Corrected raspberrypi prefix, added overlays to make file & readme, ended files with newline and removed superfluous hat-name.

Author: LucasH-rp

arch/arm/boot/dts/overlays/Makefile

@@ -247,6 +247,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	rpi-fw-uart.dtbo \
 	rpi-poe.dtbo \
 	rpi-poe-plus.dtbo \
+	rpi-power-hat-b-overlay.dtbo \
+	rpi-power-hat-t-overlay.dtbo \
 	rpi-sense.dtbo \
 	rpi-sense-v2.dtbo \
 	rpi-tv.dtbo \

arch/arm/boot/dts/overlays/README

@@ -4465,6 +4465,16 @@ Params: poe_fan_temp0           Temperature (in millicelcius) at which the fan
                                 the firmware.
 
 
+Name:   rpi-power-hat-t
+Info:   Raspberry Pi Power HAT Top
+Load:   dtoverlay=rpi-power-hat-t
+Params: <None>
+
+Name:   rpi-power-hat-b
+Info:   Raspberry Pi Power HAT Bottom
+Load:   dtoverlay=rpi-power-hat-b
+Params: <None>
+
 Name:   rpi-proto
 Info:   This overlay has been renamed to proto-codec.
 Load:   <Deprecated>

arch/arm/boot/dts/overlays/rpi-power-hat-b-overlay.dts

@@ -46,18 +46,15 @@
         target-path = "/";
         __overlay__ {
             rpi_power_hat_b: rpi-power-hat-b {
-                compatible = "Raspberry Pi,rpi-power-hat-b";
+                compatible = "raspberrypi,rpi-power-hat-b";
                 #address-cells = <1>;
                 #size-cells = <0>;
 
                 // References to the I2C devices
                 power-controller = <&power_control>;
                 power1-monitor = <&pwr1_monitor>;
                 power2-monitor = <&pwr2_monitor>;
-                
-                // HAT metadata
-                hat-name = "rpi-power-hat Bottom";
             };
         };
     };
-};
+};

arch/arm/boot/dts/overlays/rpi-power-hat-t-overlay.dts

@@ -46,18 +46,15 @@
         target-path = "/";
         __overlay__ {
             rpi_power_hat_t: rpi-power-hat-t {
-                compatible = "Raspberry Pi,rpi-power-hat-t";
+                compatible = "raspberrypi,rpi-power-hat-t";
                 #address-cells = <1>;
                 #size-cells = <0>;
 
                 // References to the I2C devices
                 power-controller = <&power_control>;
                 power1-monitor = <&pwr1_monitor>;
                 power2-monitor = <&pwr2_monitor>;
-                
-                // HAT metadata
-                hat-name = "rpi-power-hat Top";
             };
         };
     };
-};
+};