linux-kernel - Re: [patch 2.6.29-rc3-git 2/2] USB: disable twl4030 USB regulators when cable unplugged

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Date:	Thu, 26 Feb 2009 22:16:36 +0000
From:	Liam Girdwood <lrg@...mlogic.co.uk>
To:	David Brownell <david-b@...bell.net>
Cc:	Mark Brown <broonie@...ena.org.uk>,
	lkml <linux-kernel@...r.kernel.org>, linux-usb@...r.kernel.org,
	OMAP <linux-omap@...r.kernel.org>,
	Kalle Jokiniemi <kalle.jokiniemi@...ia.com>
Subject: Re: [patch 2.6.29-rc3-git 2/2] USB: disable twl4030 USB regulators
 when cable unplugged

On Sun, 2009-02-08 at 10:52 -0800, David Brownell wrote:
> From: Kalle Jokiniemi <kalle.jokiniemi@...ia.com>
> 
> This patch disables LDO regulators VUSB1V5, VUSB1V8, and VUSB3V1
> when the USB cable is unplugged, to eliminate that source of power
> waste.  (Enabled LDOs consume power at all times.)
> 
> Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@...ia.com>
> Signed-off-by: David Brownell <dbrownell@...rs.sourceforge.net>
> ---
> Depends on the twl4030 regulator driver, so I'm suggesting this
> be merged (with that driver) through the regulator patch queue
> to simplify things.
> 
>  drivers/usb/otg/twl4030-usb.c |   30 ++++++++++++++++++++++++------
>  1 file changed, 24 insertions(+), 6 deletions(-)

Applied.

Thanks

Liam

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