg = <0xf0>;
status = "okay";
#pwm-cells = <2>;
};
};
};
};
fragment@5 {
target = <&i2c0if>;
__dormant__ {
status = "okay";
};
};
fragment@6 {
target = <&i2c0mux>;
__dormant__ {
status = "okay";
};
};
@ -112,6 +158,11 @@ in {
poe_fan_temp2_hyst = <&trip2>,"hysteresis:0";
poe_fan_temp3 = <&trip3>,"temperature:0";
poe_fan_temp3_hyst = <&trip3>,"hysteresis:0";
i2c = <0>, "+5+6",
<&fwpwm>,"status=disabled",
<&i2c_bus>,"status=okay",
<&poe_mfd>,"status=okay",
<&fan>,"pwms:0=",<&poe_mfd_pwm>;
};
};
'';