linux-kernel - Re: [PATCH 2/3] media: dt-bindings: ak7375: Add ak7345 support

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Message-ID: <0f294695fdfed60c385deadc9d030c225816b4f9.camel@mailoo.org>
Date:   Wed, 01 Nov 2023 16:29:20 +0100
From:   Vincent Knecht <vincent.knecht@...loo.org>
To:     Conor Dooley <conor@...nel.org>
Cc:     Tianshu Qiu <tian.shu.qiu@...el.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] media: dt-bindings: ak7375: Add ak7345 support

Le mercredi 01 novembre 2023 à 15:10 +0000, Conor Dooley a écrit :
> On Wed, Nov 01, 2023 at 11:22:56AM +0100, Vincent Knecht wrote:
> > Document AK7345 bindings.
> 
> The commit message should mention why this device is incompatible with
> the 7375. Something like
> 
> "Document the ak7345 voice coil motor actuator. Similar to the ak7375,
> this model has 4 unilateral phase detractors instead of 8."
> 
> Otherwise,
> Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> 
> Cheers,
> Conor.

Thank you for the review!

I don't know anything about phase detractors, nor any other details
(having found no datasheets for either of these ICs)
apart what could be infered from vendor/downstream drivers
like in the commit text for patch 3/3...

So I guess I'll send a v2 with a commit text along these lines :
Document AK7345 bindings.
Compared to AK7375, it has only 9 bits position values (instead of 12),
20 ms power-up delay (instead of 10), and no known standby register setting.