i2c-mux-gpio: Update documentation
authorJean Delvare <khali@linux-fr.org>
Fri, 5 Oct 2012 20:23:54 +0000 (22:23 +0200)
committerJean Delvare <khali@endymion.delvare>
Fri, 5 Oct 2012 20:23:54 +0000 (22:23 +0200)
commit600a711cfeb10769e386c4ce7d39e9f0cc4b471a
treea922d6b426495e70e93d6c144dc15fad22c9d2ae
parente7ee51405835cac72e7b6e0ff26dba608cf186cc
i2c-mux-gpio: Update documentation

* Document the possibility to pass relative GPIO pin numbers.
* Document what platform device IDs to use, so that they do not
  collide.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Peter Korsgaard <peter.korsgaard@barco.com>
Documentation/i2c/muxes/i2c-mux-gpio