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Date:	Mon, 10 Mar 2014 17:29:47 +0000
From:	Mark Brown <>
To:	Lars-Peter Clausen <>
Cc:	Charles Keepax <>,
	Lee Jones <>,,
	Samuel Ortiz <>,,
Subject: Re: [PATCH] mfd: wm5102: Mark register 0x19 readable

On Mon, Mar 10, 2014 at 06:17:22PM +0100, Lars-Peter Clausen wrote:
> On 03/10/2014 06:05 PM, Charles Keepax wrote:

> >WRITE_SEQUENCER_CTRL_3, seems we should add that in since it is
> >required for that 5102 boot stuff. Slightly confused as to how
> >that ever worked without the register being readable, but guess
> >it has been a while since I have fired up 5102 on mainline.

> Presumably this change triggered it:


Indeed.  Now that I think about it there's another bug lying underneath
too - the register isn't marked as volatile so it'll only actually be
being read on first read.  For some reason that check is only done on
probe so it's got no impact but it seems it's asking for future

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