linux-kernel - Re: [PATCH 1/5] dt-bindings: arm: keystone: add ti,j7200-sci compatible

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Date:   Thu, 30 Nov 2023 15:42:48 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Thomas Richard <thomas.richard@...tlin.com>
Cc:     Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
        gregory.clement@...tlin.com, u-kumar1@...com
Subject: Re: [PATCH 1/5] dt-bindings: arm: keystone: add ti,j7200-sci
 compatible

On Wed, Nov 29, 2023 at 03:38:04PM +0000, Conor Dooley wrote:
> On Wed, Nov 29, 2023 at 03:34:20PM +0000, Conor Dooley wrote:
> > On Wed, Nov 29, 2023 at 04:31:17PM +0100, Thomas Richard wrote:
> > > On j7200, during suspend to ram the soc is powered-off.
> > > At resume requested irqs shall be restored which is a different behavior
> > > from other platforms.
> > > 
> > > Signed-off-by: Thomas Richard <thomas.richard@...tlin.com>
> > 
> > Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> 
> Un-Acked. Your dts patch contradicts this one.
> 
> Is the programming model compatible with the existing devices? To be
> compatible, the existing device only need to support a compatible subset
> of behaviours.
> If so, this patch is wrong. If not, then the dts one is.

Given Andrew's response, it looks like the dts patch is the correct one
of the two, and this patch should document the k2g as a fallback for the
jh7200.

Cheers,
Conor.

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