Commit 87360e68 authored by Akihiro Tsukada's avatar Akihiro Tsukada Committed by Mauro Carvalho Chehab

media: dvb-usb-v2/gl861: use usleep_range() for short delay

As the kernel doc "timers-howto.txt" reads,
short delay with msleep() can take much longer.
In a case of raspbery-pi platform where CONFIG_HZ_100 was set,
it actually affected the init of Friio devices
since it issues lots of i2c transactions with short delay.
Signed-off-by: default avatarAkihiro Tsukada <tskd08@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 17459727
...@@ -43,7 +43,7 @@ static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr, ...@@ -43,7 +43,7 @@ static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
return -EINVAL; return -EINVAL;
} }
msleep(1); /* avoid I2C errors */ usleep_range(1000, 2000); /* avoid I2C errors */
return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type, return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
value, index, rbuf, rlen, 2000); value, index, rbuf, rlen, 2000);
......
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