linux-kernel - Re: [PATCH v2 14/15] spi: dt-bindings: snps,dw-ahb-ssi: Add generic dw-ahb-ssi version

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Message-ID: <CAHyZL-c--gtWUHjBwnKcy6fSUu7yCUaiEYqK7kKMtwnakwR6jw@mail.gmail.com>
Date:   Tue, 13 Dec 2022 17:47:53 +0000
From:   Sudip Mukherjee <sudip.mukherjee@...ive.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        jude.onyenegecha@...ive.com, ben.dooks@...ive.com,
        jeegar.lakhani@...ive.com, linux-spi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH v2 14/15] spi: dt-bindings: snps,dw-ahb-ssi: Add generic
 dw-ahb-ssi version

On Tue, Dec 13, 2022 at 4:59 PM Mark Brown <broonie@...nel.org> wrote:
>
> On Tue, Dec 13, 2022 at 10:32:09AM -0600, Rob Herring wrote:
> > On Mon, Dec 12, 2022 at 06:07:31PM +0000, Sudip Mukherjee wrote:
>
> > > Add new snps,dw-ahb-ssi version to the bindings.
>
> > Really, this should probably only be a fallback with an SoC specific
> > compatible. Future quirk properties which are not board specific only
> > will be rejected. You've been warned.
>
> Given how widely used DesignWare stuff is and usage in FPGAs it does
> seem reasonable to have compatibles for just the IP rather than SoC
> specific ones - we do have quirked versions that have been modified but
> these are things that people manage to deploy without needing that and
> SoC specific compatibles for FPGA instantiations would get painful.

Also, this patchset adds the autodetect procedure as discussed in the review
of the previous series at
https://lore.kernel.org/lkml/20220826233116.uulisbo663cxiadt@mobilestation/

So, we should be able to replace "snps,dw-apb-ssi" and
"snps,dwc-ssi-1.01a" with "snps,dw-ahb-ssi" after this.
And, also this generic compatible has been tested with the new 1.03a
version we are working with, which was
mentioned in my v1 at
https://lore.kernel.org/lkml/20220826233305.5ugpukokzldum7y5@mobilestation/

-- 
Regards
Sudip