pinctrl: add a driver for the CSR SiRFprimaII pinmux

This creates a pin controller driver for the SiRFprinaII
pin mux portions.
Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
[Fixup for changed function names and semantics in the v10 patch]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>

drivers/pinctrl/Kconfig

@@ -26,6 +26,13 @@ config DEBUG_PINCTRL
 	help
 	  Say Y here to add some extra checks and diagnostics to PINCTRL calls.
 
+config PINMUX_SIRF
+	bool "CSR SiRFprimaII pinmux driver"
+	depends on ARCH_PRIMA2
+	select PINMUX
+	help
+	  Say Y here to enable the SiRFprimaII pinmux driver
+
 config PINMUX_U300
 	bool "U300 pinmux driver"
 	depends on ARCH_U300

drivers/pinctrl/Makefile

@@ -4,4 +4,5 @@ ccflags-$(CONFIG_DEBUG_PINMUX)	+= -DDEBUG
 
 obj-$(CONFIG_PINCTRL)		+= core.o
 obj-$(CONFIG_PINMUX)		+= pinmux.o
+obj-$(CONFIG_PINMUX_SIRF)	+= pinmux-sirf.o
 obj-$(CONFIG_PINMUX_U300)	+= pinmux-u300.o