From 31369c323ba0dc839d8a4e5a5727adc76814959c Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 19 Dec 2016 11:52:56 +0100 Subject: [PATCH] rt2800: replace msleep() with usleep_range() on channel switch 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 Signed-off-by: Kalle Valo --- drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index 13211c8854cc..5436cdb07937 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 -- 2.20.1