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From: Simon Glass <sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
To: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Subject: Pinmux with device tree
Date: Wed, 18 May 2011 09:34:45 -0700	[thread overview]
Message-ID: <BANLkTin5wBtR4zkgsQ6dw1jQP8yQGCDS2Q@mail.gmail.com> (raw)

Hi,

I see a new pinmux system in the LKML. Has anyone looked at how to
represent pinmux settings in the device tree?

On a related topic, the examples that are used for GPIOs assume a
flags word which describes things like pull-ups, direction, etc. This
seems pretty cumbersome and gets worse with pinmuxes. People editing
the device trees want to see symbolic information rather than a coded
number, a bit like a #define. I can see this can be done with strings
but this is inefficient in time and space, and is error-prone.  Is
there support for this in device trees that I have missed?

Regards,
Simon

             reply	other threads:[~2011-05-18 16:34 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-18 16:34 Simon Glass [this message]
     [not found] ` <BANLkTin5wBtR4zkgsQ6dw1jQP8yQGCDS2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-05-18 19:33   ` Pinmux with device tree Mitch Bradley
     [not found]     ` <4DD41F02.4050108-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-05-19 11:30       ` Haojian Zhuang
     [not found]         ` <BANLkTim94SKgWvUF6_PWb9O5YsuNk120Bw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-05-19 17:10           ` Grant Likely
     [not found]             ` <20110519171029.GH3085-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2011-05-19 17:24               ` Stephen Warren
     [not found]                 ` <74CDBE0F657A3D45AFBB94109FB122FF0498A47BFF-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-05-19 17:42                   ` Grant Likely
2011-05-19 19:59               ` Mitch Bradley
     [not found]                 ` <4DD576BD.7090307-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-05-19 20:36                   ` Nicolas Pitre
     [not found]                     ` <alpine.LFD.2.00.1105191625050.14430-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-05-19 20:54                       ` Mitch Bradley
     [not found]                         ` <4DD5839C.2020809-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-05-20  2:23                           ` Nicolas Pitre
     [not found]                             ` <alpine.LFD.2.00.1105192217350.14430-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-05-20  2:31                               ` Mitch Bradley
2011-05-26  3:43               ` Simon Glass

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