Commit 0df03379 authored by Nicholas Mc Guire's avatar Nicholas Mc Guire Committed by Mauro Carvalho Chehab
Browse files

[media] ov9650: use msleep() for uncritical long delay 

ulseep_range() uses hrtimers and provides no advantage over msleep()
for larger delays. Fix up the 25ms delays here to use msleep() and
reduce the load on the hrtimer subsystem.

Link: http://lkml.org/lkml/2017/1/11/377


Reviwed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: default avatarNicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 70829035

drivers/media/i2c/ov9650.c

+2 −2
Original line number Diff line number Diff line
@@ -522,7 +522,7 @@ static void __ov965x_set_power(struct ov965x *ov965x, int on) 
	if (on) {

		ov965x_gpio_set(ov965x->gpios[GPIO_PWDN], 0);

		ov965x_gpio_set(ov965x->gpios[GPIO_RST], 0);

		usleep_range(25000, 26000);

		msleep(25);

	} else {

		ov965x_gpio_set(ov965x->gpios[GPIO_RST], 1);

		ov965x_gpio_set(ov965x->gpios[GPIO_PWDN], 1);
@@ -1438,7 +1438,7 @@ static int ov965x_detect_sensor(struct v4l2_subdev *sd) 


	mutex_lock(&ov965x->lock);

	__ov965x_set_power(ov965x, 1);

	usleep_range(25000, 26000);

	msleep(25);



	/* Check sensor revision */

	ret = ov965x_read(client, REG_PID, &pid);

CRA Git | Maintained and supported by SUSTech CRA and CCSE