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From: linus.walleij@linaro.org (Linus Walleij)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/7] gpio: mxc: Support initialization as subdevice
Date: Wed, 7 Aug 2013 21:03:36 +0200	[thread overview]
Message-ID: <CACRpkda+oLASgNkCWD5n9f6a2ECvvb95wJoEvqXF3ebeQu9Spw@mail.gmail.com> (raw)
In-Reply-To: <1375439907-10462-2-git-send-email-mpa@pengutronix.de>

On Fri, Aug 2, 2013 at 12:38 PM, Markus Pargmann <mpa@pengutronix.de> wrote:

> On imx27 and imx21, there is no clear seperation between iomux control
> registers and GPIO data registers. For easier pingroup definitions, the
> gpio drivers will be initialized as subnodes of the iomux controller. It
> is necessary to share the registers between iomux and gpio.
>
> This patch adds support to pass a register memory region via platform
> data.
>
> Signed-off-by: Markus Pargmann <mpa@pengutronix.de>

I think you have misunderstood that it is perfectly legal for
several drivers to remap the same memory range. I think
you should just drop this quirk and happily remap the memory
in both drivers.

Yours,
Linus Walleij

  reply	other threads:[~2013-08-07 19:03 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-02 10:38 [PATCH 0/7] ARM: imx27 pinctrl Markus Pargmann
2013-08-02 10:38 ` [PATCH 1/7] gpio: mxc: Support initialization as subdevice Markus Pargmann
2013-08-07 19:03   ` Linus Walleij [this message]
2013-08-09 17:56     ` Markus Pargmann
2013-08-02 10:38 ` [PATCH 2/7] pinctrl: imx header, conditional probe functions Markus Pargmann
2013-08-05  5:43   ` Shawn Guo
2013-08-09 13:31     ` Markus Pargmann
2013-08-02 10:38 ` [PATCH 3/7] pinctrl: imx1 core driver Markus Pargmann
2013-08-02 10:51   ` Alexander Shiyan
2013-08-02 10:54     ` Markus Pargmann
2013-08-05  9:29   ` Sascha Hauer
2013-08-09 18:16     ` Markus Pargmann
2013-08-07 19:25   ` Linus Walleij
2013-08-09 19:33     ` Markus Pargmann
2013-08-02 10:38 ` [PATCH 4/7] pinctrl: imx27: imx27 pincontrol driver Markus Pargmann
2013-08-05  6:12   ` Shawn Guo
2013-08-09 13:46     ` Markus Pargmann
2013-08-02 10:38 ` [PATCH 5/7] ARM: dts: imx27 pin functions Markus Pargmann
2013-08-05  6:14   ` Shawn Guo
2013-08-02 10:38 ` [PATCH 6/7] ARM: dts: imx27 pinctrl Markus Pargmann
2013-08-05  6:18   ` Shawn Guo
2013-08-09 13:54     ` Markus Pargmann
2013-08-02 10:38 ` [PATCH 7/7] ARM: imx27: enable pinctrl Markus Pargmann

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