From: Olof Johansson <olof@lixom.net>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: Tony Lindgren <tony@atomide.com>,
Peter Barada <peterb@logicpd.com>,
Mika Westerberg <ext-mika.1.westerberg@nokia.com>,
linux-omap@vger.kernel.org
Subject: Re: Preventing OMAP3 serial driver to take control of all UARTs
Date: Wed, 2 Dec 2009 09:53:19 -0600 [thread overview]
Message-ID: <20091202155319.GA3628@lixom.net> (raw)
In-Reply-To: <fa686aa40912020707p70eb693dp6fcd03facabb5892@mail.gmail.com>
On Wed, Dec 02, 2009 at 08:07:21AM -0700, Grant Likely wrote:
> Oh, and speaking of GPIOs, there is a binding for describing GPIO pin
> connections in the device tree:
> Documentation/powerpc/dts-bindings/gpio/gpio.txt
That binding is more about documenting a bank of GPIO pins, while
chips like OMAP will need something a bit more flexible.
Given the flexibility and complexity of configuring the pins on
mobile-oriented SoCs where each function can come out a variety of
different pins, and many pins can 3 or 4 functions associated with them
(selected by software config), it will definitely bring a new level of
complexity to the device tree descriptions.
I'm definitely not saying that it is impossible, but it might take a
little work to hash out a binding that everyone will be happy with.
-Olof
next prev parent reply other threads:[~2009-12-02 15:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-30 8:46 Preventing OMAP3 serial driver to take control of all UARTs Mika Westerberg
2009-11-30 16:36 ` Peter Barada
2009-11-30 17:01 ` Grant Likely
2009-11-30 19:40 ` Tony Lindgren
2009-11-30 20:31 ` Peter Barada
2009-11-30 21:09 ` Tony Lindgren
2009-12-01 11:02 ` Mika Westerberg
2009-12-09 22:43 ` Kevin Hilman
2009-12-10 10:33 ` [PATCH] OMAP3: serial - allow platforms specify which UARTs to initialize Mika Westerberg
2009-12-11 22:27 ` [APPLIED] [PATCH] OMAP3: serial - allow platforms specify which UARTs to Tony Lindgren
2009-11-30 20:52 ` Preventing OMAP3 serial driver to take control of all UARTs Tony Lindgren
2009-12-02 15:07 ` Grant Likely
2009-12-02 15:53 ` Olof Johansson [this message]
2009-12-02 16:04 ` Grant Likely
2009-12-02 16:16 ` Olof Johansson
2009-12-02 17:24 ` Grant Likely
2009-12-03 0:59 ` Tony Lindgren
2009-12-03 1:00 ` Tony Lindgren
2009-12-03 6:56 ` Mika Westerberg
2009-12-03 8:46 ` Artem Bityutskiy
2009-12-03 19:52 ` Tony Lindgren
2009-12-07 10:44 ` Mika Westerberg
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