wifi: rtw89: rtw8852b{t}: fix TSSI debug timestamps

Since the vendor driver is claimed to measure 'tssi_alimk_time' of
'struct rtw89_tssi_info' in microseconds, adjust rtw8852b{t}-specific
'_tssi_alimentk()' to not mess the former with nanoseconds and print
both per-call and accumulated times. Compile tested only.

Fixes: 7f18a70d7b4d ("wifi: rtw89: 8852b: rfk: add TSSI")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250213095006.1308810-1-dmantipov@yandex.ru

3 files changed, 15 insertions, 13 deletions

diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index b3fdd8eded21..eb2a6b90c940 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -5141,7 +5141,7 @@ struct rtw89_tssi_info {
 	u32 alignment_backup_by_ch[RF_PATH_MAX][TSSI_MAX_CH_NUM][TSSI_ALIMK_VALUE_NUM];
 	u32 alignment_value[RF_PATH_MAX][TSSI_ALIMK_MAX][TSSI_ALIMK_VALUE_NUM];
 	bool alignment_done[RF_PATH_MAX][TSSI_ALIMK_MAX];
-	u32 tssi_alimk_time;
+	u64 tssi_alimk_time;
 };
 
 struct rtw89_power_trim_info {
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b_rfk.c b/drivers/net/wireless/realtek/rtw89/rtw8852b_rfk.c
index ef47a5facc83..fbf82d42687b 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b_rfk.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b_rfk.c
@@ -3585,9 +3585,10 @@ static void _tssi_alimentk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
 	u8 ch_idx = _tssi_ch_to_idx(rtwdev, channel);
 	struct rtw8852bx_bb_tssi_bak tssi_bak;
 	s32 aliment_diff, tssi_cw_default;
-	u32 start_time, finish_time;
 	u32 bb_reg_backup[8] = {0};
+	ktime_t start_time;
 	const s16 *power;
+	s64 this_time;
 	u8 band;
 	bool ok;
 	u32 tmp;
@@ -3613,7 +3614,7 @@ static void _tssi_alimentk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
 		return;
 	}
 
-	start_time = ktime_get_ns();
+	start_time = ktime_get();
 
 	if (chan->band_type == RTW89_BAND_2G)
 		power = power_2g;
@@ -3738,12 +3739,12 @@ out:
 	rtw8852bx_bb_restore_tssi(rtwdev, phy, &tssi_bak);
 	rtw8852bx_bb_tx_mode_switch(rtwdev, phy, 0);
 
-	finish_time = ktime_get_ns();
-	tssi_info->tssi_alimk_time += finish_time - start_time;
+	this_time = ktime_us_delta(ktime_get(), start_time);
+	tssi_info->tssi_alimk_time += this_time;
 
 	rtw89_debug(rtwdev, RTW89_DBG_RFK,
-		    "[TSSI PA K] %s processing time = %d ms\n", __func__,
-		    tssi_info->tssi_alimk_time);
+		    "[TSSI PA K] %s processing time = %lld us (acc = %llu us)\n",
+		    __func__, this_time, tssi_info->tssi_alimk_time);
 }
 
 void rtw8852b_dpk_init(struct rtw89_dev *rtwdev)
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852bt_rfk.c b/drivers/net/wireless/realtek/rtw89/rtw8852bt_rfk.c
index 336a83e1d46b..6e6889eea9a0 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852bt_rfk.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852bt_rfk.c
@@ -3663,9 +3663,10 @@ static void _tssi_alimentk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
 	u8 ch_idx = _tssi_ch_to_idx(rtwdev, channel);
 	struct rtw8852bx_bb_tssi_bak tssi_bak;
 	s32 aliment_diff, tssi_cw_default;
-	u32 start_time, finish_time;
 	u32 bb_reg_backup[8] = {};
+	ktime_t start_time;
 	const s16 *power;
+	s64 this_time;
 	u8 band;
 	bool ok;
 	u32 tmp;
@@ -3675,7 +3676,7 @@ static void _tssi_alimentk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
 		    "======> %s   channel=%d   path=%d\n", __func__, channel,
 		    path);
 
-	start_time = ktime_get_ns();
+	start_time = ktime_get();
 
 	if (chan->band_type == RTW89_BAND_2G)
 		power = power_2g;
@@ -3802,12 +3803,12 @@ out:
 	rtw8852bx_bb_restore_tssi(rtwdev, phy, &tssi_bak);
 	rtw8852bx_bb_tx_mode_switch(rtwdev, phy, 0);
 
-	finish_time = ktime_get_ns();
-	tssi_info->tssi_alimk_time += finish_time - start_time;
+	this_time = ktime_us_delta(ktime_get(), start_time);
+	tssi_info->tssi_alimk_time += this_time;
 
 	rtw89_debug(rtwdev, RTW89_DBG_RFK,
-		    "[TSSI PA K] %s processing time = %d ms\n", __func__,
-		    tssi_info->tssi_alimk_time);
+		    "[TSSI PA K] %s processing time = %lld us (acc = %llu us)\n",
+		    __func__, this_time, tssi_info->tssi_alimk_time);
 }
 
 void rtw8852bt_dpk_init(struct rtw89_dev *rtwdev)