linux-kernel - Re: [alsa-devel] [PATCH] mfd: wm8994: use PLATFORM_DEVID_AUTO for regulator devs creation to avoid conflicts

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Message-ID: <20141230112821.GL11764@sirena.org.uk>
Date:	Tue, 30 Dec 2014 11:28:21 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Inha Song <ideal.song@...sung.com>
Cc:	lgirdwood@...il.com, lee.jones@...aro.org, sameo@...ux.intel.com,
	patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
	ckeepax@...nsource.wolfsonmicro.com, alsa-devel@...a-project.org
Subject: Re: [alsa-devel] [PATCH] mfd: wm8994: use PLATFORM_DEVID_AUTO for
 regulator devs creation to avoid conflicts

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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