tree 68335b90c13258ce3b87c4efeb0eba992d83b281
parent 5cfc662c496a0e52301a9379f91755b1f8fbf368
author Simon Glass <sjg@chromium.org> 1420513526 -0700
committer Simon Glass <sjg@chromium.org> 1422576590 -0700

dm: fdt: Add a function to decode phandles with arguments

For GPIOs and other functions we want to look up a phandle and then decode
a list of arguments for that phandle. Each phandle can have a different
number of arguments, specified by a property in the target node. This is
the "#gpio-cells" property for GPIOs.

Add a function to provide this feature, taken modified from Linux 3.18.

Signed-off-by: Simon Glass <sjg@chromium.org>