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| author |   Russell King <rmk+kernel@armlinux.org.uk> | 2017-09-26 09:57:12 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-09-26 11:52:08 -0700 |
| commit | 361fa055f1ef475ca9f9bdf88884fd128273366e (patch) | |
| tree | 5be074284620e0f9de36ab82571cd0be6954cdd5 /drivers/input/serio/sa1111ps2.c | |
| parent | Input: sa1111ps2 - remove special sa1111 mmio accessors (diff) | |
| download | linux-dev-361fa055f1ef475ca9f9bdf88884fd128273366e.tar.xz linux-dev-361fa055f1ef475ca9f9bdf88884fd128273366e.zip | |
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>
Diffstat (limited to 'drivers/input/serio/sa1111ps2.c')
| -rw-r--r-- | drivers/input/serio/sa1111ps2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c index f1c036260d25..f9e5c793f4f0 100644 --- 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); |