From: Linus Walleij <linus.walleij@linaro.org>
To: Tony Lindgren <tony@atomide.com>
Cc: Stephen Warren <swarren@nvidia.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-tegra@vger.kernel.org
Subject: Re: [RFC 1/3] pinctrl: add a driver for NVIDIA Tegra
Date: Sat, 10 Dec 2011 00:49:11 +0100 [thread overview]
Message-ID: <CACRpkdaco=967cKHUcj9VNKc_HyT7Mw30Z9HVdfgsUsHbps8bQ@mail.gmail.com> (raw)
In-Reply-To: <20111209170722.GO31337@atomide.com>
On Fri, Dec 9, 2011 at 6:07 PM, Tony Lindgren <tony@atomide.com> wrote:
> - We currently have hard time supporting pin groups with pins
> coming from multiple pinmux driver instances
Pin groups are per definiton per-controller inctance. That is a
given side effect of not having a global pin space.
But you can create two groups of the same name on two
pin controllers so that e.g. pinctrl.0 and pinctrl.1 have
a group named "foo", then map both to a certain device
in the board pinmux map.
You will have to request them individually however, like
with two hogs or two pinmux_get() calls specifying the
name of each map, else you will just get the first one.
Not that I've tried it, but that's how it's supposed to work...
Yours,
Linus Walleij
next prev parent reply other threads:[~2011-12-09 23:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-08 22:13 [RFC 0/3] pinctrl: add a driver for NVIDIA Tegra Stephen Warren
2011-12-08 22:13 ` [RFC 1/3] " Stephen Warren
[not found] ` <1323382390-14892-2-git-send-email-swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2011-12-09 14:01 ` Linus Walleij
[not found] ` <CACRpkdYDn0V7SeQuFiFDMxGkybvg6PGf7jxid8ECGB7Azkj3zw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-09 17:07 ` Tony Lindgren
2011-12-09 23:49 ` Linus Walleij [this message]
[not found] ` <CACRpkdaco=967cKHUcj9VNKc_HyT7Mw30Z9HVdfgsUsHbps8bQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-11 19:36 ` Tony Lindgren
2011-12-09 17:28 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17518604D7-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-12-09 18:00 ` Tony Lindgren
2011-12-09 23:55 ` Linus Walleij
[not found] ` <CACRpkdahqb0qMVcKF9NBT5pwRgK4FOob5ABtb7ids9Bhh5XbZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-12 18:06 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF17518607C1-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-12-13 0:27 ` Linus Walleij
[not found] ` <1323382390-14892-1-git-send-email-swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2011-12-08 22:13 ` [RFC 2/3] arm/tegra: Select PINMUX Kconfig variables Stephen Warren
2011-12-08 22:13 ` [RFC 3/3] New pinmux testing hacks Stephen Warren
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