From 76eb23d534419db5e794699ae77f1e644f975e8c Mon Sep 17 00:00:00 2001 From: Phil Elwell 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 --- 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