pinctrl: mvebu: kirkwood pinctrl driver

This patch adds a SoC specific pinctrl driver for Marvell Kirkwood SoCs
plus DT binding documentation. This driver will use the mvebu pinctrl
driver core.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

drivers/pinctrl/Kconfig

@@ -155,6 +155,10 @@ config PINCTRL_DOVE
 	bool
 	select PINCTRL_MVEBU
 
+config PINCTRL_KIRKWOOD
+	bool
+	select PINCTRL_MVEBU
+
 source "drivers/pinctrl/spear/Kconfig"
 
 endmenu

drivers/pinctrl/Makefile

@@ -31,5 +31,6 @@ obj-$(CONFIG_PINCTRL_U300)	+= pinctrl-u300.o
 obj-$(CONFIG_PINCTRL_COH901)	+= pinctrl-coh901.o
 obj-$(CONFIG_PINCTRL_MVEBU)	+= pinctrl-mvebu.o
 obj-$(CONFIG_PINCTRL_DOVE)	+= pinctrl-dove.o
+obj-$(CONFIG_PINCTRL_KIRKWOOD)	+= pinctrl-kirkwood.o
 
 obj-$(CONFIG_PLAT_SPEAR)	+= spear/