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Overlays: Added support for rpi-power HAT

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Added 2 overlays for the rpi-power HAT to operate in
either TOP or BOTTOM mode.
Modified makefile and readme accordingly

Signed-off-by: Lucas Hoffmann <lucas.hoffmann@raspberrypi.com>
This commit is contained in:
Lucas Hoffmann
2025-09-04 10:24:04 +01:00
committed by Dom Cobley
parent b6af60d93d
commit c195654836
4 changed files with 132 additions and 0 deletions
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2
arch/arm/boot/dts/overlays/Makefile
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@@ -247,6 +247,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
rpi-fw-uart.dtbo \
rpi-poe.dtbo \
rpi-poe-plus.dtbo \
rpi-power-hat-b.dtbo \
rpi-power-hat-t.dtbo \
rpi-sense.dtbo \
rpi-sense-v2.dtbo \
rpi-tv.dtbo \

12
arch/arm/boot/dts/overlays/README
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@@ -4465,6 +4465,18 @@ Params: poe_fan_temp0 Temperature (in millicelcius) at which the fan
the firmware.
Name: rpi-power-hat-b
Info: Raspberry Pi Power HAT Bottom
Load: dtoverlay=rpi-power-hat-b
Params: <None>
Name: rpi-power-hat-t
Info: Raspberry Pi Power HAT Top
Load: dtoverlay=rpi-power-hat-t
Params: <None>
Name: rpi-proto
Info: This overlay has been renamed to proto-codec.
Load: <Deprecated>

59
arch/arm/boot/dts/overlays/rpi-power-hat-b-overlay.dts Normal file
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@@ -0,0 +1,59 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/dts-v1/;
/plugin/;
// Overlay for the Raspberry Pi Power Hat.
// 1 of 2 overlays required for top/bottom interchangeability
/ {
compatible = "brcm,bcm2835";
fragment@0 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
power_control: fxl6408@43 {
reg = <0x43>;
compatible = "fcs,fxl6408";
gpio-controller;
#gpio-cells = <2>;
gpio-line-names =
"B1_PWR",
"B2_PWR",
"B3",
"B4",
"B5",
"B6",
"B7",
"B8";
};
pwr1_monitor: ina260@42 {
reg = <0x42>;
compatible = "ti,ina260";
};
pwr2_monitor: ina260@4c {
reg = <0x4c>;
compatible = "ti,ina260";
};
};
};
fragment@1 {
target-path = "/";
__overlay__ {
rpi_power_hat_b: rpi-power-hat-b {
compatible = "raspberrypi,rpi-power-hat-b";
// References to the I2C devices
power-controller = <&power_control>;
power1-monitor = <&pwr1_monitor>;
power2-monitor = <&pwr2_monitor>;
};
};
};
};

59
arch/arm/boot/dts/overlays/rpi-power-hat-t-overlay.dts Normal file
View File

@@ -0,0 +1,59 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/dts-v1/;
/plugin/;
// Overlay for the Raspberry Pi Power Hat.
// 2 of 2 overlays required for top/bottom interchangeability
/ {
compatible = "brcm,bcm2835";
fragment@0 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
power_control: fxl6408@44 {
reg = <0x44>;
compatible = "fcs,fxl6408";
gpio-controller;
#gpio-cells = <2>;
gpio-line-names =
"T1_PWR",
"T2_PWR",
"T3",
"T4",
"T5",
"T6",
"T7",
"T8";
};
pwr1_monitor: ina260@46 {
reg = <0x46>;
compatible = "ti,ina260";
};
pwr2_monitor: ina260@4d {
reg = <0x4d>;
compatible = "ti,ina260";
};
};
};
fragment@1 {
target-path = "/";
__overlay__ {
rpi_power_hat_t: rpi-power-hat-t {
compatible = "raspberrypi,rpi-power-hat-t";
// References to the I2C devices
power-controller = <&power_control>;
power1-monitor = <&pwr1_monitor>;
power2-monitor = <&pwr2_monitor>;
};
};
};
};