linux-kernel - Re: [PATCH v2 2/6] MFD: twl6040: Cache the vibra control registers

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Date:	Mon, 10 Oct 2011 21:04:08 +0200
From:	Samuel Ortiz <samuel.ortiz@...el.com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	Dmitry Torokhov <dtor@...l.ru>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org,
	Misael Lopez Cruz <misael.lopez@...com>,
	linux-input@...r.kernel.org
Subject: Re: [PATCH v2 2/6] MFD: twl6040: Cache the vibra control registers

Hi Peter,

On Fri, Sep 23, 2011 at 09:49:40AM +0300, Peter Ujfalusi wrote:
> The vibra control register will be used from the ASoC codec driver as well.
> In order to avoid latency issues caused by I2C read access, cache the two
> control register within the core driver, so we do not need to reach out
> to the chip to read it back.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
Acked-by: Samuel Ortiz <sameo@...ux.intel.com>

Cheers,
Samuel.

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