RE: [PATCH v8 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add ExynosAutov920 HS phy compatible

["Pritam Manohar Sutar" <pritam.sutar@samsung.com>]

Hi Krzysztof,

> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@kernel.org>
> Sent: 07 October 2025 11:54 AM
> To: Pritam Manohar Sutar <pritam.sutar@samsung.com>; vkoul@kernel.org;
> kishon@kernel.org; robh@kernel.org; krzk+dt@kernel.org;
> conor+dt@kernel.org; alim.akhtar@samsung.com; andre.draszik@linaro.org;
> peter.griffin@linaro.org; kauschluss@disroot.org;
> ivo.ivanov.ivanov1@gmail.com; igor.belwon@mentallysanemainliners.org;
> m.szyprowski@samsung.com; s.nawrocki@samsung.com
> Cc: linux-phy@lists.infradead.org; devicetree@vger.kernel.org; linux-
> kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-samsung-
> soc@vger.kernel.org; rosa.pila@samsung.com; dev.tailor@samsung.com;
> faraz.ata@samsung.com; muhammed.ali@samsung.com;
> selvarasu.g@samsung.com
> Subject: Re: [PATCH v8 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add
> ExynosAutov920 HS phy compatible
> 
> On 22/09/2025 14:26, Pritam Manohar Sutar wrote:
> > This phy needs 0.75v, 0.18v and 3.3v supplies for its internal
> > functionally. Power Supply's names are as per phy's User Data-Book.
> > These names, (dvdd, vdd18 and vdd33), are considered  for 0.75v, 1.8v
> > and 3.3v respectively.
> > "
> >
> >>
> >> I still cannot find constraints for the rest of properties, though.
> >
> > Sorry I didn't get it completely. Can you please elaborate on the same?
> 
> 
> Writing bindings and introductory talks elaborate on that. You add properties
> without constraints. That's not what we want. We want constraints.
> 

Have added only supplies in this patch-set. However, was going 
through schema example and it says nothing is needed to define
in terms of supply. 

ref: 
1. Documentation/devicetree/bindings/writing-schema.rst +151

... A "description" property is always required.

2. Documentation/devicetree/bindings/example-schema.yaml +135

# *-supply is always a single phandle, so nothing more to define.
foo-supply: true

Please confirm and let me know if your expectations are something 
else in terms of constraints of the properties.

> 
> Best regards,
> Krzysztof

Thank you,

Regards,
Pritam