Commit 0eeecf60 authored by Aniroop Mathur's avatar Aniroop Mathur Committed by Dmitry Torokhov
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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: default avatarAniroop Mathur <a.mathur@samsung.com>
Acked-by: default avatarSimon Budig <simon.budig@kernelconcepts.de>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent c01b5e74

drivers/input/touchscreen/edt-ft5x06.c

+2 −2
Original line number Diff line number Diff line
@@ -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;