linux-kernel - [PATCH 4.14 180/210] wifi: rt2x00: correctly set BBP register 86 for MT7620

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Date:   Mon, 24 Oct 2022 13:31:37 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Serge Vasilugin <vasilugin@...dex.ru>,
        Daniel Golle <daniel@...rotopia.org>,
        Stanislaw Gruszka <stf_xl@...pl>,
        Kalle Valo <kvalo@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 180/210] wifi: rt2x00: correctly set BBP register 86 for MT7620

From: Daniel Golle <daniel@...rotopia.org>

[ Upstream commit c9aada64fe6493461127f1522d7e2f01792d2424 ]

Instead of 0 set the correct value for BBP register 86 for MT7620.

Reported-by: Serge Vasilugin <vasilugin@...dex.ru>
Signed-off-by: Daniel Golle <daniel@...rotopia.org>
Acked-by: Stanislaw Gruszka <stf_xl@...pl>
Signed-off-by: Kalle Valo <kvalo@...nel.org>
Link: https://lore.kernel.org/r/257267247ee4fa7ebc6a5d0c4948b3f8119c0d77.1663445157.git.daniel@makrotopia.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 57fa472b5c4e..155c08dc2e0e 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -3655,7 +3655,10 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 		rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain);
 		rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
 		rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain);
-		rt2800_bbp_write(rt2x00dev, 86, 0);
+		if (rt2x00_rt(rt2x00dev, RT6352))
+			rt2800_bbp_write(rt2x00dev, 86, 0x38);
+		else
+			rt2800_bbp_write(rt2x00dev, 86, 0);
 	}
 
 	if (rf->channel <= 14) {
-- 
2.35.1