tree be23f5d9657d558d690adc84b16bdd6d91668f47
parent 09d71ff19404b3957fab6de942fb8026ccfd8524
author Grant Likely <grant.likely@secretlab.ca> 1337284480 -0600
committer Grant Likely <grant.likely@secretlab.ca> 1337381316 -0600

gpio: Adjust of_xlate API to support multiple GPIO chips

This patch changes the of_xlate API to make it possible for multiple
gpio_chips to refer to the same device tree node.  This is useful for
banked GPIO controllers that use multiple gpio_chips for a single
device.  With this change the core code will try calling of_xlate on
each gpio_chip that references the device_node and will return the
gpio number for the first one to return 'true'.

Tested-by: Roland Stigge <stigge@antcom.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>