linux-kernel - RE: [PATCH v4 1/6] dt-bindings: media: platform: visconti: Add Toshiba Visconti Video Input Interface bindings

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Message-ID: <TYAPR01MB62019B464730E0268B58E90492FC9@TYAPR01MB6201.jpnprd01.prod.outlook.com>
Date:   Wed, 11 Jan 2023 13:21:23 +0000
From:   <yuji2.ishikawa@...hiba.co.jp>
To:     <krzk@...nel.org>, <hverkuil@...all.nl>,
        <laurent.pinchart@...asonboard.com>, <mchehab@...nel.org>,
        <nobuhiro1.iwamatsu@...hiba.co.jp>
CC:     <linux-media@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: RE: [PATCH v4 1/6] dt-bindings: media: platform: visconti: Add
 Toshiba Visconti Video Input Interface bindings

Hello Krzysztof,

Sorry, I missed your comments following the topic of recipients list.

Below are the rest of the responses

> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: Wednesday, January 11, 2023 4:31 AM
> To: ishikawa yuji(石川 悠司 ○ＲＤＣ□ＡＩＴＣ○ＥＡ開)
> <yuji2.ishikawa@...hiba.co.jp>; Hans Verkuil <hverkuil@...all.nl>; Laurent
> Pinchart <laurent.pinchart@...asonboard.com>; Mauro Carvalho Chehab
> <mchehab@...nel.org>; iwamatsu nobuhiro(岩松 信洋 □ＳＷＣ◯ＡＣＴ)
> <nobuhiro1.iwamatsu@...hiba.co.jp>
> Cc: linux-media@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org; devicetree@...r.kernel.org
> Subject: Re: [PATCH v4 1/6] dt-bindings: media: platform: visconti: Add Toshiba
> Visconti Video Input Interface bindings
> 
> On 10/01/2023 02:41, 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@...hiba.co.jp>
> > Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
> 
> Please use scripts/get_maintainers.pl to get a list of necessary people and lists
> to CC.  It might happen, that command when run on an older kernel, gives you
> outdated entries.  Therefore please be sure you base your patches on recent
> Linux kernel.
> 
> You missed few of them, so clearly this was not sent correctly.
> 
> 
> Subject: drop second/last, redundant "bindings". The "dt-bindings"
> prefix is already stating that these are bindings.
> 
> > ---
> > Changelog v2:
> > - no change
> >
> > Changelog v3:
> > - no change
> >
> > Changelog v4:
> > - fix style problems at the v3 patch
> > - remove "index" member
> > - update example
> > ---
> >  .../bindings/media/toshiba,visconti-viif.yaml | 98
> > +++++++++++++++++++
> >  1 file changed, 98 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml
> > b/Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml
> > new file mode 100644
> > index 00000000000..71442724d1a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/toshiba,visconti-viif.ya
> > +++ ml
> > @@ -0,0 +1,98 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/toshiba,visconti-viif.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Toshiba Visconti5 SoC Video Input Interface Device Tree
> > +Bindings
> 
> Drop "Device Tree Bindings"

I'll drop it.

> 
> > +
> > +maintainers:
> > +  - Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
> > +
> > +description:
> > +  Toshiba Visconti5 SoC Video Input Interface (VIIF)
> > +  receives MIPI CSI2 video stream,
> > +  processes the stream with embedded image signal processor (L1ISP,
> > +L2ISP),
> > +  then stores pictures to main memory.
> 
> Fix wrapping.

I'll fix this.
I didn't realize a new line has been added through formatting a patch.
 
> > +
> > +properties:
> > +  compatible:
> > +    const: toshiba,visconti-viif
> 
> Compatible must be specific. You called your SoC visconti5, didn't you?
> 

The Video Input Interface hardware is likely to be used at future SoCs of
Visconti Architecture.
Does compatible have to be specific to SoC's model name 
rather than architecture name?

> > +
> > +  reg:
> > +    items:
> > +      - description: registers for capture control
> > +      - description: registers for CSI2 receiver control
> > +
> > +  interrupts:
> > +    items:
> > +      - description: Sync Interrupt
> > +      - description: Status (Error) Interrupt
> > +      - description: CSI2 Receiver Interrupt
> > +      - description: L1ISP Interrupt
> > +
> 
> 
> 
> Best regards,
> Krzysztof

Regards,
Yuji