From: peter.chen@freescale.com (Peter Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] pinctrl: imx: Add exception hook for select input
Date: Tue, 30 Jul 2013 16:00:29 +0800 [thread overview]
Message-ID: <20130730080028.GA8540@nchen-desktop> (raw)
In-Reply-To: <20130730075018.GD12382@S2101-09.ap.freescale.net>
On Tue, Jul 30, 2013 at 03:50:21PM +0800, Shawn Guo wrote:
> On Tue, Jul 30, 2013 at 10:54:16AM +0800, Peter Chen wrote:
> > At some i.mx platforms the select input pin configuration may
> > not be at common select input register region due to IC found
> > the pin select pin configuration missing very late (Eg, ECO stage),
> > so this pin's select input register is at other register space at
> > pinctrl module. One typical example is USB OTG ID pin at i.mx6q is
> > at IOMUXC_IOMUXC_GPR1.
>
> Do you know any other case except this USB OTG ID pin on imx6q? If this
> is the only case, I'm wondering if we could work it around in machine
> code mach-imx6q.c to avoid the churn of pinctrl driver?
>
I searched the RM, this is the only one. If you don't think we need
to consider if it will occur in the future, I am OK to move it at machine
code, but every mx6q board need it if it does not use default select input
value.
--
Best Regards,
Peter Chen
next prev parent reply other threads:[~2013-07-30 8:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-30 2:54 [PATCH 1/2] pinctrl: imx: Add exception hook for select input Peter Chen
2013-07-30 2:54 ` [PATCH 2/2] imx: pinctrl: change XXX_USB_OTG_ID configuration Peter Chen
2013-07-30 7:50 ` [PATCH 1/2] pinctrl: imx: Add exception hook for select input Shawn Guo
2013-07-30 8:00 ` Peter Chen [this message]
2013-07-30 8:38 ` Shawn Guo
2013-07-31 5:20 ` Shawn Guo
2013-08-07 18:29 ` Linus Walleij
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