linux-kernel - Re: [PATCH v2 3/3] arm64: dts: rockchip: update pinctrl names for Radxa E52C

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Message-Id: <20250819150038.874297-1-amadeus@jmu.edu.cn>
Date: Tue, 19 Aug 2025 23:00:38 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: naoki@...xa.com
Cc: amadeus@....edu.cn,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	heiko@...ech.de,
	krzk+dt@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] arm64: dts: rockchip: update pinctrl names for Radxa E52C

Hi,

> "The name of a node should be somewhat generic".
>
>   https://github.com/devicetree-org/devicetree-specification/blob/v0.4/source/chapter2-devicetree-basics.rst?plain=1#L193

Usually we use the name on the schematic. For example, the patch for e24c:

https://lore.kernel.org/lkml/20250727144409.327740-4-jonas@kwiboo.se/

```
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio0_a0_user>;
```

If this is incorrect, I will abandon the pinctrl changes for
the user key and power LED.

> > -		vcc_5v0_pwren_h: regulator-5v0-1 {
> > -		usb_otg_pwren_h: regulator-5v0-0 {

But I don't think the above is correct.

>   https://lore.kernel.org/all/20241216113052.15696-1-naoki@radxa.com/T/#u
>
> (I don't understand why this only applies to me...)

I don't know this. I thought the nodenames of pinctrl and regulator
were a bit weird, so I changed the pinctrl's.

Thanks,
Chukun

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2.25.1