linux-kernel - Re: [PATCH v3] ASoC: tda998x: add a codec to the HDMI transmitter

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Message-ID: <20140816140616.GN28623@sirena.org.uk>
Date:	Sat, 16 Aug 2014 15:06:16 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Jean-Francois Moine <moinejf@...e.fr>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	devicetree@...r.kernel.org, alsa-devel@...a-project.org,
	lgirdwood@...il.com, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Andrew Jackson <Andrew.Jackson@....com>
Subject: Re: [PATCH v3] ASoC: tda998x: add a codec to the HDMI transmitter

On Tue, Jul 08, 2014 at 11:40:57AM +0200, Jean-Francois Moine wrote:

>  .../devicetree/bindings/drm/i2c/tda998x.txt        |  13 ++
>  drivers/gpu/drm/i2c/Makefile                       |   2 +-
>  drivers/gpu/drm/i2c/tda998x_codec.c                | 247 +++++++++++++++++++++
>  drivers/gpu/drm/i2c/tda998x_drv.c                  |  74 ++++--
>  drivers/gpu/drm/i2c/tda998x_drv.h                  |  32 +++
>  include/drm/i2c/tda998x.h                          |   1 +

I'd expect to see the ASoC parts of this appear under sound/soc (even if
just a library that the DRM driver links against rather than as a MFD).
This should help avoid cross tree issues and surprises when people do
API changes.

> +  - audio-ports: one or two values corresponding to entries in
> +	the audio-port-names property.

What are these values?

> +  - audio-port-names: must contain "i2s", "spdif" entries
> +	matching entries in the audio-ports property.

So it's mandatory that both I2S and S/PDIF be specified?

The code looks broadly sensible in so far as it

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