Add support to the iProc GPIO driver for the NSP and Stingray iProc based SoCs.
The integration in NSP has drive strength pinconf feature disabled and the
integration in Stingray has all pinconf related features disabled and handled
by a different IP block

GITHUB repo: https://github.com/Broadcom/cygnus-linux.git
branch: iproc-gpio-v4

Changes from v3:
 - Changed SoC specific compatible string name to have format of <soc>-<block>,
i.e., brcm,iproc-nsp-gpio and brcm,iproc-stingray-gpio, per suggestion from Rob

Changes from v2:
 - Rebased to v4.7-rc1
 - Changed to use SoC specific compatible string to handle SoC specific
changes in both NSP and Stingray

Changes from v1:
 - Changed to use compatible strings "brcm,iproc-gpio-v2" and
"brcm,iproc-gpio-v3" to deal with differences among various iProc based SoCs
 - Removed DT header "include/dt-bindings/pinctrl/brcm,iproc-gpio.h"

Ray Jui (2):
  dt-bindings: Update iProc GPIO bindings
  pinctrl: iproc: Add NSP and Stingray GPIO support

 .../bindings/pinctrl/brcm,iproc-gpio.txt           |  18 +++-
 drivers/pinctrl/bcm/pinctrl-iproc-gpio.c           | 118 +++++++++++++++++++--
 2 files changed, 127 insertions(+), 9 deletions(-)

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2.1.4