linux-kernel - Re: [alsa-devel] [PATCH 1/4] ASoC: rockchip: add rockchip machine driver

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Date:	Thu, 21 May 2015 12:10:28 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Dylan Reid <dgreid@...omium.org>
Cc:	Lars-Peter Clausen <lars@...afoo.de>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Heiko Stübner <heiko@...ech.de>,
	zhengxing <zhengxing@...k-chips.com>,
	Takashi Iwai <tiwai@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Douglas Anderson <dianders@...omium.org>,
	Xing Zheng <acgzxing@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-rockchip@...ts.infradead.org,
	Sonny Rao <sonnyrao@...omium.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [alsa-devel] [PATCH 1/4] ASoC: rockchip: add rockchip machine
 driver

On Tue, May 19, 2015 at 09:37:58AM -0700, Dylan Reid wrote:

> Can the jacks can each be an aux_dev?  The jack driver would create
> the jack at probe time and register it with the card in aux_dev->init.
> cht_bsw_max98090_ti.c is already doing something similar, although all
> contained in the machine driver.

Yes, that's just a CODEC driver registered without any DAIs connected so
it'd just be another CODEC driver.

> Then simple-card can have an optional property to specify aux devs.  A
> GPIO jack device could handle simple switch-based jack detection.

That's useful anyway for external headphone/speaker drivers.

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