linux-kernel - Re: [PATCH] usb: phy: samsung-usb2: Toggle HSIC GPIO from device tree

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Message-ID: <CAOMZO5AfXnxcCjiXY6f0xE=yr-=7nkTY3KJO=xqx1KD3qAvoRQ@mail.gmail.com>
Date:	Wed, 10 Jul 2013 21:01:49 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Julius Werner <jwerner@...omium.org>
Cc:	balbi@...com, LKML <linux-kernel@...r.kernel.org>,
	linux-usb@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-samsung-soc@...r.kernel.org,
	Vivek Gautam <gautam.vivek@...sung.com>,
	Praveen Paneri <p.paneri@...sung.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Tushar Behera <tushar.behera@...aro.org>,
	Doug Anderson <dianders@...omium.org>,
	Olof Johansson <olofj@...omium.org>,
	Vincent Palatin <vpalatin@...omium.org>,
	Philipp Zabel <p.zabel@...gutronix.de>
Subject: Re: [PATCH] usb: phy: samsung-usb2: Toggle HSIC GPIO from device tree

Hi Julius,

On Wed, Jul 10, 2013 at 2:42 PM, Julius Werner <jwerner@...omium.org> wrote:
> Hi Felipe,
>
> This is intended to pull down a reset signal line, not to switch power
> to the device. I could implement that with the regulator framework
> too, but I think that would just be confusing and harder to understand
> without providing any benefit. It's really just a plain old GPIO.

It seems that the reset gpio driver from Phillip Zabel would help in this case:
http://permalink.gmane.org/gmane.linux.drivers.devicetree/36830
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