linux-kernel - Re: [PATCH 4/4] mfd: arizona: Mark additional registers as volatile

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Message-ID: <20140813092209.GE15833@opensource.wolfsonmicro.com>
Date:	Wed, 13 Aug 2014 10:22:09 +0100
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	lee.jones@...aro.org
Cc:	patches@...nsource.wolfsonmicro.com, sameo@...ux.intel.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] mfd: arizona: Mark additional registers as volatile

On Tue, Aug 12, 2014 at 02:51:23PM +0100, Charles Keepax wrote:
> Mark some additional registers as volatile. The write sequencer control
> registers should not be cached, as we don't ever want their value
> synchronised as this might cause a write sequence to be accidentally
> initiated.
> 
> Additionally, the DAC_COMP registers require special preconditions to
> write so there values wouldn't be updated accurately during a register
> sync.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---

Apologies please ignore this patch, I forgot I was carrying a
patch from Mark that it depends on that doesn't appear to be in
your MFD tree. I will resend Mark's patch first.

Thanks,
Charles
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