linux-kernel - Re: [PATCH] extcon: palmas: Dont set USB state if ID pin is grounded

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Message-ID: <522ED8E0.1030803@ti.com>
Date:	Tue, 10 Sep 2013 14:01:28 +0530
From:	George Cherian <george.cherian@...com>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	<linux-kernel@...r.kernel.org>, <myungjoo.ham@...sung.com>,
	<cw00.choi@...sung.com>, <ldewangan@...dia.com>
Subject: Re: [PATCH] extcon: palmas: Dont set USB state if ID pin is grounded

On 9/10/2013 1:54 PM, Kishon Vijay Abraham I wrote:
> Hi,
>
> On Tuesday 10 September 2013 01:19 PM, George Cherian wrote:
>> In OMAP5 when USB-HOST is set true, the VBUS regulator  is turned ON.
>> This causes a VBUS interrupt, ignore the same if we are already in
>> USB-HOST.
> You'll get VBUS interrupt when detaching USB-HOST cable also no? (because you
> do a regulator disable to SMPS10).
Yes since we are ignoring the previous interrupt(for attach), the detach 
is accounted as a spurious one.
If we dont igonre the attach then the USB is set to true, which is wrong.
>
> Thanks
> Kishon


-- 
-George

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