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mac80211: rt2x00: correct wrong BBP register in RxDCOC calibration 

This fix can reduce the total calibration time from 6 seconds to
1 second.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
This commit is contained in:
Shiji Yang 2023-11-09 12:42:09 +08:00 committed by Daniel Golle
parent 6bcd1c2501
commit fbe48e99bd
1 changed files with 26 additions and 0 deletions
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package/kernel/mac80211/patches/rt2x00/101-wifi-rt2x00-correct-wrong-BBP-register-in-RxDCOC-cal.patch Normal file
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@ -0,0 +1,26 @@
From: Shiji Yang <yangshiji66@outlook.com>
Date: Thu, 9 Nov 2023 12:01:18 +0800
Subject: [PATCH] wifi: rt2x00: correct wrong BBP register in RxDCOC
calibration
Refer to Mediatek vendor driver RxDCOC_Calibration() function, when
performing gainfreeze calibration, we should write register 140
instead of 141. This fix can reduce the total calibration time from
6 seconds to 1 second.
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -8711,7 +8711,7 @@ static void rt2800_rxdcoc_calibration(st
rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, saverfb5r4);
rt2800_rfcsr_write_bank(rt2x00dev, 7, 4, saverfb7r4);
- rt2800_bbp_write(rt2x00dev, 158, 141);
+ rt2800_bbp_write(rt2x00dev, 158, 140);
bbpreg = rt2800_bbp_read(rt2x00dev, 159);
bbpreg = bbpreg & (~0x40);
rt2800_bbp_write(rt2x00dev, 159, bbpreg);