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Date:	Tue, 30 Dec 2014 20:46:24 +0900
From:	Inha Song <ideal.song@...sung.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	alsa-devel@...a-project.org, sameo@...ux.intel.com,
	patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
	lgirdwood@...il.com, ckeepax@...nsource.wolfsonmicro.com,
	lee.jones@...aro.org
Subject: Re: [alsa-devel] [PATCH] mfd: wm8994: use PLATFORM_DEVID_AUTO for
 regulator devs creation to avoid conflicts

Hi Mark,
Thanks for your reply.

Sure, Understand. I missed that part.

I will just fix id base to 0 from -1.
If not, duplicate filename error was reported like this.
- sysfs: cannot create duplicate filename '/devices/.../wm8994-ldo'

Best Regards,
Inha Song.

On Tue, 30 Dec 2014 11:28:21 +0000
Mark Brown <broonie@...nel.org> wrote:

> On Tue, Dec 30, 2014 at 02:45:20PM +0900, Inha Song wrote:
> > After commit: 6e3f62f0793e ("mfd: core: Fix platform-device id generation")
> > We must set the id base when register a duplicate name of mfd_cell.
> > but, if we use PLATFORM_DEVID_AUTO flag, cell ids are automatically
> > allocated and managed without cell id setting.
> 
> The driver relies on getting those specific IDs in order to work out
> which LDO it's working with, automatically generated numbers may be the
> same now but can you guarantee that in future?
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