commit: e67dd874e60529dbd2e8232babb1e23479ba2ffa
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@xxxxxxxxx>
Date: Tue, 19 Mar 2013 07:52:48 +0100
Subject: b43: N-PHY: increase initial value of "mind" in RSSI calibration
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We're using "mind" variable to find the VCM that got the best polling
results. For each VCM we calculte "currd" which is compared to the
"mind". For PHY rev3+ "currd" gets values around 14k-40k. Looking for a
value smaller than 40 makes no sense, so increase the initial value.
This fixes a regression introduced in 3.4 by commit:
e0c9a0219a8f542e3946fe972a68aacf8c3f906c
(my BCM4322 performance dropped from 18,4Mb/s to 9,26Mb/s)
Signed-off-by: RafaÅ? MiÅ?ecki <zajec5@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
---
drivers/net/wireless/b43/phy_n.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 3c35382..e014a7a 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -1615,7 +1615,7 @@ static void b43_nphy_rev3_rssi_cal(struct b43_wldev *dev)
}
for (i = 0; i < 4; i += 2) {
s32 curr;
- s32 mind = 40;
+ s32 mind = 0x100000;
s32 minpoll = 249;
u8 minvcm = 0;
if (2 * core != i)
@@ -1799,7 +1799,7 @@ static void b43_nphy_rev2_rssi_cal(struct b43_wldev *dev, u8 type)
}
for (i = 0; i < 4; i++) {
- s32 mind = 40;
+ s32 mind = 0x100000;
u8 minvcm = 0;
s32 minpoll = 249;
s32 curr;
--
1.7.10.4
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