linux-kernel - Re: [PATCH v6 01/14] dt-bindings: usb: tps6598x: Add tps25750

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Message-ID: <0fe357a3-c2c7-f642-30ba-a068a9c04e66@linaro.org>
Date:   Sat, 23 Sep 2023 13:49:22 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Abdel Alkuor <alkuor@...il.com>, heikki.krogerus@...ux.intel.com,
        krzysztof.kozlowski+dt@...aro.org, bryan.odonoghue@...aro.org
Cc:     gregkh@...uxfoundation.org, robh+dt@...nel.org,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, conor+dt@...nel.org,
        ryan.eleceng@...il.com, Abdel Alkuor <abdelalkuor@...tab.com>
Subject: Re: [PATCH v6 01/14] dt-bindings: usb: tps6598x: Add tps25750

On 23/09/2023 09:39, Abdel Alkuor wrote:
> From: Abdel Alkuor <abdelalkuor@...tab.com>
> 
> TPS25750 is USB TypeC PD controller which is a subset of TPS6598x.
> 
> Signed-off-by: Abdel Alkuor <abdelalkuor@...tab.com>
> ---
> Changes in v6:
>   - Use reg property for patch address
> Changes in v5:
>   - Add tps25750 bindings
> 
>  .../devicetree/bindings/usb/ti,tps6598x.yaml  | 80 ++++++++++++++++++-
>  1 file changed, 78 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml b/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> index 5497a60cddbc..da299a2bb19e 100644
> --- a/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> +++ b/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> @@ -20,8 +20,7 @@ properties:
>      enum:
>        - ti,tps6598x
>        - apple,cd321x
> -  reg:
> -    maxItems: 1

reg must be defined in top-level.

https://elixir.bootlin.com/linux/v5.19-rc6/source/Documentation/devicetree/bindings/clock/samsung,exynos7-clock.yaml#L57

> +      - ti,tps25750
>  
>    wakeup-source: true
>  
> @@ -32,10 +31,55 @@ properties:
>      items:
>        - const: irq
>  
> +  firmware-name:
> +    description: |
> +      Should contain the name of the default patch binary
> +      file located on the firmware search path which is
> +      used to switch the controller into APP mode.
> +      This is used when tps25750 doesn't have an EEPROM
> +      connected to it.
> +    maxItems: 1
> +
>  required:
>    - compatible
>    - reg
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: ti,tps25750
> +    then:
> +      properties:
> +        reg:
> +          maxItems: 2
> +
> +        reg-names:
> +          description: |
> +            The first reg is PD device address and the second
> +            reg is I2C slave address field in PBMs input data
> +            which is used as the device address when writing the
> +            patch for TPS25750.
> +            The patch address can be any value except 0x00, 0x20,
> +            0x21, 0x22, and 0x23

Entire description is not suitable here, but should be used as
description of items in reg: (instead of maxItems).

> +          items:
> +            - const: main
> +            - const: patch-address
> +
> +        connector:
> +          required:
> +            - data-role
> +
> +      required:
> +        - connector
> +        - reg-names
> +    else:
> +      properties:
> +        reg:
> +          maxItems: 1
> +
> +

Only one blank line.

Best regards,
Krzysztof