linux-kernel - Re: [PATCH 1/2] ASoC: rockchip: Add machine driver for max98090 codec

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Message-ID: <55A7CCDE.9010701@linux.intel.com>
Date:	Thu, 16 Jul 2015 23:25:18 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Paul Bolle <pebolle@...cali.nl>,
	zhengxing <zhengxing@...k-chips.com>
CC:	dgreid@...omium.org, dianders@...omium.org, heiko@...ech.de,
	sonnyrao@...omium.org, linux-rockchip@...ts.infradead.org,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	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 1/2] ASoC: rockchip: Add machine driver for max98090 codec

On 2015/7/16 22:19, Paul Bolle wrote:
> Hi,
> 
> On do, 2015-07-16 at 19:59 +0800, zhengxing wrote:
>> I mean that the use of MODALIAS() in this patch, and I refered to
>> tegra_max98090.c(have been upstreamed) that used it like this also. So
>> I didn't care the using.
> 
> And I think the same problem with MODULE_ALIAS() can be found in that
> driver. Ie, where does the platform device that has a "tegra-snd
> -max98090" .name hide? (See the reply I just sent to mark for more
> details.)
May be that is hidden in some device tree files.
MODULE_ALIAS() is used by a driver to announce that it supports
such types of devices. And bus enumerator will create those
devices by probing hardware or parsing some configuration files.
Thanks!
Gerry
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