Add support for broadcom iproc gpio driver.
Changes from v4: -Address review comments from Simon Glass, Check for function return value.
Changes from v3: -Address review comments from Simon Glass, Rearrange header file, Add struct comment taking about members, Use clrsetbits_le32(), Add new line before return etc.
Changes from v2: -remove ununsed variable "node" in iproc_get_gpio_pctrl_mapping() func to fix compilation warning.
Changes from v1: -Address review comments from Simon Glass, Use dev_read_...() instead of fdtdec_...().
Rayagonda Kokatanur (2): drivers: gpio: add broadcom iproc gpio driver support gpio: do not include <asm/arch/gpio.h> on TARGET_BCMNS3
arch/arm/include/asm/gpio.h | 2 +- drivers/gpio/Kconfig | 11 ++ drivers/gpio/Makefile | 1 + drivers/gpio/iproc_gpio.c | 275 ++++++++++++++++++++++++++++++++++++ 4 files changed, 288 insertions(+), 1 deletion(-) create mode 100644 drivers/gpio/iproc_gpio.c