[PATCH 4/7] arm64: dts: broadcom: bcm2712: Add one more GPIO node

[Andrea della Porta]

From: "Ivan T. Ivanov" <iivanov at suse.de>

Add GPIO and related interrupt controller nodes and wire one
of the lines to power button.

Signed-off-by: Ivan T. Ivanov <iivanov at suse.de>
Signed-off-by: Andrea della Porta <andrea.porta at suse.com>
---
This patch is based on linux-next/master

 .../dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts  | 21 +++++++++++++++++++
 arch/arm64/boot/dts/broadcom/bcm2712.dtsi     | 12 +++++++++++
 2 files changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts
index 6091a1ff365c..f0883c903527 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts
@@ -2,6 +2,7 @@
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include "bcm2712.dtsi"
 
 / {
@@ -29,6 +30,20 @@ memory at 0 {
 		reg = <0 0 0 0x28000000>;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pwr_button_default>;
+		status = "okay";
+
+		power_button: power-button {
+			label = "pwr_button";
+			linux,code = <KEY_POWER>;
+			gpios = <&gio 20 GPIO_ACTIVE_LOW>;
+			debounce-interval = <50>;
+		};
+	};
+
 	sd_io_1v8_reg: sd-io-1v8-reg {
 		compatible = "regulator-gpio";
 		regulator-name = "vdd-sd-io";
@@ -58,6 +73,12 @@ emmc_sd_default: emmc-sd-default-state {
 		pins = "emmc_cmd", "emmc_dat0", "emmc_dat1", "emmc_dat2", "emmc_dat3";
 		bias-pull-up;
 	};
+
+	pwr_button_default: pwr-button-default-state {
+		function = "gpio";
+		pins = "gpio20";
+		bias-pull-up;
+	};
 };
 
 &pinctrl_aon {
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
index 8a517261841d..f70ec8d3dc4d 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
@@ -248,6 +248,18 @@ pinctrl: pinctrl at 7d504100 {
 			reg = <0x7d504100 0x30>;
 		};
 
+		gio: gpio at 7d508500 {
+			compatible = "brcm,bcm7445-gpio", "brcm,brcmstb-gpio";
+			reg = <0x7d508500 0x40>;
+			interrupt-parent = <&main_irq>;
+			interrupts = <0>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			brcm,gpio-bank-widths = <32 22>;
+		};
+
 		pinctrl_aon: pinctrl at 7d510700 {
 			compatible = "brcm,bcm2712c0-aon-pinctrl";
 			reg = <0x7d510700 0x20>;
-- 
2.35.3