linux-kernel - Re: [PATCH v6 1/2] dt-bindings: i2c: add bus-reset-gpios property

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Date: Wed, 20 Dec 2023 12:29:35 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: "wsa@...nel.org" <wsa@...nel.org>, Andi Shyti <andi.shyti@...nel.org>,
 Chris Packham <Chris.Packham@...iedtelesis.co.nz>,
 "robh+dt@...nel.org" <robh+dt@...nel.org>,
 "krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
 "conor+dt@...nel.org" <conor+dt@...nel.org>,
 "gregory.clement@...tlin.com" <gregory.clement@...tlin.com>,
 "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 1/2] dt-bindings: i2c: add bus-reset-gpios property

On 20/12/2023 12:03, wsa@...nel.org wrote:
> 
>>>>> I personally would like to see it accepted but it seems there are 
>>>>> objections to this approach. I've yet to come up with anything better to 
>>>>> offer as an alternative.
>>>>
>>>> I see. Thanks for the heads up!
>>>
>>> I'm also inclined to have this merged. A real fix might take
>>> time.
>>
>> NAK
>>
>> If you intend to merge it, then please carry:
> 
> No worries. If this is "abusing" DT, then it is not going to be merged
> by me. I am sorry for Chris, but sometimes simple problems create quite
> some fuzz because Linux hardware abstractions has not foreseen certain
> use cases. Or the APIs dealing with them didn't forsee that. We have
> been there a lot of times :/

I need the same solution for WSA884x speaker, for which Mark rejected
simple shared GPIO (even though it would work there), so I am trying to
solve it. It's basically the same case. Now, I am waiting on answer from
Sean Anderson whether he continued his work on reset-gpios controller
from two years ago. Rob wanted handling reset-gpios by generic reset
framework, which would solve these simple cases, here and mine, nicely.

Best regards,
Krzysztof