linux-kernel - Re: [PATCH] regulator: twl-regulator

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Message-ID: <20101022153006.GB16521@opensource.wolfsonmicro.com>
Date:	Fri, 22 Oct 2010 08:30:07 -0700
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Juha Keski-Saari <ext-juha.1.keski-saari@...ia.com>,
	Rajendra Nayak <rnayak@...com>
Subject: Re: [PATCH] regulator: twl-regulator - fix twlreg_set_mode

On Fri, Oct 22, 2010 at 04:38:22PM +0800, Axel Lin wrote:
> The Singular Message is 16 bits:
>         DEV_GRP[15:13] MT[12]  RES_ID[11:4]  RES_STATE[3:0]
> 
> Current implementation return immedially after sucessfuly write MSB part.
> To properly set mode, we need to write the complete message ( MSB and LSB ).
> 
> In twl.h, now we have defines for PM Master module register offsets,
> use it instead of hard coded 0x15/0x16.
> 
> Use "message & 0xff" to ensure we send correct value for LSB.
> 
> Signed-off-by: Axel Lin <axel.lin@...il.com>

Acked-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>

> I don't have this hardware handy, I appreciate if someone who has the
> hardware can test this patch.

I beleive Liam has appropriate hardware.
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