linux-kernel - Re: [PATCH] regulator: max77693: Skip register regulator if no platform initialization data

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Message-ID: <20130629122648.GO27646@sirena.org.uk>
Date:	Sat, 29 Jun 2013 13:26:48 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Axel Lin <axel.lin@...ics.com>
Cc:	Jonghwa Lee <jonghwa3.lee@...sung.com>,
	Myungjoo Ham <myungjoo.ham@...sung.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regulator: max77693: Skip register regulator if no
 platform initialization data

On Sat, Jun 29, 2013 at 12:04:19PM +0800, Axel Lin wrote:
> The code in max77693_pmic_dt_parse_rdata() does skip setting rdata if
> !rmatch[i].init_data. So we may have some empty entries in rdata[].
> We need to skip register regulator if no platform initialization data,
> otherwise we may resiter regulator with invalid settings ( the empty entries
> of rdata[]).

It should be legal to have no init data, this should make the regulator
available read only (allowing the current settings to be read back but
nothing else).

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