diff mbox

[10/11] rt2800: replace msleep() with usleep_range() on channel switch

Message ID 1482144777-16760-11-git-send-email-sgruszka@redhat.com (mailing list archive)
State Accepted
Commit 31369c323ba0dc839d8a4e5a5727adc76814959c
Delegated to: Kalle Valo
Headers show

Commit Message

Stanislaw Gruszka Dec. 19, 2016, 10:52 a.m. UTC 
msleep(1) can sleep much more time then requested 1ms, this is not good
on channel switch, which we want to be performed fast (i.e. to make scan
faster). Replace msleep() with usleep_range(), which has much smaller
maximum sleeping time boundary.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
---
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 29d98e4..0220184 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -2110,7 +2110,9 @@  static void rt2800_config_channel_rf3xxx(struct rt2x00_dev *rt2x00dev,
 	rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
 	rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1);
 	rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
-	msleep(1);
+
+	usleep_range(1000, 1500);
+
 	rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0);
 	rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
 }
@@ -3442,7 +3444,7 @@  static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 		}
 	}
 
-	msleep(1);
+	usleep_range(1000, 1500);
 
 	/*
 	 * Clear channel statistic counters