clocksource: convert mips to generic i8253 clocksource

Convert MIPS i8253 clocksource code to use generic i8253 clocksource.

Acked-by: John Stultz <john.stultz@linaro.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/mips/include/asm/i8253.h b/arch/mips/include/asm/i8253.h
index 48bb823..9ad0113 100644
--- a/arch/mips/include/asm/i8253.h
+++ b/arch/mips/include/asm/i8253.h
@@ -12,8 +12,13 @@
 #define PIT_CH0			0x40
 #define PIT_CH2			0x42
 
+#define PIT_LATCH		LATCH
+
 extern raw_spinlock_t i8253_lock;
 
 extern void setup_pit_timer(void);
 
+#define inb_pit inb_p
+#define outb_pit outb_p
+
 #endif /* __ASM_I8253_H */