linux-kernel - Re: [PATCH v3 1/3] dt-bindings: i2c: dw: Document compatible thead,th1520-i2c

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Date: Wed, 19 Jun 2024 15:37:36 +0800
From: Icenowy Zheng <uwu@...nowy.me>
To: Jarkko Nikula <jarkko.nikula@...ux.intel.com>, Thomas Bonnefille
 <thomas.bonnefille@...tlin.com>, Andi Shyti <andi.shyti@...nel.org>, Rob
 Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor
 Dooley <conor+dt@...nel.org>, Jisheng Zhang <jszhang@...nel.org>, Guo Ren
 <guoren@...nel.org>, Fu Wei <wefu@...hat.com>, Drew Fustini
 <dfustini@...storrent.com>, Emil Renner Berthing
 <emil.renner.berthing@...onical.com>, Conor Dooley <conor@...nel.org>
Cc: Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Paul Walmsley <paul.walmsley@...ive.com>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>,  Miquèl Raynal
 <miquel.raynal@...tlin.com>, linux-i2c@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v3 1/3] dt-bindings: i2c: dw: Document compatible
 thead,th1520-i2c

在 2024-06-19星期三的 09:40 +0300，Jarkko Nikula写道：
> 
> Your comment below makes me thinking is this change needed? So is it 
> enough to specify "snps,designware-i2c" for the compatible string in 
> patch 2/3?

I think it's a common practice to have a SoC-specific compatible along
with the specific compatible, in case any silicon quirk is found.

> 
> "It appears that the TH1520 I2C is already supported in the upstream 
> kernel through the Synopsis Designware I2C adapter driver."