netdev - Re: [PATCH v2 1/2] dt: bindings: add dt entry for XO calibration support

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Date:   Wed, 1 Feb 2023 11:20:07 -0600
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Youghandhar Chintala <quic_youghand@...cinc.com>, kvalo@...nel.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, krzysztof.kozlowski+dt@...aro.org,
        ath11k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt: bindings: add dt entry for XO calibration
 support

On Tue, Jan 31, 2023 at 07:02:16PM +0100, Krzysztof Kozlowski wrote:
> On 31/01/2023 15:03, Youghandhar Chintala wrote:
> > Add dt binding to get XO calibration data support for Wi-Fi RF clock.
> 
> Use subject prefixes matching the subsystem (which you can get for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching).
> Hint: dt-bindings: net: qcom,ath11k:
> 
> > 
> > Signed-off-by: Youghandhar Chintala <quic_youghand@...cinc.com>
> > ---
> >  .../devicetree/bindings/net/wireless/qcom,ath11k.yaml         | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
> > index f7cf135aa37f..205ee949daba 100644
> > --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
> > +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
> > @@ -41,6 +41,10 @@ properties:
> >          * reg
> >          * reg-names
> >  
> > +  xo-cal-data:
> > +    description:
> > +      XO cal offset to be configured in XO trim register
> 
> Missing type. I also do not understand what's this and why some register
> offset should be stored in DT. Please give us some justification why
> this is suitable for DT.

I think that's a voltage offset or something, but you are right, we 
shouldn't have to guess.

It needs a vendor prefix, too.

Rob