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Input: sa1111ps2 - extend test delay

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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>
This commit is contained in:
Russell King 2017-09-26 09:57:12 -07:00 committed by Dmitry Torokhov
parent a12ded48b3
commit 361fa055f1
1 changed files with 1 additions and 1 deletions
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2
drivers/input/serio/sa1111ps2.c
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@ -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);