x86: replace outb_p() with udelay(2) in drivers/input/mouse/pc110pad.c

replace outb_p() with udelay(2). This is a real ISA device so it likely
needs this particular delay.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index 8991ab0b4fe3b3caed329b0a32aea07d29c6d303..61cff8374e6c0047f54779e358563745ee7b8226 100644 (file)
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -39,6 +39,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/pci.h>
+#include <linux/delay.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -62,8 +63,10 @@ static irqreturn_t pc110pad_interrupt(int irq, void *ptr)
        int value     = inb_p(pc110pad_io);
        int handshake = inb_p(pc110pad_io + 2);
 
-       outb_p(handshake |  1, pc110pad_io + 2);
-       outb_p(handshake & ~1, pc110pad_io + 2);
+       outb(handshake |  1, pc110pad_io + 2);
+       udelay(2);
+       outb(handshake & ~1, pc110pad_io + 2);
+       udelay(2);
        inb_p(0x64);
 
        pc110pad_data[pc110pad_count++] = value;