ARM: 6417/1: ux500: build configuration for DB5500 mbox and modem irq handler

This rounds of the DB5500 mailbox patches by adding the Kconfig
options to enable the modem IRQs and mailboxes.
Signed-off-by: NStefan Nilsson XK <stefan.xk.nilsson@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-ux500/Kconfig

@@ -39,4 +39,18 @@ config UX500_DEBUG_UART
 	  Choose the UART on which kernel low-level debug messages should be
 	  output.
 
+config U5500_MODEM_IRQ
+	bool "Modem IRQ support"
+	depends on MACH_U5500
+	default y
+	help
+	  Add support for handling IRQ:s from modem side
+
+config U5500_MBOX
+	bool "Mailbox support"
+	depends on MACH_U5500 && U5500_MODEM_IRQ
+	default y
+	help
+	  Add support for U5500 mailbox communication with modem side
+
 endif

arch/arm/mach-ux500/Makefile

@@ -11,3 +11,5 @@ obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)	+= hotplug.o
 obj-$(CONFIG_LOCAL_TIMERS)	+= localtimer.o
 obj-$(CONFIG_REGULATOR_AB8500)	+= board-mop500-regulators.o
+obj-$(CONFIG_U5500_MODEM_IRQ)	+= modem_irq.o
+obj-$(CONFIG_U5500_MBOX)	+= mbox.o