Messages in this thread Patch in this message | | | From | Aniroop Mathur <> | Subject | [PATCH] Input: mouse: navpoint - Change msleep to usleep_range for small msecs | Date | Mon, 28 Nov 2016 22:58:05 +0530 |
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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 <a.mathur@samsung.com> --- drivers/input/mouse/navpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/mouse/navpoint.c b/drivers/input/mouse/navpoint.c index d6e8f58..2ede00b 100644 --- a/drivers/input/mouse/navpoint.c +++ b/drivers/input/mouse/navpoint.c @@ -166,7 +166,7 @@ static void navpoint_up(struct navpoint *navpoint) for (timeout = 100; timeout != 0; --timeout) { if (!(pxa_ssp_read_reg(ssp, SSSR) & SSSR_CSS)) break; - msleep(1); + usleep_range(1000, 1100); } if (timeout == 0) -- 2.6.2
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