From: Felipe Balbi <balbi@ti.com>
To: venki kaps <venkiece2005@gmail.com>
Cc: "Balbi, Felipe" <balbi@ti.com>, Ming Lei <tom.leiming@gmail.com>,
"greg@kroah.com" <greg@kroah.com>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
David Brownell <dbrownell@users.sourceforge.net>,
Felipe Balbi <me@felipebalbi.com>,
"Gadiyar, Anand" <gadiyar@ti.com>
Subject: Re: [PATCH] USB: otg: twl4030: fix phy initialization(v1)
Date: Fri, 10 Sep 2010 15:31:19 +0300 [thread overview]
Message-ID: <20100910123119.GB31230@legolas.emea.dhcp.ti.com> (raw)
In-Reply-To: <AANLkTin87OTkBrqvStrk61jj8=z75ARBszituZdOQqWE@mail.gmail.com>
Hi,
On Thu, Sep 09, 2010 at 12:28:27PM -0500, venki kaps wrote:
>one thing i have not understood, why it requires to power down when
>the device is booted without
>a USB cable?
why would the phy be powered up for no use ?
>After booting, just attach/detach the usb cable, then i have not seen
>any issue with power numbers in off mode, RETENTION and active states.
that's because if you boot without cable the phy is left alive,
consuming power for nothing.
--
balbi
next prev parent reply other threads:[~2010-09-10 12:32 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-06 18:10 venki kaps
2010-09-06 20:22 ` Felipe Balbi
2010-09-07 2:49 ` venki kaps
2010-09-07 12:46 ` Felipe Balbi
2010-09-07 13:18 ` venki kaps
2010-09-07 13:24 ` Ming Lei
2010-09-07 13:50 ` venki kaps
2010-09-07 15:40 ` Ming Lei
2010-09-07 15:48 ` venki kaps
2010-09-07 18:15 ` venki kaps
2010-09-07 18:22 ` venki kaps
2010-09-08 15:55 ` venki kaps
2010-09-09 1:49 ` Ming Lei
2010-09-09 6:01 ` Felipe Balbi
2010-09-09 17:28 ` venki kaps
2010-09-10 12:31 ` Felipe Balbi [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-09-06 15:27 tom.leiming
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