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authorIngo Molnar <mingo@elte.hu>2008-01-30 13:31:24 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:31:24 +0100
commit41e191e85a122ad822deb7525a015410012e6c70 (patch)
tree242e5b4a24ffcc7f6b3cb63b96c2a397113af1dd
parentded9aa0db815b4e1271001561e177755cb8b9468 (diff)
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>
-rw-r--r--drivers/input/mouse/pc110pad.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index 8991ab0b4fe..61cff8374e6 100644
--- 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;