linux-kernel - Re: [PATCH v4 1/8] ASoC: dt-bindings: add rockchip tranceiver bindings

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Date:	Fri, 09 Oct 2015 13:52:08 +0200
From:	Sjoerd Simons <sjoerd.simons@...labora.co.uk>
To:	Rob Herring <robh@...nel.org>
Cc:	linux-rockchip@...ts.infradead.org,
	Jaroslav Kysela <perex@...ex.cz>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Linux-ALSA <alsa-devel@...a-project.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Mark Brown <broonie@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Takashi Iwai <tiwai@...e.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Russell King <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 1/8] ASoC: dt-bindings: add rockchip tranceiver
 bindings

Hey Rob,

On Thu, 2015-10-08 at 11:50 -0500, Rob Herring wrote:
> On Thu, Oct 8, 2015 at 8:31 AM, Sjoerd Simons
> <sjoerd.simons@...labora.co.uk> wrote:
> > Add devicetree bindings for the spdif tranceiver found on
> > found on rk3066, rk3188 and rk3288 SoCs
> > 
> > Signed-off-by: Sjoerd Simons <sjoerd.simons@...labora.co.uk>
> > 
> > ---
> > 
> > Changes in v4:
> > - Require rockchip,grf on RK3288 as the 8 channel solution has to
> > be
> >   selected on that SoC
> > - Make the compatibility string one of a known list rather then
> >   requiring a precise list of options.
> > - Change the clock names to hclk and mclk instead of spdif_hclk and
> >   spdif_mclk to better match the implementation and data sheets.
> > 
> > Changes in v3: None
> > Changes in v2: None
> > 
> >  .../devicetree/bindings/sound/rockchip-spdif.txt   | 44
> > ++++++++++++++++++++++
> >  1 file changed, 44 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/sound/rockchip-spdif.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/sound/rockchip
> > -spdif.txt b/Documentation/devicetree/bindings/sound/rockchip
> > -spdif.txt
> > new file mode 100644
> > index 0000000..33dd82c
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
> > @@ -0,0 +1,44 @@
> > +* Rockchip SPDIF transceiver
> > +
> > +The S/PDIF audio block is a stereo transceiver that allows the
> > +processor to receive and transmit digital audio via an coaxial
> > cable or
> > +a fibre cable.
> > +
> > +Required properties:
> > +
> > +- compatible: should be one of the following:
> > +   - "rockchip,rk3288-spdif", "rockchip,rk3188-spdif" or
> > +     "rockchip,rk3066-spdif"
> > +- reg: physical base address of the controller and length of
> > memory mapped
> > +  region.
> > +- interrupts: should contain the SPDIF interrupt.
> 
> > +- #address-cells: should be 1.
> > +- #size-cells: should be 0.
> 
> Why do you need these? Are you going to have sub nodes?

Oh good spot, it looks like I indeed don't need this. (for reference,
this came from the rockchip i2s' drivers device-tree documentation and
i mindlessly left it in).

Thanks!,

-- 
Sjoerd Simons
Collabora Ltd.
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