linux-kernel - Re: [PATCH v3 2/4] dt-bindings: mmc: Add support for BCM2712 SD host controller

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Date: Tue, 21 May 2024 14:52:20 +0200
From: Andrea della Porta <andrea.porta@...e.com>
To: Stefan Wahren <wahrenst@....net>
Cc: Andrea della Porta <andrea.porta@...e.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
	Marc Zyngier <maz@...nel.org>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kamal Dasu <kamal.dasu@...adcom.com>,
	Al Cooper <alcooperx@...il.com>, devicetree@...r.kernel.org,
	linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org
Subject: Re: [PATCH v3 2/4] dt-bindings: mmc: Add support for BCM2712 SD host
 controller

On 13:56 Tue 21 May     , Stefan Wahren wrote:
> Hi Andrea,
> 
> Am 21.05.24 um 10:35 schrieb Andrea della Porta:
> > The BCM2712 has an SDHCI capable host interface similar to the one found
> > in other STB chipsets. Add the relevant compatible string.
> > 
> > Signed-off-by: Andrea della Porta <andrea.porta@...e.com>
> > ---
> >   Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml | 4 ++++
> >   1 file changed, 4 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
> > index cbd3d6c6c77f..d584a7ea707a 100644
> > --- a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
> > +++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
> > @@ -13,6 +13,10 @@ maintainers:
> >   properties:
> >     compatible:
> >       oneOf:
> > +      - items:
> > +          - enum:
> > +              - brcm,bcm2712-sdhci
> > +          - const: brcm,sdhci-brcmstb
> sorry i didn't noticed in V2, but why can't we just extend the second
> items list?

Hi Stefan,
I initially thought that the two different item lists represent two
different controller families, but now that you point that out, I'm more
and more convinced that probably we can shorten the representation as
you are suggesting, adding 'brcm,bcm2712-sdhci' to the second item list
enum. Will be so in V4.

Many thanks,
Andrea

> >         - items:
> >             - enum:
> >                 - brcm,bcm7216-sdhci
>