Thread (2 messages) 2 messages, 2 authors, 2016-12-03

[PATCH] Input: keyboard: lm8323 - Change msleep to usleep_range for small msecs

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STALE3597d

From: Aniroop Mathur <hidden>
Date: 2016-11-28 17:00:52
Also in: lkml
Subsystem: input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers: Dmitry Torokhov, Linus Torvalds

msleep(1~20) may not do what the caller intends, and will often sleep longer.
(~20 ms actual sleep for any value given in the 1~20ms range)
This is not the desired behaviour for many cases like device resume time,
device suspend time, device enable time, retry logic, etc.
Thus, change msleep to usleep_range for precise wakeups.

Signed-off-by: Aniroop Mathur <redacted>
---
 drivers/input/keyboard/lm8323.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index 21bea52..14679e9 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -689,7 +689,7 @@ static int lm8323_probe(struct i2c_client *client,
 			break;
 		}
 
-		msleep(1);
+		usleep_range(1000, 1100);
 	}
 
 	lm8323_configure(lm);
-- 
2.6.2
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