linux-kernel - [PATCH 5.13 534/800] rtw88: 8822c: fix lc calibration timing

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Date:   Mon, 12 Jul 2021 08:09:17 +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, Po-Hao Huang <phhuang@...ltek.com>,
        Ping-Ke Shih <pkshih@...ltek.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.13 534/800] rtw88: 8822c: fix lc calibration timing

From: Po-Hao Huang <phhuang@...ltek.com>

[ Upstream commit 05684fd583e1acc34dddea283838fbfbed4904a0 ]

Before this patch, we use value from 2 seconds ago to decide
whether we should do lc calibration.
Although this don't happen frequently, fix flow to the way it should be.

Fixes: 7ae7784ec2a8 ("rtw88: 8822c: add LC calibration for RTL8822C")
Signed-off-by: Po-Hao Huang <phhuang@...ltek.com>
Signed-off-by: Ping-Ke Shih <pkshih@...ltek.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Link: https://lore.kernel.org/r/20210426013252.5665-3-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/realtek/rtw88/rtw8822c.c | 22 ++++++++++---------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 6cb593cc33c2..6d06f26a4894 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -4371,26 +4371,28 @@ static void rtw8822c_pwrtrack_set(struct rtw_dev *rtwdev, u8 rf_path)
 	}
 }
 
-static void rtw8822c_pwr_track_path(struct rtw_dev *rtwdev,
-				    struct rtw_swing_table *swing_table,
-				    u8 path)
+static void rtw8822c_pwr_track_stats(struct rtw_dev *rtwdev, u8 path)
 {
-	struct rtw_dm_info *dm_info = &rtwdev->dm_info;
-	u8 thermal_value, delta;
+	u8 thermal_value;
 
 	if (rtwdev->efuse.thermal_meter[path] == 0xff)
 		return;
 
 	thermal_value = rtw_read_rf(rtwdev, path, RF_T_METER, 0x7e);
-
 	rtw_phy_pwrtrack_avg(rtwdev, thermal_value, path);
+}
 
-	delta = rtw_phy_pwrtrack_get_delta(rtwdev, path);
+static void rtw8822c_pwr_track_path(struct rtw_dev *rtwdev,
+				    struct rtw_swing_table *swing_table,
+				    u8 path)
+{
+	struct rtw_dm_info *dm_info = &rtwdev->dm_info;
+	u8 delta;
 
+	delta = rtw_phy_pwrtrack_get_delta(rtwdev, path);
 	dm_info->delta_power_index[path] =
 		rtw_phy_pwrtrack_get_pwridx(rtwdev, swing_table, path, path,
 					    delta);
-
 	rtw8822c_pwrtrack_set(rtwdev, path);
 }
 
@@ -4401,12 +4403,12 @@ static void __rtw8822c_pwr_track(struct rtw_dev *rtwdev)
 
 	rtw_phy_config_swing_table(rtwdev, &swing_table);
 
+	for (i = 0; i < rtwdev->hal.rf_path_num; i++)
+		rtw8822c_pwr_track_stats(rtwdev, i);
 	if (rtw_phy_pwrtrack_need_lck(rtwdev))
 		rtw8822c_do_lck(rtwdev);
-
 	for (i = 0; i < rtwdev->hal.rf_path_num; i++)
 		rtw8822c_pwr_track_path(rtwdev, &swing_table, i);
-
 }
 
 static void rtw8822c_pwr_track(struct rtw_dev *rtwdev)
-- 
2.30.2