linux-kernel - Re: [RFC PATCH 0/6] Those patches is used for dw

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Date:	Mon, 15 Dec 2014 10:38:30 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Yakir Yang <ykk@...k-chips.com>
Cc:	Philipp Zabel <p.zabel@...gutronix.de>, Zubair.Kakakhel@...tec.com,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Heiko Stuebner <heiko@...ech.de>,
	Daniel Kurtz <djkurtz@...omium.org>,
	Sonny Rao <sonnyrao@...omium.org>,
	Dylan Reid <dgreid@...omium.org>,
	Xu Jianqun <jay.xu@...k-chips.com>,
	Stéphane Marchesin <marcheu@...omium.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Brian Austin <brian.austin@...rus.com>,
	Bard Liao <bardliao@...ltek.com>,
	Max Filippov <jcmvbkbc@...il.com>,
	Oder Chiou <oder_chiou@...ltek.com>,
	alsa-devel@...a-project.org, Arnd Bergmann <arnd@...db.de>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	David Airlie <airlied@...ux.ie>, Sean Cross <xobs@...agi.com>,
	Grant Likely <grant.likely@...aro.org>,
	linux-rockchip@...ts.infradead.org,
	Pawel Moll <pawel.moll@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ben Zhang <benzh@...omium.org>, devicetree@...r.kernel.org,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	Jaroslav Kysela <perex@...ex.cz>,
	Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.de>,
	Mark Rutland <mark.rutland@....com>, Jyri Sarha <jsarha@...com>
Subject: Re: [RFC PATCH 0/6] Those patches is used for dw_hdmi audio.

On Mon, Dec 15, 2014 at 10:11:28AM +0800, Yakir Yang wrote:
> 
> rk3288 use Designware HDMI IP, Designware HDMI supports four interfaces to
> config hdmi audio(I2S, S/PDIF, Generic Parallel Audio, AHB Audio DMA), but
> rk3288 only support two ways to config hdmi audio(I2S, S/PDIF), So we take
> I2S as hdmi audio operation interfaces, and then treat hdmi audio as an
> standard ALSA devices(only got platback function).

There is no need for dw-hdmi audio to be implemented as an ASoC
device - as I've already sent patches to Andy with my ALSA driver
which has been around for the last two years, and works well, and
doesn't require any additional DT description.

-- 
FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.
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