linux-kernel - [PATCH] drivers/mediatek: Fix some mt7601u vendor could not connect

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Message-ID: <E552B9CD8228F9A9+20240703102031.74932-1-wangyuli@uniontech.com>
Date: Wed,  3 Jul 2024 18:20:31 +0800
From: WangYuli <wangyuli@...ontech.com>
To: kuba@...nel.org,
	kvalo@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	guanwentao@...ontech.com,
	sergio.it.consultant@...il.com
Cc: linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	WangYuli <wangyuli@...ontech.com>
Subject: [PATCH] drivers/mediatek: Fix some mt7601u vendor could not connect

Some mt7601 devices cannot establish a connection properly.
This patch fixes the issue.
We do not know why, but it just works.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1716301/comments/52
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1716301/comments/53
Link: https://github.com/kuba-moo/mt7601u/issues/64
Link: https://www.mediatek.com/products/broadband-wifi/mt7601u
Signed-off-by: Wentao Guan <guanwentao@...ontech.com>
Signed-off-by: WangYuli <wangyuli@...ontech.com>
---
 drivers/net/wireless/mediatek/mt7601u/mcu.c | 1 -
 drivers/net/wireless/mediatek/mt7601u/phy.c | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt7601u/mcu.c b/drivers/net/wireless/mediatek/mt7601u/mcu.c
index 1b5cc271a9e1..15751d11b4dc 100644
--- a/drivers/net/wireless/mediatek/mt7601u/mcu.c
+++ b/drivers/net/wireless/mediatek/mt7601u/mcu.c
@@ -446,7 +446,6 @@ static int mt7601u_load_firmware(struct mt7601u_dev *dev)
 	mt7601u_wr(dev, 0x94c, 0);
 	mt7601u_wr(dev, MT_FCE_PSE_CTRL, 0);
 
-	mt7601u_vendor_reset(dev);
 	msleep(5);
 
 	mt7601u_wr(dev, 0xa44, 0);
diff --git a/drivers/net/wireless/mediatek/mt7601u/phy.c b/drivers/net/wireless/mediatek/mt7601u/phy.c
index d4cd2215aba9..f3c14a1552df 100644
--- a/drivers/net/wireless/mediatek/mt7601u/phy.c
+++ b/drivers/net/wireless/mediatek/mt7601u/phy.c
@@ -589,8 +589,6 @@ void mt7601u_phy_recalibrate_after_assoc(struct mt7601u_dev *dev)
 	if (test_bit(MT7601U_STATE_REMOVED, &dev->state))
 		return;
 
-	mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->curr_temp);
-
 	mt7601u_rxdc_cal(dev);
 }
 
@@ -1160,9 +1158,6 @@ static int mt7601u_init_cal(struct mt7601u_dev *dev)
 	if (ret)
 		return ret;
 	ret = mt7601u_mcu_calibrate(dev, MCU_CAL_RXIQ, 0);
-	if (ret)
-		return ret;
-	ret = mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->dpd_temp);
 	if (ret)
 		return ret;
 
-- 
2.43.4