linux-kernel - Re:Re: [PATCH 3/4] arm64: dts: rockchip: rename vcc5v0_usb30_host regulator for Cool Pi CM5 EVB

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Date: Wed, 31 Jan 2024 20:21:56 +0800 (CST)
From: "Andy Yan" <andyshrk@....com>
To: "Dragan Simic" <dsimic@...jaro.org>
Cc: Heiko Stübner <heiko@...ech.de>, 
	krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org
Subject: Re:Re: [PATCH 3/4] arm64: dts: rockchip: rename vcc5v0_usb30_host
 regulator for Cool Pi CM5 EVB


Hi Heiko：

在 2024-01-27 21:09:46，"Dragan Simic" <dsimic@...jaro.org> 写道：
>On 2024-01-27 13:15, Andy Yan wrote:
>> At 2024-01-27 18:36:40, "Heiko Stübner" <heiko@...ech.de> wrote:
>>> Am Samstag, 27. Januar 2024, 10:20:33 CET schrieb Andy Yan:
>>>> According to the schematic, this regulator is used both for USB30 and
>>>> USB20, so give it a more appropriate name.
>>> 
>>> I don't have the schematics, so I'll need you to answer this, but what
>>> is the regulator called _in_ the schematics?
>> 
>> There are two regulators called VCC50_USB_HOST1 and VCC50_USB_HOST2,
>> and they are both controlled by GPIO1_D5
>> They both for two usb 2.0 hosts,  not usb 30, the schematics make
>> me a bit confused.
>
>In that case, I'd say that renaming the regulator to vcc5v0_usb_host is
>fine, but there should also be a comment in the board dts file that it's
>actually two separate regulators.

How do you feel about this ？ Or some other style like：
vcc5v0_usb_host1: vcc5v0_usb_host2：vcc5v0-usb-host-regulator {


>
>>> I.e. we want regulators to really be named the same as in the 
>>> schematic
>>> so people can look up thing from the dts in the schematics and the 
>>> other
>>> way around too.
>
>Ah, that's very helpful.
>
>>>> Fixes: 791c154c3982 ("arm64: dts: rockchip: Add support for rk3588 
>>>> based board Cool Pi CM5 EVB")
>>>> Signed-off-by: Andy Yan <andyshrk@....com>
>>>> ---
>>>> 
>>>>  arch/arm64/boot/dts/rockchip/rk3588-coolpi-cm5-evb.dts | 6 +++---
>>>>  1 file changed, 3 insertions(+), 3 deletions(-)
>>>> 
>>>> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-coolpi-cm5-evb.dts 
>>>> b/arch/arm64/boot/dts/rockchip/rk3588-coolpi-cm5-evb.dts
>>>> index 1b5681fe0471..5f42f1065d73 100644
>>>> --- a/arch/arm64/boot/dts/rockchip/rk3588-coolpi-cm5-evb.dts
>>>> +++ b/arch/arm64/boot/dts/rockchip/rk3588-coolpi-cm5-evb.dts
>>>> @@ -84,7 +84,7 @@ vcc3v3_lcd: vcc3v3-lcd-regulator {
>>>>  		vin-supply = <&vcc3v3_sys>;
>>>>  	};
>>>> 
>>>> -	vcc5v0_usb30_host: vcc5v0-usb30-host-regulator {
>>>> +	vcc5v0_usb_host: vcc5v0-usb-host-regulator {
>>>>  		compatible = "regulator-fixed";
>>>>  		regulator-name = "vcc5v0_host";
>>>>  		regulator-boot-on;
>>>> @@ -200,12 +200,12 @@ &u2phy3 {
>>>>  };
>>>> 
>>>>  &u2phy2_host {
>>>> -	phy-supply = <&vcc5v0_usb30_host>;
>>>> +	phy-supply = <&vcc5v0_usb_host>;
>>>>  	status = "okay";
>>>>  };
>>>> 
>>>>  &u2phy3_host {
>>>> -	phy-supply = <&vcc5v0_usb30_host>;
>>>> +	phy-supply = <&vcc5v0_usb_host>;
>>>>  	status = "okay";
>>>>  };
>
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