irqchip: move mmp irq driver

Move irq-mmp driver from mach-mmp directory into irqchip directory.
It's used to support multiple platform.

Signed-off-by: Haojian Zhuang <[e-mail]>

arch/arm/mach-mmp/Makefile

···
 # Makefile for Marvell's PXA168 processors line
 #
 
-obj-y				+= common.o devices.o time.o irq.o
+obj-y				+= common.o devices.o time.o
 
 # SoC support
 obj-$(CONFIG_CPU_PXA168)	+= pxa168.o

arch/arm/mach-mmp/common.h

···
 
 extern void timer_init(int irq);
 
-extern void __init icu_init_irq(void);
 extern void __init mmp_map_io(void);
 extern void mmp_restart(enum reboot_mode, const char *);
 extern void __init pxa168_clk_init(void);

arch/arm/mach-mmp/include/mach/pxa168.h

···
 #include <linux/reboot.h>
 
 extern void pxa168_timer_init(void);
+extern void __init icu_init_irq(void);
 extern void __init pxa168_init_irq(void);
 extern void pxa168_restart(enum reboot_mode, const char *);
 extern void pxa168_clear_keypad_wakeup(void);

arch/arm/mach-mmp/include/mach/pxa910.h

···
 #define __ASM_MACH_PXA910_H
 
 extern void pxa910_timer_init(void);
+extern void __init icu_init_irq(void);
 extern void __init pxa910_init_irq(void);
 
 #include <linux/i2c.h>

arch/arm/mach-mmp/irq.c drivers/irqchip/irq-mmp.c

···
 #include <mach/pm-pxa910.h>
 #endif
 
-#include "common.h"
-
 #define MAX_ICU_NR		16
 
 struct icu_chip_data {

arch/arm/mach-mmp/pxa910.c

···
 #include <mach/dma.h>
 #include <mach/mfp.h>
 #include <mach/devices.h>
+#include <mach/pxa910.h>
 
 #include "common.h"
 

drivers/irqchip/Makefile

···
 
 obj-$(CONFIG_ARCH_BCM2835)		+= irq-bcm2835.o
 obj-$(CONFIG_ARCH_EXYNOS)		+= exynos-combiner.o
+obj-$(CONFIG_ARCH_MMP)			+= irq-mmp.o
 obj-$(CONFIG_ARCH_MVEBU)		+= irq-armada-370-xp.o
 obj-$(CONFIG_ARCH_MXS)			+= irq-mxs.o
 obj-$(CONFIG_ARCH_S3C24XX)		+= irq-s3c24xx.o