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

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Date:	Wed, 13 May 2015 17:42:51 +0100
From:	Mark Brown <broonie@...nel.org>
To:	zhengxing <zhengxing@...k-chips.com>
Cc:	Xing Zheng <acgzxing@...il.com>, dgreid@...omium.org,
	dianders@...omium.org, heiko@...ech.de, sonnyrao@...omium.org,
	linux-rockchip@...ts.infradead.org,
	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/4] ASoC: rockchip: add rockchip machine driver

On Wed, May 13, 2015 at 09:23:01PM +0800, zhengxing wrote:
> On 2015年05月13日 03:22, Mark Brown wrote:

> >Is it not possible to extend simple card to handle your use cases?
> >Given the very generic naming and the fact that things like jack
> >detection and so on should depend on the CODEC and board usually rather
> >than on the SoC it doesn't sound like this is Rockchip specific.

> >This also looks like you're reimplementing some device model enumeration
> >stuff which probably shouldn't be happening but let's understand the
> >problem you're trying to solve here before going too far into the code.

> Because we are trying to bring rt5650 in the project, so we intend to
> describe supported codecs with DTS via only a rockchip machine driver file,
> others remain pre-implement(like max98090 / rt5645 that vendor machine
> driver).

I don't undertand what you're saying here, sorry - why is this not just
a case of writing multiple machine drivers?

> I communicated with Dylan, and he told me that the jack detection is an
> issue in the simple-card, and suggested we are better to send them at
> present.

But what are these issues?

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