tree ce04092733a45fe6ab6f898abf9ca97d4ce47b0d
parent a67fa2657a12e9d2d982988f8b693ab3bd135176
author Caesar Wang <wxt@rock-chips.com> 1473446552 +0800
committer Caesar Wang <wxt@rock-chips.com> 1473451599 +0800

rockchip/rk3399: improve gpio driver and support get pull mode function

We may need gpio pull mode later, so add this function.
Besides fix a set pull mode bug, and save gpio clock gate,
when operate the gpio, we will enable gpio clock, when
finish gpio operate, restore gpio clock gate status.

Change-Id: Ia1d602804f571a17f5ddc499908663b968b02974