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| author | Aniroop Mathur <a.mathur@samsung.com> | 2017-01-04 21:57:51 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-01-06 21:31:52 +0300 |
| commit | 0eeecf60394928b48806b081d4bea1a18db9318c (patch) | |
| tree | 1251fe0f657d83a6144176edafa81fa2369b06c1 /drivers/input/touchscreen/edt-ft5x06.c | |
| parent | c01b5e7464f0cf20936d7467c7528163c4e2782d (diff) | |
| download | linux-0eeecf60394928b48806b081d4bea1a18db9318c.tar.xz | |
Input: edt_ft5x06 - change msleep to usleep_range for small msecs
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>
Acked-by: Simon Budig <simon.budig@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen/edt-ft5x06.c')
| -rw-r--r-- | drivers/input/touchscreen/edt-ft5x06.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index 28466e358fee..8fc629fb023f 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -67,7 +67,7 @@ #define EDT_SWITCH_MODE_RETRIES 10 #define EDT_SWITCH_MODE_DELAY 5 /* msec */ #define EDT_RAW_DATA_RETRIES 100 -#define EDT_RAW_DATA_DELAY 1 /* msec */ +#define EDT_RAW_DATA_DELAY 1000 /* usec */ enum edt_ver { M06, @@ -664,7 +664,7 @@ static ssize_t edt_ft5x06_debugfs_raw_data_read(struct file *file, } do { - msleep(EDT_RAW_DATA_DELAY); + usleep_range(EDT_RAW_DATA_DELAY, EDT_RAW_DATA_DELAY + 100); val = edt_ft5x06_register_read(tsdata, 0x08); if (val < 1) break; |