r302523:
  Add clk_get_by_ofw_node_index, which is like clk_get_by_ofw_index but
  operates on a specific OF node instead of the pass in device's OF node.
r302528:
  EXTRES: Add OF node as argument to all <foo>_get_by_ofw_<bar>() functions.
  In some cases, the driver must handle given properties located in specific
  OF subnode. Instead of creating duplicate set of function, add 'node' as
  argument to existing functions, defaulting it to device OF node.