From: Doug Anderson <dianders@chromium.org>
Date: Fri, 1 Mar 2013 16:57:31 +0000 (-0800)
Subject: i2c: core: Pick i2c bus number from dt alias if present
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~62^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee5c27440cc24d62ec463cce4c000bb32c5692c7;p=pandora-kernel.git

i2c: core: Pick i2c bus number from dt alias if present

This allows you to get the equivalent functionality of
i2c_add_numbered_adapter() with all data in the device tree and no
special case code in your driver.  This is a common device tree
technique.

For quick reference, the FDT syntax for using an alias to provide an
ID looks like:
  aliases {
    i2c0 = &i2c_0;
    i2c1 = &i2c_1;
  };

Signed-off-by: Doug Anderson <dianders@chromium.org>
[wsa: removed one check from static function. We know our callers]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

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