RE: [PATCH v12 2/8] dt-bindings: media: platform: visconti: Add Toshiba Visconti Video Input Interface

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> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> Sent: Tuesday, December 17, 2024 2:43 PM
> To: ishikawa yuji(石川 悠司 ○RDC□AITC○EA開)
> <yuji2.ishikawa@xxxxxxxxxxxxx>; laurent.pinchart@xxxxxxxxxxxxxxxx;
> mchehab@xxxxxxxxxx; robh@xxxxxxxxxx; krzk+dt@xxxxxxxxxx;
> conor+dt@xxxxxxxxxx; sakari.ailus@xxxxxxxxxxxxxxx; hverkuil-cisco@xxxxxxxxx;
> iwamatsu nobuhiro(岩松 信洋 ○DITC□DIT○OST)
> <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
> Cc: linux-media@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v12 2/8] dt-bindings: media: platform: visconti: Add
> Toshiba Visconti Video Input Interface
> 
> On 17/12/2024 01:00, yuji2.ishikawa@xxxxxxxxxxxxx wrote:
> > Hello Krzysztof
> >
> > Thank you for your review
> >
> >> -----Original Message-----
> >> From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> >> Sent: Monday, November 25, 2024 7:08 PM
> >> To: ishikawa yuji(石川 悠司 ○RDC□AITC○EA開)
> >> <yuji2.ishikawa@xxxxxxxxxxxxx>; Laurent Pinchart
> >> <laurent.pinchart@xxxxxxxxxxxxxxxx>; Mauro Carvalho Chehab
> >> <mchehab@xxxxxxxxxx>; Rob Herring <robh@xxxxxxxxxx>; Krzysztof
> >> Kozlowski <krzk+dt@xxxxxxxxxx>; Conor Dooley <conor+dt@xxxxxxxxxx>;
> >> Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>; Hans Verkuil
> >> <hverkuil-cisco@xxxxxxxxx>; iwamatsu nobuhiro(岩松 信洋 ○DITC□DI
> T○OST)
> >> <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
> >> Cc: linux-media@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> >> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx
> >> Subject: Re: [PATCH v12 2/8] dt-bindings: media: platform: visconti:
> >> Add Toshiba Visconti Video Input Interface
> >>
> >> On 25/11/2024 10:21, Yuji Ishikawa wrote:
> >>> Adds the Device Tree binding documentation that allows to describe
> >>> the Video Input Interface found in Toshiba Visconti SoCs.
> >>>
> >>> Signed-off-by: Yuji Ishikawa <yuji2.ishikawa@xxxxxxxxxxxxx>
> >>> Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
> >>
> >> Why this tag stayed and other was removed? What was the reason of tag
> >> removal?
> >>
> >
> > The stayed tag is due to internal review.
> 
> Did the internal review really happened? How is it that immediately new version
> has internal review without any traces?
> 
> I have doubts this review happened in the context of reviewer's statement of
> oversight.
> 
> 
> > The removed tag is due to code's change (split of csi2rx part) after the last
> review.
> > If the code is largely changed following the instruction of another
> > reviewer after obtaining the tags, how should the tags be handled?
> 
> Drop all reviews and perform reviews on the list.
> 
> Such internal review appearing afterwards is rather a proof it you are adding
> just the tags to satisfy your process. I have no way to even verify whether that
> person performed any reasonable review or maybe just acked your patch. I
> cannot even verify that that person understands the reviewer's statement of
> oversight.
> 

I understand the importance and usage of the Reviewed-by tag.
We will continue to conduct internal reviews, but from now on, I will add the tag to reviews discussed in the open mailing list.

> 
> ...
> 
> >>>
> >>> Changelog v11:
> >>> - no change
> >>>
> >>> Changelog v12:
> >>> - remove property "clock-noncontinuous" as VIIF switches both modes
> >>> automatically
> >>> - remove property "link-frequencies" as VIIF does not use the
> >>> information
> >>
> >> Driver does not use or hardware supports only one frequency?
> >>
> >
> > My comment was incorrect.
> > It should be "Driver does not use the information"
> 
> Then this is not that helping. Maybe hardware supports only one frequency?
> 

The reason for the removal is the hardware PLL is configured using information from the sensor's V4L2_CID_PIXEL_RATE control.

> 
> Best regards,
> Krzysztof

Best regards,
Yuji Ishikawa




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