linux-kernel - Re: [PATCH v5 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add ExynosAutov920 HS phy compatible

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Message-ID: <20250806234217.GA2030512-robh@kernel.org>
Date: Wed, 6 Aug 2025 18:42:17 -0500
From: Rob Herring <robh@...nel.org>
To: Pritam Manohar Sutar <pritam.sutar@...sung.com>
Cc: vkoul@...nel.org, kishon@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, alim.akhtar@...sung.com,
	andre.draszik@...aro.org, peter.griffin@...aro.org,
	kauschluss@...root.org, ivo.ivanov.ivanov1@...il.com,
	igor.belwon@...tallysanemainliners.org, m.szyprowski@...sung.com,
	s.nawrocki@...sung.com, linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, rosa.pila@...sung.com,
	dev.tailor@...sung.com, faraz.ata@...sung.com,
	muhammed.ali@...sung.com, selvarasu.g@...sung.com
Subject: Re: [PATCH v5 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add
 ExynosAutov920 HS phy compatible

On Tue, Aug 05, 2025 at 05:22:11PM +0530, Pritam Manohar Sutar wrote:
> This SoC has USB2.0 phy and supports only UTMI+ interface. This phy
> requires two clocks, named as "phy" and "ref". The required supplies for
> this phy are vdd075_usb20(0.75v), vdd18_usb20(1.8v), vdd33_usb20(3.3v).
> 
> Add a dedicated compatible string for USB HS phy found in this SoC.
> 
> Signed-off-by: Pritam Manohar Sutar <pritam.sutar@...sung.com>
> ---
>  .../bindings/phy/samsung,usb3-drd-phy.yaml    | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
> index e906403208c0..1932a2272ef9 100644
> --- a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
> @@ -34,6 +34,7 @@ properties:
>        - samsung,exynos7870-usbdrd-phy
>        - samsung,exynos850-usbdrd-phy
>        - samsung,exynos990-usbdrd-phy
> +      - samsung,exynosautov920-usbdrd-phy
>  
>    clocks:
>      minItems: 1
> @@ -110,6 +111,12 @@ properties:
>    vddh-usbdp-supply:
>      description: VDDh power supply for the USB DP phy.
>  
> +  dvdd075-usb20-supply:
> +    description: 0.75V power supply for the USB 2.0 phy.
> +
> +  vdd18-usb20-supply:
> +    description: 1.8V power supply for the USB 2.0 phy.
> +
>  required:
>    - compatible
>    - clocks
> @@ -219,6 +226,7 @@ allOf:
>                - samsung,exynos7870-usbdrd-phy
>                - samsung,exynos850-usbdrd-phy
>                - samsung,exynos990-usbdrd-phy
> +              - samsung,exynosautov920-usbdrd-phy
>      then:
>        properties:
>          clocks:
> @@ -235,6 +243,17 @@ allOf:
>  
>          reg-names:
>            maxItems: 1
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - samsung,exynosautov920-usbdrd-phy
> +    then:
> +      required:
> +        - dvdd075-usb20-supply
> +        - vdd18-usb20-supply
> +        - vdd33-usb20-supply

Presumably the existing devices don't have these new supplies, so:

else:
  properties:
    dvdd075-usb20-supply: false
    vdd18-usb20-supply: false