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From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Rob Herring <robh@kernel.org>
Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Arnd Bergmann <arnd@arndb.de>, Chas Williams <3chas3@gmail.com>,
	Codrin Ciubotariu <codrin.ciubotariu@microchip.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jaroslav Kysela <perex@perex.cz>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Ludovic Desroches <ludovic.desroches@microchip.com>,
	Mark Brown <broonie@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Nicolas Ferre <nicolas.ferre@microchip.com>,
	Takashi Iwai <tiwai@suse.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/6] dt-bindings: misc: atmel-ssc: LRCLK from TF/RF pin option
Date: Wed, 28 Aug 2019 15:02:52 +0200	[thread overview]
Message-ID: <20190828130252.GD20202@qmqm.qmqm.pl> (raw)
In-Reply-To: <20190827223716.GA31605@bogus>

On Tue, Aug 27, 2019 at 05:37:16PM -0500, Rob Herring wrote:
> On Sat, Aug 24, 2019 at 10:26:55PM +0200, Michał Mirosław wrote:
> > Add single-pin LRCLK source options for Atmel SSC module.
> > 
> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> > 
> > ---
> >   v2: split from implementation patch
> > 
> > ---
> >  Documentation/devicetree/bindings/misc/atmel-ssc.txt | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> > index f9fb412642fe..c98e96dbec3a 100644
> > --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> > +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> > @@ -24,6 +24,11 @@ Optional properties:
> >         this parameter to choose where the clock from.
> >       - By default the clock is from TK pin, if the clock from RK pin, this
> >         property is needed.
> > +  - atmel,lrclk-from-tf-pin: bool property.
> > +  - atmel,lrclk-from-rf-pin: bool property.
> > +     - SSC in slave mode gets LRCLK from RF for receive and TF for transmit
> > +       data direction. This property makes both use single TF (or RF) pin
> > +       as LRCLK. At most one can be present.
> 
> A single property taking 1 of possible 2 values would prevent the error 
> of more than 1 property present.

It still would need a validation check in the code, though: you
could put wrong value then.  It seems more consistent with the
existing parameters to have two bool properties.

Best Regards,
Michał Mirosław

  reply	other threads:[~2019-08-28 13:02 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-24 20:26 [PATCH v2 0/6] ] ASoC: atmel: extend SSC support Michał Mirosław
2019-08-24 20:26 ` [PATCH v2 1/6] ASoC: atmel: enable SOC_SSC_PDC and SOC_SSC_DMA in Kconfig Michał Mirosław
2019-08-26 13:45   ` Codrin.Ciubotariu
2019-08-26 14:23   ` Alexandre Belloni
2019-08-24 20:26 ` [PATCH v2 2/6] ASoC: atmel_ssc_dai: rework DAI format configuration Michał Mirosław
2019-08-26 14:04   ` Codrin.Ciubotariu
2019-08-24 20:26 ` [PATCH v2 3/6] ASoC: atmel_ssc_dai: implement left-justified data mode Michał Mirosław
2019-08-26 14:10   ` Codrin.Ciubotariu
2019-08-24 20:26 ` [PATCH v2 4/6] dt-bindings: misc: atmel-ssc: LRCLK from TF/RF pin option Michał Mirosław
2019-08-27 22:37   ` Rob Herring
2019-08-28 13:02     ` Michał Mirosław [this message]
2019-08-28 18:34       ` Rob Herring
2019-08-24 20:26 ` [PATCH v2 5/6] misc: atmel-ssc: get LRCLK pin selection from DT Michał Mirosław
2019-08-26 14:38   ` Codrin.Ciubotariu
2019-08-24 20:26 ` [PATCH v2 6/6] ASoC: atmel_ssc_dai: Enable shared FSYNC source in frame-slave mode Michał Mirosław
2019-08-26 15:05   ` Codrin.Ciubotariu
2019-09-08 13:39     ` [alsa-devel] " mirq-linux

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