linux-kernel - Re: [PATCH v2 2/2] ASoC: Add bindings for PCM1789

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Date:   Thu, 8 Mar 2018 09:54:40 +0100
From:   Mylène Josserand <mylene.josserand@...tlin.com>
To:     Rob Herring <robh@...nel.org>
Cc:     lgirdwood@...il.com, broonie@...nel.org, mark.rutland@....com,
        perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        alexandre.belloni@...tlin.com, thomas.petazzoni@...tlin.com,
        michael@...rulasolutions.com
Subject: Re: [PATCH v2 2/2] ASoC: Add bindings for PCM1789

Hello Rob,

Thank you for the review.

On Wed, 7 Mar 2018 16:30:48 -0600
Rob Herring <robh@...nel.org> wrote:

> On Mon, Mar 05, 2018 at 01:48:17PM +0100, Mylène Josserand wrote:
> > Add a device-tree binding for Texas Instrument's PCM1789 codec.
> > For the moment, only I2C bus is supported but SPI could be added
> > in future.
> > 
> > Signed-off-by: Mylène Josserand <mylene.josserand@...tlin.com>
> > ---
> >  Documentation/devicetree/bindings/sound/pcm1789.txt | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/sound/pcm1789.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/sound/pcm1789.txt b/Documentation/devicetree/bindings/sound/pcm1789.txt
> > new file mode 100644
> > index 000000000000..a6cdc2c83c98
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/sound/pcm1789.txt
> > @@ -0,0 +1,21 @@
> > +Texas Instruments pcm1789 DT bindings  
> 
> What function does this device provide?

Sorry, I forgot to mention this information.

> 
> > +
> > +This driver supports the I2C bus.  
> 
> Bindings describe h/w, not drivers.

True, I will reformulate it.

> 
> > +
> > +Required properties:
> > +
> > + - compatible: "ti,pcm1789"
> > +
> > +Required properties on I2C:
> > +
> > + - reg: the I2C address
> > + - reset-gpios: GPIO to control the RESET pin
> > +
> > +Examples:
> > +
> > +	codec: pcm1789@4c {  
> 
> audio-codec@4c
> 
> If that's the function...

Yep, I will change that.

> 
> > +		compatible = "ti,pcm1789";
> > +		reg = <0x4c>;
> > +		reset-gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
> > +		#sound-dai-cells = <0>;
> > +	};
> > -- 
> > 2.11.0
> >   

Thanks,

Best regards,

-- 
Mylène Josserand, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com