Input: sa1111ps2 - extend test delay

A 2us delay is too small for the bus to settle after writing to the
register.  Extend to 10us which gives more reliable results.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
index f1c0362..f9e5c79 100644 (file)
--- a/drivers/input/serio/sa1111ps2.c
+++ b/drivers/input/serio/sa1111ps2.c
@@ -212,7 +212,7 @@ static unsigned int ps2_test_one(struct ps2if *ps2if,
 
        writel_relaxed(PS2CR_ENA | mask, ps2if->base + PS2CR);
 
-       udelay(2);
+       udelay(10);
 
        val = readl_relaxed(ps2if->base + PS2STAT);
        return val & (PS2STAT_KBC | PS2STAT_KBD);