From: Icenowy Zheng <icenowy@aosc.io>
To: Samuel Holland <samuel@sholland.org>,
Mark Brown <broonie@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maxime Ripard <mripard@kernel.org>
Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: spi: sun6i: add DT bindings for Allwinner R329 SPI
Date: Sat, 23 Apr 2022 08:10:31 +0800 [thread overview]
Message-ID: <39659fd3a9c75c8ad1653c2ef34049b94595170b.camel@aosc.io> (raw)
In-Reply-To: <9ae7d1ee-4e2d-f3c1-f55f-e96b0e449b63@sholland.org>
在 2022-04-22星期五的 18:49 -0500，Samuel Holland写道：
> On 4/22/22 10:56 AM, icenowy@outlook.com wrote:
> > From: Icenowy Zheng <icenowy@aosc.io>
> >
> > Allwinner R329 SPI has two controllers, and the second one has
> > helper
> > functions for MIPI-DBI Type C.
> >
> > Add compatible strings for these controllers
> >
> > Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> > ---
> > .../devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml |
> > 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun6i-
> > a31-spi.yaml
> > b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-
> > spi.yaml
> > index ca4c95345a49..6354635241fc 100644
> > --- a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-
> > spi.yaml
> > +++ b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-
> > spi.yaml
> > @@ -21,6 +21,8 @@ properties:
> > oneOf:
> > - const: allwinner,sun6i-a31-spi
> > - const: allwinner,sun8i-h3-spi
> > + - const: allwinner,sun50i-r329-spi
> > + - const: allwinner,sun50i-r329-spi-dbi
>
> As far as I'm aware, the SPI portion of the DBI controller is
> register-compatible with the regular SPI controller. So I would
> expect using
> that as a fallback compatible for the DBI variant.
This sounds reasonable.
>
> Regards,
> Samuel
>
> > - items:
> > - enum:
> > - allwinner,sun8i-r40-spi
> >
>
next prev parent reply other threads:[~2022-04-23 7:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220422155639.1071645-1-icenowy@outlook.com>
2022-04-22 15:56 ` [PATCH 1/4] dt-bindings: spi: sun6i: add DT bindings for Allwinner R329 SPI icenowy
2022-04-22 23:49 ` Samuel Holland
2022-04-23 0:10 ` Icenowy Zheng [this message]
2022-04-22 15:56 ` [PATCH 2/4] spi: sun6i: change OF match data to a struct icenowy
2022-04-22 23:50 ` Samuel Holland
2022-04-22 15:56 ` [PATCH 3/4] spi: sun6i: add quirk for in-controller clock divider icenowy
2022-04-22 23:54 ` Samuel Holland
2022-04-22 23:57 ` Icenowy Zheng
2022-04-22 15:56 ` [PATCH 4/4] spi: sun6i: add support for R329 SPI controllers icenowy
2022-04-22 23:59 ` Samuel Holland
2022-04-23 0:01 ` Icenowy Zheng
2022-04-23 0:07 ` Icenowy Zheng
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