Initial commit

target/linux/bcm27xx/patches-5.10/950-0588-overlays-Allow-multiple-gpio-shutdown-instances.patch

@@ -0,0 +1,42 @@
+From 76eb23d534419db5e794699ae77f1e644f975e8c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Sun, 25 Apr 2021 21:07:03 +0100
+Subject: [PATCH] overlays: Allow multiple gpio-shutdown instances
+
+There is no reason not to support multiple gpio-shutdown signals,
+so add the necessary __override__ magic.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
++++ b/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
+@@ -24,7 +24,7 @@
+ 			// by a "pinctrl client", as is done below. See:
+ 			//   https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+ 			//   https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
+-			pin_state: shutdown_button_pins {
++			pin_state: shutdown_button_pins@3 {
+ 				brcm,pins = <3>; // gpio number
+ 				brcm,function = <0>; // 0 = input, 1 = output
+ 				brcm,pull = <2>; // 0 = none, 1 = pull down, 2 = pull up
+@@ -35,7 +35,7 @@
+ 		// Add a new device to the /soc devicetree node
+ 		target-path = "/soc";
+ 		__overlay__ {
+-			shutdown_button {
++			shutdown_button: shutdown_button@3 {
+ 				// Let the gpio-keys driver handle this device. See:
+ 				// https://www.kernel.org/doc/Documentation/devicetree/bindings/input/gpio-keys.txt
+ 				compatible = "gpio-keys";
+@@ -69,6 +69,8 @@
+ 	__overrides__ {
+ 		// Allow overriding the GPIO number.
+ 		gpio_pin = <&button>,"gpios:4",
++			   <&shutdown_button>,"reg:0",
++			   <&pin_state>,"reg:0",
+ 		           <&pin_state>,"brcm,pins:0";
+ 
+ 		// Allow changing the internal pullup/down state. 0 = none, 1 = pulldown, 2 = pullup