linux-kernel - Re: [PATCH 1/2] dt-bindings: nvmem: Remove fsl,t1023-sfp in favor of fsl,layerscape-sfp

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Date: Tue, 19 Mar 2024 17:55:04 +0000
From: Conor Dooley <conor@...nel.org>
To: Sean Anderson <sean.anderson@...ux.dev>
Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Richard Alpe <richard@...42.se>, linux-kernel@...r.kernel.org,
	Niklas Söderlund <niklas.soderlund@...natech.se>,
	Michael Walle <michael@...le.cc>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: nvmem: Remove fsl,t1023-sfp in favor of
 fsl,layerscape-sfp

On Mon, Mar 18, 2024 at 11:48:06AM -0400, Sean Anderson wrote:
> On 3/18/24 11:40, Conor Dooley wrote:
> > On Mon, Mar 18, 2024 at 11:08:00AM -0400, Sean Anderson wrote:
> >> On 3/17/24 11:10, Conor Dooley wrote:
> > 
> >> > Additionally, should
> >> > they fall back to t1023-sfp? I see that there's already some dts files
> >> > with these compatibles in them but seemingly no driver support as there
> >> > is for the t1023-sfp.
> >> 
> >> I checked the reference manuals for these processors, and all of them use TA 2.0.
> > 
> > Sounds like a fallback is suitable then, although that will require
> > updating the various dts files.
> 
> Yes, a fallback (like what is done for the T-series) would be suitable,
> but given that these devicetrees have been in-tree for eight years I
> think it would be preferable to support the existing bindings for
> compatibility purposes.

Just cos stuff snuck into the tree in dts files doesn't make it right
though, I'd rather the bindings were done correctly. I don't care if you
want to support all of the compatibles in the driver so that it works
with the existing devicetrees though, as long as you mention the
rationale in the commit message.

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