From: Stanislaw Gruszka <sgruszka@redhat.com>
To: linux-wireless@vger.kernel.org
Cc: Helmut Schaa <helmut.schaa@googlemail.com>,
Stanislaw Gruszka <sgruszka@redhat.com>
Subject: [PATCH 10/11] rt2800: replace msleep() with usleep_range() on channel switch
Date: Mon, 19 Dec 2016 11:52:56 +0100 [thread overview]
Message-ID: <1482144777-16760-11-git-send-email-sgruszka@redhat.com> (raw)
In-Reply-To: <1482144777-16760-1-git-send-email-sgruszka@redhat.com>
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 --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
--
1.7.1
next prev parent reply other threads:[~2016-12-19 10:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-19 10:52 [PATCH 00/11] rt2800 patches 19.12.2016 Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 01/11] rt2800: make rx ampdu_factor depend on number of rx chains Stanislaw Gruszka
2016-12-30 12:08 ` Kalle Valo
2016-12-19 10:52 ` [PATCH 02/11] rt2800: don't set ht parameters for non-aggregated frames Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 03/11] rt2800: set minimum MPDU and PSDU lengths to sane values Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 04/11] rt2800: set MAX_PSDU len according to remote STAs capabilities Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 05/11] rt2800: rename adjust_freq_offset function Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 06/11] rt2800: warn if doing VCO recalibration for unknow RF chip Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 07/11] rt2800: perform VCO recalibration for RF5592 chip Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 08/11] rt2x00: merge agc and vco works with link tuner Stanislaw Gruszka
2016-12-19 10:52 ` [PATCH 09/11] rt2800: replace mdelay by usleep on vco calibration Stanislaw Gruszka
2016-12-19 10:52 ` Stanislaw Gruszka [this message]
2016-12-19 10:52 ` [PATCH 11/11] rt2x00: add mutex to synchronize config and link tuner Stanislaw Gruszka
2016-12-30 12:04 ` [11/11] " Kalle Valo
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