[PATCH 0/7] rtw89: coex: improve performance when Wifi PS is on

[PATCH 0/7] rtw89: coex: improve performance when Wifi PS is on

[Ping-Ke Shih]

This patchset is to improve performance especially wifi PS is on. During
debug, we found some counters are abnormal, so fix them in this patchset
as well. Because coex highly depends on BT firmware, we update the coex
version to avoid mismatching.

Ching-Te Ku (7):
  rtw89: coex: correct C2H header length
  rtw89: coex: Not to send H2C when WL not ready and count H2C
  rtw89: coex: Add MAC API to get BT polluted counter
  rtw89: coex: Define LPS state for BTC using
  rtw89: coex: Update BT counters while receiving report
  rtw89: coex: Cancel PS leaving while C2H comes
  rtw89: coex: Update COEX to 5.5.8

 drivers/net/wireless/realtek/rtw89/coex.c     | 73 ++++++++++++-------
 drivers/net/wireless/realtek/rtw89/coex.h     |  6 ++
 drivers/net/wireless/realtek/rtw89/core.h     |  1 +
 drivers/net/wireless/realtek/rtw89/mac.c      | 12 +++
 drivers/net/wireless/realtek/rtw89/mac.h      |  1 +
 drivers/net/wireless/realtek/rtw89/rtw8852a.c |  2 +-
 6 files changed, 69 insertions(+), 26 deletions(-)

-- 
2.25.1

[PATCH 1/7] rtw89: coex: correct C2H header length

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

To resolve C2H handle length mismatch, or it will parse the c2h content
out of array.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/coex.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index abe4b6549ab22..f220229a7a482 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -4494,6 +4494,8 @@ void rtw89_btc_c2h_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb,
 	struct rtw89_btc_btf_fwinfo *pfwinfo = &btc->fwinfo;
 	u8 *buf = &skb->data[RTW89_C2H_HEADER_LEN];
 
+	len -= RTW89_C2H_HEADER_LEN;
+
 	rtw89_debug(rtwdev, RTW89_DBG_BTC,
 		    "[BTC], %s(): C2H BT len:%d class:%d fun:%d\n",
 		    __func__, len, class, func);
-- 
2.25.1

[PATCH 2/7] rtw89: coex: Not to send H2C when WL not ready and count H2C

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

Prevent to send H2C request to FW when BTC is not initialized or
WL is under power saving. Add counter to count the H2C success or fail.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/coex.c | 27 +++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index f220229a7a482..c8f912e7344d0 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -540,8 +540,31 @@ static void _update_bt_scbd(struct rtw89_dev *rtwdev, bool only_update);
 static void _send_fw_cmd(struct rtw89_dev *rtwdev, u8 h2c_class, u8 h2c_func,
 			 void *param, u16 len)
 {
-	rtw89_fw_h2c_raw_with_hdr(rtwdev, h2c_class, h2c_func, param, len,
-				  false, true);
+	struct rtw89_btc *btc = &rtwdev->btc;
+	struct rtw89_btc_btf_fwinfo *pfwinfo = &btc->fwinfo;
+	struct rtw89_btc_cx *cx = &btc->cx;
+	struct rtw89_btc_wl_info *wl = &cx->wl;
+	int ret;
+
+	if (!wl->status.map.init_ok) {
+		rtw89_debug(rtwdev, RTW89_DBG_BTC,
+			    "[BTC], %s(): return by btc not init!!\n", __func__);
+		pfwinfo->cnt_h2c_fail++;
+		return;
+	} else if ((wl->status.map.rf_off_pre == 1 && wl->status.map.rf_off == 1) ||
+		   (wl->status.map.lps_pre == 1 && wl->status.map.lps == 1)) {
+		rtw89_debug(rtwdev, RTW89_DBG_BTC,
+			    "[BTC], %s(): return by wl off!!\n", __func__);
+		pfwinfo->cnt_h2c_fail++;
+		return;
+	}
+
+	pfwinfo->cnt_h2c++;
+
+	ret = rtw89_fw_h2c_raw_with_hdr(rtwdev, h2c_class, h2c_func, param, len,
+					false, true);
+	if (ret != 0)
+		pfwinfo->cnt_h2c_fail++;
 }
 
 static void _reset_btc_var(struct rtw89_dev *rtwdev, u8 type)
-- 
2.25.1

[PATCH 3/7] rtw89: coex: Add MAC API to get BT polluted counter

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

Add function to get and parse BT polluted counter.
When WLAN Tx was dropped by BT, the packet will be marked as BT polluted.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/coex.c |  6 ++++--
 drivers/net/wireless/realtek/rtw89/core.h |  1 +
 drivers/net/wireless/realtek/rtw89/mac.c  | 12 ++++++++++++
 drivers/net/wireless/realtek/rtw89/mac.h  |  1 +
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index c8f912e7344d0..8763114eab274 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -1126,6 +1126,9 @@ static u32 _chk_btc_report(struct rtw89_dev *rtwdev,
 		wl->ver_info.fw_coex = prpt->wl_fw_coex_ver;
 		wl->ver_info.fw = prpt->wl_fw_ver;
 		dm->wl_fw_cx_offload = !!(prpt->wl_fw_cx_offload);
+
+		btc->cx.cnt_bt[BTC_BCNT_POLUT] =
+			rtw89_mac_get_plt_cnt(rtwdev, RTW89_MAC_0);
 	}
 
 	if (rpt_type >= BTC_RPT_TYPE_BT_VER &&
@@ -4798,7 +4801,6 @@ static void _show_bt_info(struct rtw89_dev *rtwdev, struct seq_file *m)
 	struct rtw89_btc_module *module = &btc->mdinfo;
 	struct rtw89_btc_bt_link_info *bt_linfo = &bt->link_info;
 	u8 *afh = bt_linfo->afh_map;
-	u16 polt_cnt = 0;
 
 	if (!(btc->dm.coex_info_map & BTC_COEX_INFO_BT))
 		return;
@@ -4884,7 +4886,7 @@ static void _show_bt_info(struct rtw89_dev *rtwdev, struct seq_file *m)
 		   " %-15s : Hi-rx = %d, Hi-tx = %d, Lo-rx = %d, Lo-tx = %d (bt_polut_wl_tx = %d)\n",
 		   "[trx_req_cnt]", cx->cnt_bt[BTC_BCNT_HIPRI_RX],
 		   cx->cnt_bt[BTC_BCNT_HIPRI_TX], cx->cnt_bt[BTC_BCNT_LOPRI_RX],
-		   cx->cnt_bt[BTC_BCNT_LOPRI_TX], polt_cnt);
+		   cx->cnt_bt[BTC_BCNT_LOPRI_TX], cx->cnt_bt[BTC_BCNT_POLUT]);
 }
 
 #define CASE_BTC_RSN_STR(e) case BTC_RSN_ ## e: return #e
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index c03e3a13bd560..7c84556ec4ada 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -805,6 +805,7 @@ enum rtw89_btc_bt_state_cnt {
 	BTC_BCNT_HIPRI_RX,
 	BTC_BCNT_LOPRI_TX,
 	BTC_BCNT_LOPRI_RX,
+	BTC_BCNT_POLUT,
 	BTC_BCNT_RATECHG,
 	BTC_BCNT_NUM
 };
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index 999459489e923..b98c47e9ecfe3 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -3450,6 +3450,18 @@ bool rtw89_mac_get_ctrl_path(struct rtw89_dev *rtwdev)
 	return FIELD_GET(B_AX_LTE_MUX_CTRL_PATH >> 24, val);
 }
 
+u16 rtw89_mac_get_plt_cnt(struct rtw89_dev *rtwdev, u8 band)
+{
+	u32 reg;
+	u16 cnt;
+
+	reg = rtw89_mac_reg_by_idx(R_AX_BT_PLT, band);
+	cnt = rtw89_read32_mask(rtwdev, reg, B_AX_BT_PLT_PKT_CNT_MASK);
+	rtw89_write16_set(rtwdev, reg, B_AX_BT_PLT_RST);
+
+	return cnt;
+}
+
 static void rtw89_mac_bfee_ctrl(struct rtw89_dev *rtwdev, u8 mac_idx, bool en)
 {
 	u32 reg;
diff --git a/drivers/net/wireless/realtek/rtw89/mac.h b/drivers/net/wireless/realtek/rtw89/mac.h
index 94cd29bd83d77..b7d13edf7dd19 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.h
+++ b/drivers/net/wireless/realtek/rtw89/mac.h
@@ -788,6 +788,7 @@ int rtw89_mac_coex_init(struct rtw89_dev *rtwdev, const struct rtw89_mac_ax_coex
 int rtw89_mac_cfg_gnt(struct rtw89_dev *rtwdev,
 		      const struct rtw89_mac_ax_coex_gnt *gnt_cfg);
 int rtw89_mac_cfg_plt(struct rtw89_dev *rtwdev, struct rtw89_mac_ax_plt *plt);
+u16 rtw89_mac_get_plt_cnt(struct rtw89_dev *rtwdev, u8 band);
 void rtw89_mac_cfg_sb(struct rtw89_dev *rtwdev, u32 val);
 u32 rtw89_mac_get_sb(struct rtw89_dev *rtwdev);
 bool rtw89_mac_get_ctrl_path(struct rtw89_dev *rtwdev);
-- 
2.25.1

[PATCH 4/7] rtw89: coex: Define LPS state for BTC using

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

To distinguish three types of LPS state.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/coex.c | 8 ++++----
 drivers/net/wireless/realtek/rtw89/coex.h | 6 ++++++
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index 8763114eab274..436f5ccb193a5 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -1622,7 +1622,7 @@ static void _set_rf_trx_para(struct rtw89_dev *rtwdev)
 	_set_bt_rx_gain(rtwdev, para.bt_rx_gain);
 
 	if (bt->enable.now == 0 || wl->status.map.rf_off == 1 ||
-	    wl->status.map.lps == 1)
+	    wl->status.map.lps == BTC_LPS_RF_OFF)
 		wl_stb_chg = 0;
 	else
 		wl_stb_chg = 1;
@@ -4225,16 +4225,16 @@ void rtw89_btc_ntfy_radio_state(struct rtw89_dev *rtwdev, enum btc_rfctrl rf_sta
 	switch (rf_state) {
 	case BTC_RFCTRL_WL_OFF:
 		wl->status.map.rf_off = 1;
-		wl->status.map.lps = 0;
+		wl->status.map.lps = BTC_LPS_OFF;
 		break;
 	case BTC_RFCTRL_FW_CTRL:
 		wl->status.map.rf_off = 0;
-		wl->status.map.lps = 1;
+		wl->status.map.lps = BTC_LPS_RF_OFF;
 		break;
 	case BTC_RFCTRL_WL_ON:
 	default:
 		wl->status.map.rf_off = 0;
-		wl->status.map.lps = 0;
+		wl->status.map.lps = BTC_LPS_OFF;
 		break;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw89/coex.h b/drivers/net/wireless/realtek/rtw89/coex.h
index 4b4565d15c9ec..c3a722d259d7f 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.h
+++ b/drivers/net/wireless/realtek/rtw89/coex.h
@@ -130,6 +130,12 @@ enum btc_rfctrl {
 	BTC_RFCTRL_MAX
 };
 
+enum btc_lps_state {
+	BTC_LPS_OFF = 0,
+	BTC_LPS_RF_OFF = 1,
+	BTC_LPS_RF_ON = 2
+};
+
 void rtw89_btc_ntfy_poweron(struct rtw89_dev *rtwdev);
 void rtw89_btc_ntfy_poweroff(struct rtw89_dev *rtwdev);
 void rtw89_btc_ntfy_init(struct rtw89_dev *rtwdev, u8 mode);
-- 
2.25.1

[PATCH 5/7] rtw89: coex: Update BT counters while receiving report

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

Move _chk_btc_err and update_bt_cnt to _chk_btc_report(),
so we can update counter/info to COEX at a proper moment,
instead of relying on a user does cat the debug info periodically.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/coex.c | 32 +++++++++++------------
 1 file changed, 15 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index 436f5ccb193a5..929818c3a776b 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -1118,6 +1118,10 @@ static u32 _chk_btc_report(struct rtw89_dev *rtwdev,
 			diff_t = pcysta->tavg_cycle[CXT_WL] - wl_slot_set;
 			_chk_btc_err(rtwdev, BTC_DCNT_WL_SLOT_DRIFT, diff_t);
 		}
+
+		_chk_btc_err(rtwdev, BTC_DCNT_W1_FREEZE, pcysta->slot_cnt[CXST_W1]);
+		_chk_btc_err(rtwdev, BTC_DCNT_W1_FREEZE, pcysta->slot_cnt[CXST_W1]);
+		_chk_btc_err(rtwdev, BTC_DCNT_CYCLE_FREEZE, (u32)pcysta->cycles);
 	}
 
 	if (rpt_type == BTC_RPT_TYPE_CTRL) {
@@ -1127,8 +1131,17 @@ static u32 _chk_btc_report(struct rtw89_dev *rtwdev,
 		wl->ver_info.fw = prpt->wl_fw_ver;
 		dm->wl_fw_cx_offload = !!(prpt->wl_fw_cx_offload);
 
-		btc->cx.cnt_bt[BTC_BCNT_POLUT] =
-			rtw89_mac_get_plt_cnt(rtwdev, RTW89_MAC_0);
+		_chk_btc_err(rtwdev, BTC_DCNT_RPT_FREEZE,
+			     pfwinfo->event[BTF_EVNT_RPT]);
+
+		/* To avoid I/O if WL LPS or power-off */
+		if (wl->status.map.lps != BTC_LPS_RF_OFF && !wl->status.map.rf_off) {
+			rtwdev->chip->ops->btc_update_bt_cnt(rtwdev);
+			_chk_btc_err(rtwdev, BTC_DCNT_BTCNT_FREEZE, 0);
+
+			btc->cx.cnt_bt[BTC_BCNT_POLUT] =
+				rtw89_mac_get_plt_cnt(rtwdev, RTW89_MAC_0);
+		}
 	}
 
 	if (rpt_type >= BTC_RPT_TYPE_BT_VER &&
@@ -4793,7 +4806,6 @@ static void _show_bt_profile_info(struct rtw89_dev *rtwdev, struct seq_file *m)
 
 static void _show_bt_info(struct rtw89_dev *rtwdev, struct seq_file *m)
 {
-	const struct rtw89_chip_info *chip = rtwdev->chip;
 	struct rtw89_btc *btc = &rtwdev->btc;
 	struct rtw89_btc_cx *cx = &btc->cx;
 	struct rtw89_btc_bt_info *bt = &cx->bt;
@@ -4876,12 +4888,6 @@ static void _show_bt_info(struct rtw89_dev *rtwdev, struct seq_file *m)
 		   cx->cnt_bt[BTC_BCNT_INFOUPDATE],
 		   cx->cnt_bt[BTC_BCNT_INFOSAME]);
 
-	if (wl->status.map.lps || wl->status.map.rf_off)
-		return;
-
-	chip->ops->btc_update_bt_cnt(rtwdev);
-	_chk_btc_err(rtwdev, BTC_DCNT_BTCNT_FREEZE, 0);
-
 	seq_printf(m,
 		   " %-15s : Hi-rx = %d, Hi-tx = %d, Lo-rx = %d, Lo-tx = %d (bt_polut_wl_tx = %d)\n",
 		   "[trx_req_cnt]", cx->cnt_bt[BTC_BCNT_HIPRI_RX],
@@ -5254,8 +5260,6 @@ static void _show_fbtc_cysta(struct rtw89_dev *rtwdev, struct seq_file *m)
 		   pcysta->bcn_cnt[CXBCN_BT_SLOT],
 		   pcysta->bcn_cnt[CXBCN_BT_OK]);
 
-	_chk_btc_err(rtwdev, BTC_DCNT_CYCLE_FREEZE, (u32)pcysta->cycles);
-
 	for (i = 0; i < CXST_MAX; i++) {
 		if (!pcysta->slot_cnt[i])
 			continue;
@@ -5279,9 +5283,6 @@ static void _show_fbtc_cysta(struct rtw89_dev *rtwdev, struct seq_file *m)
 	}
 	seq_puts(m, "\n");
 
-	_chk_btc_err(rtwdev, BTC_DCNT_W1_FREEZE, pcysta->slot_cnt[CXST_W1]);
-	_chk_btc_err(rtwdev, BTC_DCNT_B1_FREEZE, pcysta->slot_cnt[CXST_B1]);
-
 	seq_printf(m, " %-15s : avg_t[wl:%d/bt:%d/lk:%d.%03d]",
 		   "[cycle_time]",
 		   pcysta->tavg_cycle[CXT_WL],
@@ -5633,9 +5634,6 @@ static void _show_summary(struct rtw89_dev *rtwdev, struct seq_file *m)
 			   pfwinfo->event[BTF_EVNT_RPT], prptctrl->rpt_cnt,
 			   prptctrl->rpt_enable, dm->error.val);
 
-		_chk_btc_err(rtwdev, BTC_DCNT_RPT_FREEZE,
-			     pfwinfo->event[BTF_EVNT_RPT]);
-
 		if (dm->error.map.wl_fw_hang)
 			seq_puts(m, " (WL FW Hang!!)");
 		seq_puts(m, "\n");
-- 
2.25.1

[PATCH 6/7] rtw89: coex: Cancel PS leaving while C2H comes

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

It's unnecessary to leave WL PS while C2H comes.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/coex.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index 929818c3a776b..9f7d4f8d0c56f 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -4553,14 +4553,12 @@ void rtw89_btc_c2h_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb,
 		rtw89_debug(rtwdev, RTW89_DBG_BTC,
 			    "[BTC], handle C2H BT INFO with data %8ph\n", buf);
 		btc->cx.cnt_bt[BTC_BCNT_INFOUPDATE]++;
-		rtw89_leave_ps_mode(rtwdev);
 		_update_bt_info(rtwdev, buf, len);
 		break;
 	case BTF_EVNT_BT_SCBD:
 		rtw89_debug(rtwdev, RTW89_DBG_BTC,
 			    "[BTC], handle C2H BT SCBD with data %8ph\n", buf);
 		btc->cx.cnt_bt[BTC_BCNT_SCBDUPDATE]++;
-		rtw89_leave_ps_mode(rtwdev);
 		_update_bt_scbd(rtwdev, false);
 		break;
 	case BTF_EVNT_BT_PSD:
-- 
2.25.1

[PATCH 7/7] rtw89: coex: Update COEX to 5.5.8

[Ping-Ke Shih]

From: Ching-Te Ku <ku920601@realtek.com>

Update COEX version.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/rtw8852a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852a.c b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
index 5ec13ae0abcdb..6b75e4bc73523 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
@@ -2031,7 +2031,7 @@ const struct rtw89_chip_info rtw8852a_chip_info = {
 	.limit_efuse_size	= 1152,
 	.phycap_addr		= 0x580,
 	.phycap_size		= 128,
-	.para_ver		= 0x05050764,
+	.para_ver		= 0x05050864,
 	.wlcx_desired		= 0x05050000,
 	.btcx_desired		= 0x5,
 	.scbd			= 0x1,
-- 
2.25.1

Re: [PATCH 1/7] rtw89: coex: correct C2H header length

[Kalle Valo]

Ping-Ke Shih <pkshih@realtek.com> wrote:

> From: Ching-Te Ku <ku920601@realtek.com>
> 
> To resolve C2H handle length mismatch, or it will parse the c2h content
> out of array.
> 
> Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

7 patches applied to wireless-drivers-next.git, thanks.

b3131a41ac6f rtw89: coex: correct C2H header length
f8028a9a92f2 rtw89: coex: Not to send H2C when WL not ready and count H2C
8c7e9ceb5bac rtw89: coex: Add MAC API to get BT polluted counter
2200ff3f0d1d rtw89: coex: Define LPS state for BTC using
eb87d79911c6 rtw89: coex: Update BT counters while receiving report
bd309c8b4965 rtw89: coex: Cancel PS leaving while C2H comes
4c02043c5a52 rtw89: coex: Update COEX to 5.5.8

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20211209083229.10815-2-pkshih@realtek.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches