Re: [PATCH 5/7] arm64: dts: broadcom: bcm2712: Add one more GPIO node

[Florian Fainelli <f.fainelli@gmail.com>]

On 7/30/24 23:28, Ivan T. Ivanov wrote:
> Add GPIO and related interrupt controller nodes and wire one
> of the lines to power button.
> 
> Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
> ---
>   .../boot/dts/broadcom/bcm2712-rpi-5-b.dts     | 21 +++++++++++++++++++
>   arch/arm64/boot/dts/broadcom/bcm2712.dtsi     | 21 +++++++++++++++++++
>   2 files changed, 42 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
> index 8a0d20afebfe..06e926af16b7 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
> +++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
> @@ -2,6 +2,7 @@
>   /dts-v1/;
>   
>   #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
>   #include "bcm2712.dtsi"
>   
>   / {
> @@ -44,6 +45,21 @@ sd_vcc_reg: sd-vcc-reg {
>   		enable-active-high;
>   		gpios = <&gio_aon 4 GPIO_ACTIVE_HIGH>;
>   	};
> +
> +	pwr-button {
> +		compatible = "gpio-keys";
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pwr_button_pins>;
> +		status = "okay";
> +
> +		pwr_key: pwr {
> +			label = "pwr_button";
> +			linux,code = <KEY_POWER>;
> +			gpios = <&gio 20 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <50>;
> +		};
> +	};
>   };
>   
>   /* The system UART */
> @@ -73,6 +89,11 @@ emmc_aon_cd_pins: emmc-aon-cd-pins {
>   };
>   
>   &pinctrl {
> +	pwr_button_pins: pwr-button-pins {
> +		function = "gpio";
> +		pins = "gpio20";
> +		bias-pull-up;
> +	};
>   
>   	emmc_sd_pulls: emmc-sd-pulls {
>   		pins = "emmc_cmd", "emmc_dat0", "emmc_dat1", "emmc_dat2", "emmc_dat3";
> diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> index 1099171cd435..39d2419ffce2 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> +++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> @@ -271,6 +271,27 @@ pinctrl: pinctrl@7d504100 {
>   			reg = <0x7d504100 0x30>;
>   		};
>   
> +		main_irq: intc@7d508400 {
> +			compatible = "brcm,bcm7271-l2-intc";
> +			reg = <0x7d508400 0x10>;
> +			interrupts = <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <1>;
> +		};
> +
> +		gio: gpio@7d508500 {
> +			compatible = "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>;
> +			brcm,gpio-direct;

Undocumented and unsupported property upstream, what does it do? Other 
than that, LGTM.
-- 
Florian