linux-kernel - Re: [PATCH 2/2] arm64: dts: mediatek: add device-tree for Genio 700 EVK board

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Message-ID: <7a036d2b-ed59-f581-d018-479cc634617e@linaro.org>
Date:   Tue, 12 Sep 2023 16:32:59 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Macpaul Lin <macpaul.lin@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Bernhard Rosenkränzer <bero@...libre.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Cc:     Bear Wang <bear.wang@...iatek.com>,
        Pablo Sun <pablo.sun@...iatek.com>,
        Macpaul Lin <macpaul@...il.com>,
        Chris-QJ Chen <chris-qj.chen@...iatek.com>
Subject: Re: [PATCH 2/2] arm64: dts: mediatek: add device-tree for Genio 700
 EVK board

On 12/09/2023 16:06, Macpaul Lin wrote:
> Add basic device-tree for the Genio 700 EVK board. The
> Genio 700 EVK is based on MediaTek MT8390 SoC.
> MT8390 hardware register maps are identical to MT8188.
> 
> The Genio 700 EVK has following features:
> 


...

> +
> +	sdio_fixed_1v8: regulator-3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "sdio_io";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		enable-active-high;
> +		regulator-always-on;
> +	};
> +
> +	sdio_fixed_3v3: regulator-4 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "sdio_card";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		gpio = <&pio 74 0>;

Use proper defines.

> +		enable-active-high;
> +		regulator-always-on;
> +	};
> +
> +	touch0_fixed_3v3: regulator-5 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "touch_3v3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		gpio = <&pio 119 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
> +
> +	usb_hub_fixed_3v3: regulator-6 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_hub_3v3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		gpio = <&pio 112 0>; /* HUB_3V3_EN */
> +		startup-delay-us = <10000>;
> +		enable-active-high;
> +	};
> +
> +	usb_hub_reset_1v8: regulator-7 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_hub_reset";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		gpio = <&pio 7 0>; /* HUB_RESET */
> +		vin-supply = <&usb_hub_fixed_3v3>;
> +	};
> +
> +	usb_p0_vbus: regulator-8 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_p0_vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		gpio = <&pio 84 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
> +
> +	usb_p1_vbus: regulator-9 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_p1_vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		gpio = <&pio 87 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
> +
> +	usb_p2_vbus: regulator-10 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_p2_vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		enable-active-high;
> +	};
> +};
> +
> +&i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c0_pins>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	touchscreen@5d {
> +		compatible = "goodix,gt9271";
> +		reg = <0x5d>;
> +		interrupt-parent = <&pio>;
> +		interrupts = <6 IRQ_TYPE_EDGE_RISING>;
> +		irq-gpios = <&pio 6 GPIO_ACTIVE_HIGH>;
> +		reset-gpios = <&pio 5 GPIO_ACTIVE_HIGH>;
> +		AVDD28-supply = <&touch0_fixed_3v3>;
> +		VDDIO-supply = <&mt6359_vio18_ldo_reg>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&touch_pins>;
> +	};
> +};
> +
> +&i2c1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c1_pins>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +};
> +
> +&i2c2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c2_pins>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c3_pins>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +};
> +
> +&i2c4 {
> +	pinctrl-names = "default", "default";

Why do you need two default entries? This should be just one, shouldn't it?



Best regards,
Krzysztof