2022-12-29 10:42:52

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [RFC PATCH v2 2/3] dt-bindings: usb: generic-xhci: add Samsung Exynos compatible

On 29/12/2022 10:57, Daehwan Jung wrote:
> Add compatible for Samsung Exynos SOCs

Missing full stop. Please explain here in details the hardware.
Otherwise it looks it is not for any hardware and patch should be dropped.

Also, missing DTS. I am going to keep NAK-ing this till you provide the
user.

NAK.

>
> Signed-off-by: Daehwan Jung <[email protected]>
> ---
> Documentation/devicetree/bindings/usb/generic-xhci.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/generic-xhci.yaml b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
> index db841589fc33..f54aff477637 100644
> --- a/Documentation/devicetree/bindings/usb/generic-xhci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
> @@ -29,6 +29,8 @@ properties:
> enum:
> - brcm,xhci-brcm-v2
> - brcm,bcm7445-xhci
> + - description: Samsung Exynos SoCs with xHCI
> + const: samsung,exynos-xhci

Missing fallback.

> - description: Generic xHCI device> const: xhci-platform
> deprecated: true

Best regards,
Krzysztof


2023-01-02 08:32:55

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [RFC PATCH v2 2/3] dt-bindings: usb: generic-xhci: add Samsung Exynos compatible

On 02/01/2023 06:30, Jung Daehwan wrote:
> On Thu, Dec 29, 2022 at 11:19:09AM +0100, Krzysztof Kozlowski wrote:
>> On 29/12/2022 10:57, Daehwan Jung wrote:
>>> Add compatible for Samsung Exynos SOCs
>>
>> Missing full stop. Please explain here in details the hardware.
>> Otherwise it looks it is not for any hardware and patch should be dropped.
>>
>
> I got it. This patch may be for new feature of generic xhci not for exynos.
> I will add hardware description on next submission.
>
>> Also, missing DTS. I am going to keep NAK-ing this till you provide the
>> user.
>>
>> NAK.
>>
>
> I've added a example and checked bindings following below guides.
>
> https://docs.kernel.org/devicetree/bindings/submitting-patches.html
> https://docs.kernel.org/devicetree/bindings/writing-schema.html
>
> I have no idea that I have to also submit DTS.
> I will submit it on next submission.

I have doubts that this accurate description of hardware, therefore I
want the DTS user of these bindings which will show entire picture.

>
>>>
>>> Signed-off-by: Daehwan Jung <[email protected]>
>>> ---
>>> Documentation/devicetree/bindings/usb/generic-xhci.yaml | 2 ++
>>> 1 file changed, 2 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/usb/generic-xhci.yaml b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
>>> index db841589fc33..f54aff477637 100644
>>> --- a/Documentation/devicetree/bindings/usb/generic-xhci.yaml
>>> +++ b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
>>> @@ -29,6 +29,8 @@ properties:
>>> enum:
>>> - brcm,xhci-brcm-v2
>>> - brcm,bcm7445-xhci
>>> + - description: Samsung Exynos SoCs with xHCI
>>> + const: samsung,exynos-xhci
>>
>> Missing fallback.
>
> Modifying it like below is OK?
>
> decription: Samsung Exynos SoCs with xHCI
> items:
> - const: samsung,exynos-xhci
> - const: generic-xhci

To this comment yes, but in general this does not solve my concerns that
it does not look like real hardware at all.


Best regards,
Krzysztof