OF: pinctrl: MIPS: lantiq: adds support for FALCON SoC

Implement support for pinctrl on lantiq/falcon socs. The FALCON has 5 banks
of up to 32 pins.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org

arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h

@@ -57,6 +57,10 @@ extern __iomem void *ltq_sys1_membase;
 #define ltq_sys1_w32_mask(clear, set, reg)   \
 	ltq_sys1_w32((ltq_sys1_r32(reg) & ~(clear)) | (set), reg)
 
+/* allow the gpio and pinctrl drivers to talk to eachother */
+extern int pinctrl_falcon_get_range_size(int id);
+extern void pinctrl_falcon_add_gpio_range(struct pinctrl_gpio_range *range);
+
 /*
  * to keep the irq code generic we need to define this to 0 as falcon
  * has no EIU/EBU

arch/mips/lantiq/Kconfig

@@ -20,6 +20,7 @@ config SOC_XWAY
 
 config SOC_FALCON
 	bool "FALCON"
+	select PINCTRL_FALCON
 
 endchoice
 

drivers/pinctrl/Kconfig

@@ -65,6 +65,11 @@ config PINCTRL_PXA3xx
 	bool
 	select PINMUX
 
+config PINCTRL_FALCON
+	bool
+	depends on SOC_FALCON
+	depends on PINCTRL_LANTIQ
+
 config PINCTRL_MMP2
 	bool "MMP2 pin controller driver"
 	depends on ARCH_MMP

drivers/pinctrl/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_IMX51)	+= pinctrl-imx51.o
 obj-$(CONFIG_PINCTRL_IMX53)	+= pinctrl-imx53.o
 obj-$(CONFIG_PINCTRL_IMX6Q)	+= pinctrl-imx6q.o
 obj-$(CONFIG_PINCTRL_PXA3xx)	+= pinctrl-pxa3xx.o
+obj-$(CONFIG_PINCTRL_FALCON)	+= pinctrl-falcon.o
 obj-$(CONFIG_PINCTRL_MMP2)	+= pinctrl-mmp2.o
 obj-$(CONFIG_PINCTRL_MXS)	+= pinctrl-mxs.o
 obj-$(CONFIG_PINCTRL_IMX23)	+= pinctrl-imx23.o