wifi: rt2x00: correct wrong BBP register in RxDCOC calibration

[ Upstream commit 50da74e1e8b682853d1e07fc8bbe3a0774ae5e09 ]

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>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/TYAP286MB0315B13B89DF57B6B27BB854BCAFA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index e65cc00fa17c9d7744ac702d1aa796ca818bccd7..c13ae87f94f498ac2b7b1ec6afd8c44840597244 100644 (file)
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -8695,7 +8695,7 @@ static void rt2800_rxdcoc_calibration(struct rt2x00_dev *rt2x00dev)
        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);