diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c
index 5a181e01ebef..6652c3fc3159 100644
--- a/drivers/net/wireless/realtek/rtw88/debug.c
+++ b/drivers/net/wireless/realtek/rtw88/debug.c
@@ -694,6 +694,40 @@ static int rtw_debugfs_get_phy_info(struct seq_file *m, void *v)
 	return 0;
 }
 
+static ssize_t rtw_debugfs_set_edcca_enable(struct file *filp,
+					    const char __user *buffer,
+					    size_t count, loff_t *loff)
+{
+	struct seq_file *seqpriv = (struct seq_file *)filp->private_data;
+	struct rtw_debugfs_priv *debugfs_priv = seqpriv->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	int ret;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 1);
+
+	ret = kstrtobool(tmp, &rtw_edcca_enabled);
+	if (ret) {
+		rtw_warn(rtwdev, "invalid arguments\n");
+		return ret;
+	}
+
+	rtw_phy_adaptivity_set_mode(rtwdev);
+
+	return count;
+}
+
+static int rtw_debugfs_get_edcca_enable(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	struct rtw_dm_info *dm_info = &rtwdev->dm_info;
+
+	seq_printf(m, "EDCCA mode %d\n", dm_info->edcca_mode);
+
+	return 0;
+}
+
 #define rtw_debug_impl_mac(page, addr)				\
 static struct rtw_debugfs_priv rtw_debug_priv_mac_ ##page = {	\
 	.cb_read = rtw_debug_get_mac_page,			\
@@ -784,6 +818,11 @@ static struct rtw_debugfs_priv rtw_debug_priv_phy_info = {
 	.cb_read = rtw_debugfs_get_phy_info,
 };
 
+static struct rtw_debugfs_priv rtw_debug_priv_edcca_enable = {
+	.cb_write = rtw_debugfs_set_edcca_enable,
+	.cb_read = rtw_debugfs_get_edcca_enable,
+};
+
 #define rtw_debugfs_add_core(name, mode, fopname, parent)		\
 	do {								\
 		rtw_debug_priv_ ##name.rtwdev = rtwdev;			\
@@ -854,6 +893,7 @@ void rtw_debugfs_init(struct rtw_dev *rtwdev)
 	}
 	rtw_debugfs_add_r(rf_dump);
 	rtw_debugfs_add_r(tx_pwr_tbl);
+	rtw_debugfs_add_rw(edcca_enable);
 }
 
 #endif /* CONFIG_RTW88_DEBUGFS */
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 5d43bef91a3c..ffe3612e63a6 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -21,6 +21,7 @@ EXPORT_SYMBOL(rtw_fw_lps_deep_mode);
 bool rtw_bf_support = true;
 unsigned int rtw_debug_mask;
 EXPORT_SYMBOL(rtw_debug_mask);
+bool rtw_edcca_enabled = true;
 
 module_param_named(lps_deep_mode, rtw_fw_lps_deep_mode, uint, 0644);
 module_param_named(support_bf, rtw_bf_support, bool, 0644);
diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h
index 279410a87141..9d3c0cded77e 100644
--- a/drivers/net/wireless/realtek/rtw88/main.h
+++ b/drivers/net/wireless/realtek/rtw88/main.h
@@ -38,6 +38,7 @@
 extern bool rtw_bf_support;
 extern unsigned int rtw_fw_lps_deep_mode;
 extern unsigned int rtw_debug_mask;
+extern bool rtw_edcca_enabled;
 extern const struct ieee80211_ops rtw_ops;
 extern struct rtw_chip_info rtw8822b_hw_spec;
 extern struct rtw_chip_info rtw8822c_hw_spec;
@@ -327,6 +328,8 @@ enum rtw_trx_desc_rate {
 	DESC_RATE_MAX,
 };
 
+#define RTW_REGION_INVALID 0xff
+
 enum rtw_regulatory_domains {
 	RTW_REGD_FCC		= 0,
 	RTW_REGD_MKK		= 1,
@@ -515,6 +518,11 @@ struct rtw_hw_reg {
 	u32 mask;
 };
 
+struct rtw_hw_reg_offset {
+	struct rtw_hw_reg hw_reg;
+	u8 offset;
+};
+
 struct rtw_backup_info {
 	u8 len;
 	u32 reg;
@@ -765,6 +773,7 @@ struct rtw_regulatory {
 	char alpha2[2];
 	u8 chplan;
 	u8 txpwr_regd;
+	enum nl80211_dfs_regions region;
 };
 
 struct rtw_chip_ops {
@@ -798,6 +807,8 @@ struct rtw_chip_ops {
 			      struct ieee80211_bss_conf *conf);
 	void (*cfg_csi_rate)(struct rtw_dev *rtwdev, u8 rssi, u8 cur_rate,
 			     u8 fixrate_en, u8 *new_rate);
+	void (*adaptivity_init)(struct rtw_dev *rtwdev);
+	void (*adaptivity)(struct rtw_dev *rtwdev);
 
 	/* for coex */
 	void (*coex_set_init)(struct rtw_dev *rtwdev);
@@ -1086,6 +1097,10 @@ struct rtw_chip_info {
 	u8 bfer_su_max_num;
 	u8 bfer_mu_max_num;
 
+	struct rtw_hw_reg_offset *edcca_th;
+	s8 l2h_th_ini_cs;
+	s8 l2h_th_ini_ad;
+
 	const char *wow_fw_name;
 	const struct wiphy_wowlan_support *wowlan_stub;
 	const u8 max_sched_scan_ssids;
@@ -1355,6 +1370,20 @@ struct rtw_pkt_count {
 DECLARE_EWMA(evm, 10, 4);
 DECLARE_EWMA(snr, 10, 4);
 
+#define EDCCA_TH_L2H_IDX 0
+#define EDCCA_TH_H2L_IDX 1
+#define EDCCA_TH_L2H_LB 48
+#define EDCCA_ADC_BACKOFF 12
+#define EDCCA_IGI_BASE 50
+#define EDCCA_IGI_L2H_DIFF 8
+#define EDCCA_L2H_H2L_DIFF 7
+#define EDCCA_L2H_H2L_DIFF_NORMAL 8
+
+enum rtw_edcca_mode {
+	RTW_EDCCA_NORMAL	= 0,
+	RTW_EDCCA_ADAPTIVITY	= 1,
+};
+
 struct rtw_dm_info {
 	u32 cck_fa_cnt;
 	u32 ofdm_fa_cnt;
@@ -1414,6 +1443,9 @@ struct rtw_dm_info {
 	struct rtw_pkt_count last_pkt_count;
 	struct ewma_evm ewma_evm[RTW_EVM_NUM];
 	struct ewma_snr ewma_snr[RTW_SNR_NUM];
+
+	s8 l2h_th_ini;
+	enum rtw_edcca_mode edcca_mode;
 };
 
 struct rtw_efuse {
diff --git a/drivers/net/wireless/realtek/rtw88/phy.c b/drivers/net/wireless/realtek/rtw88/phy.c
index 8793dd22188f..9e398c18f631 100644
--- a/drivers/net/wireless/realtek/rtw88/phy.c
+++ b/drivers/net/wireless/realtek/rtw88/phy.c
@@ -9,6 +9,7 @@
 #include "fw.h"
 #include "phy.h"
 #include "debug.h"
+#include "regd.h"
 
 struct phy_cfg_pair {
 	u32 addr;
@@ -115,6 +116,57 @@ static void rtw_phy_cck_pd_init(struct rtw_dev *rtwdev)
 	dm_info->cck_fa_avg = CCK_FA_AVG_RESET;
 }
 
+void rtw_phy_set_edcca_th(struct rtw_dev *rtwdev, u8 l2h, u8 h2l)
+{
+	struct rtw_hw_reg_offset *edcca_th = rtwdev->chip->edcca_th;
+
+	rtw_write32_mask(rtwdev,
+			 edcca_th[EDCCA_TH_L2H_IDX].hw_reg.addr,
+			 edcca_th[EDCCA_TH_L2H_IDX].hw_reg.mask,
+			 l2h + edcca_th[EDCCA_TH_L2H_IDX].offset);
+	rtw_write32_mask(rtwdev,
+			 edcca_th[EDCCA_TH_H2L_IDX].hw_reg.addr,
+			 edcca_th[EDCCA_TH_H2L_IDX].hw_reg.mask,
+			 h2l + edcca_th[EDCCA_TH_H2L_IDX].offset);
+}
+
+void rtw_phy_adaptivity_set_mode(struct rtw_dev *rtwdev)
+{
+	struct rtw_chip_info *chip = rtwdev->chip;
+	struct rtw_dm_info *dm_info = &rtwdev->dm_info;
+
+	/* turn off in debugfs for debug usage */
+	if (!rtw_edcca_enabled) {
+		dm_info->edcca_mode = RTW_EDCCA_NORMAL;
+		rtw_dbg(rtwdev, RTW_DBG_PHY, "EDCCA disabled, cannot be set\n");
+		return;
+	}
+
+	switch (rtwdev->regd.region) {
+	case NL80211_DFS_ETSI:
+		dm_info->edcca_mode = RTW_EDCCA_ADAPTIVITY;
+		dm_info->l2h_th_ini = chip->l2h_th_ini_ad;
+		break;
+	case NL80211_DFS_JP:
+		dm_info->edcca_mode = RTW_EDCCA_ADAPTIVITY;
+		dm_info->l2h_th_ini = chip->l2h_th_ini_cs;
+		break;
+	default:
+		dm_info->edcca_mode = RTW_EDCCA_NORMAL;
+		break;
+	}
+}
+
+static void rtw_phy_adaptivity_init(struct rtw_dev *rtwdev)
+{
+	struct rtw_chip_info *chip = rtwdev->chip;
+
+	rtw_regd_init_dfs_region(rtwdev, rtwdev->regd.region);
+	rtw_phy_adaptivity_set_mode(rtwdev);
+	if (chip->ops->adaptivity_init)
+		chip->ops->adaptivity_init(rtwdev);
+}
+
 void rtw_phy_init(struct rtw_dev *rtwdev)
 {
 	struct rtw_chip_info *chip = rtwdev->chip;
@@ -134,6 +186,7 @@ void rtw_phy_init(struct rtw_dev *rtwdev)
 	mask = chip->dig[0].mask;
 	dm_info->igi_history[0] = rtw_read32_mask(rtwdev, addr, mask);
 	rtw_phy_cck_pd_init(rtwdev);
+	rtw_phy_adaptivity_init(rtwdev);
 }
 
 void rtw_phy_dig_write(struct rtw_dev *rtwdev, u8 igi)
@@ -543,6 +596,12 @@ static void rtw_phy_pwr_track(struct rtw_dev *rtwdev)
 	rtwdev->chip->ops->pwr_track(rtwdev);
 }
 
+static void rtw_phy_adaptivity(struct rtw_dev *rtwdev)
+{
+	if (rtwdev->chip->ops->adaptivity)
+		rtwdev->chip->ops->adaptivity(rtwdev);
+}
+
 void rtw_phy_dynamic_mechanism(struct rtw_dev *rtwdev)
 {
 	/* for further calculation */
@@ -552,6 +611,7 @@ void rtw_phy_dynamic_mechanism(struct rtw_dev *rtwdev)
 	rtw_phy_ra_info_update(rtwdev);
 	rtw_phy_dpk_track(rtwdev);
 	rtw_phy_pwr_track(rtwdev);
+	rtw_phy_adaptivity(rtwdev);
 }
 
 #define FRAC_BITS 3
diff --git a/drivers/net/wireless/realtek/rtw88/phy.h b/drivers/net/wireless/realtek/rtw88/phy.h
index af916d8784cd..ca7af828b5a7 100644
--- a/drivers/net/wireless/realtek/rtw88/phy.h
+++ b/drivers/net/wireless/realtek/rtw88/phy.h
@@ -56,6 +56,8 @@ s8 rtw_phy_pwrtrack_get_pwridx(struct rtw_dev *rtwdev,
 bool rtw_phy_pwrtrack_need_iqk(struct rtw_dev *rtwdev);
 void rtw_phy_config_swing_table(struct rtw_dev *rtwdev,
 				struct rtw_swing_table *swing_table);
+void rtw_phy_set_edcca_th(struct rtw_dev *rtwdev, u8 l2h, u8 h2l);
+void rtw_phy_adaptivity_set_mode(struct rtw_dev *rtwdev);
 
 struct rtw_txpwr_lmt_cfg_pair {
 	u8 regd;
diff --git a/drivers/net/wireless/realtek/rtw88/reg.h b/drivers/net/wireless/realtek/rtw88/reg.h
index 9d94534c9674..b8c6601e5123 100644
--- a/drivers/net/wireless/realtek/rtw88/reg.h
+++ b/drivers/net/wireless/realtek/rtw88/reg.h
@@ -265,9 +265,11 @@
 #define BIT_SHIFT_SIFS_OFDM_TRX	24
 #define REG_SLOT		0x051B
 #define REG_TX_PTCL_CTRL	0x0520
+#define BIT_DIS_EDCCA		BIT(15)
 #define BIT_SIFS_BK_EN		BIT(12)
 #define REG_TXPAUSE		0x0522
 #define REG_RD_CTRL		0x0524
+#define BIT_EDCCA_MSK_CNTDOWN_EN BIT(11)
 #define BIT_DIS_TXOP_CFE	BIT(10)
 #define BIT_DIS_LSIG_CFE	BIT(9)
 #define BIT_DIS_STBC_CFE	BIT(8)
diff --git a/drivers/net/wireless/realtek/rtw88/regd.c b/drivers/net/wireless/realtek/rtw88/regd.c
index 4cc1234bfb9a..cec3e10b2a4e 100644
--- a/drivers/net/wireless/realtek/rtw88/regd.c
+++ b/drivers/net/wireless/realtek/rtw88/regd.c
@@ -347,6 +347,22 @@ static bool rtw_regd_is_ww(struct rtw_regulatory *reg)
 	return false;
 }
 
+void rtw_regd_init_dfs_region(struct rtw_dev *rtwdev,
+			      enum nl80211_dfs_regions curr_region)
+{
+	struct ieee80211_hw *hw = rtwdev->hw;
+	const struct ieee80211_regdomain *wiphy_regd = NULL;
+
+	if (curr_region != RTW_REGION_INVALID)
+		return;
+
+	rcu_read_lock();
+	wiphy_regd = rcu_dereference(hw->wiphy->regd);
+	if (wiphy_regd)
+		rtwdev->regd.region = wiphy_regd->dfs_region;
+	rcu_read_unlock();
+}
+
 static int rtw_regd_notifier_apply(struct rtw_dev *rtwdev,
 				   struct wiphy *wiphy,
 				   struct regulatory_request *request)
@@ -364,11 +380,13 @@ static int rtw_regd_notifier_apply(struct rtw_dev *rtwdev,
 		/* return to the efuse setting */
 		country_code = rtwdev->efuse.country_code;
 		rtwdev->regd = rtw_regd_find_reg_by_name(country_code);
+		rtw_regd_init_dfs_region(rtwdev, RTW_REGION_INVALID);
 		return 0;
 	}
 
 	rtwdev->regd = rtw_regd_find_reg_by_name(request->alpha2);
 	rtw_regd_apply_world_flags(wiphy, request->initiator);
+	rtwdev->regd.region = request->dfs_region;
 
 	return 0;
 }
@@ -404,6 +422,7 @@ int rtw_regd_init(struct rtw_dev *rtwdev,
 
 	rtwdev->regd = rtw_regd_find_reg_by_name(rtwdev->efuse.country_code);
 	rtw_regd_init_wiphy(rtwdev, wiphy, reg_notifier);
+	rtwdev->regd.region = RTW_REGION_INVALID;
 
 	return 0;
 }
@@ -428,5 +447,7 @@ void rtw_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request)
 		request->initiator, rtwdev->regd.chplan,
 		rtwdev->regd.txpwr_regd);
 
+	rtw_phy_adaptivity_set_mode(rtwdev);
+
 	rtw_phy_set_tx_power_level(rtwdev, hal->current_channel);
 }
diff --git a/drivers/net/wireless/realtek/rtw88/regd.h b/drivers/net/wireless/realtek/rtw88/regd.h
index 5d4578331788..b50d5fb9545a 100644
--- a/drivers/net/wireless/realtek/rtw88/regd.h
+++ b/drivers/net/wireless/realtek/rtw88/regd.h
@@ -68,4 +68,6 @@ int rtw_regd_init(struct rtw_dev *rtwdev,
 		  void (*reg_notifier)(struct wiphy *wiphy,
 				       struct regulatory_request *request));
 void rtw_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request);
+void rtw_regd_init_dfs_region(struct rtw_dev *rtwdev,
+			      enum nl80211_dfs_regions curr_region);
 #endif
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index 96aa332fb28d..8b73b7e0a9f6 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -1543,6 +1543,37 @@ static void rtw8822b_bf_config_bfee(struct rtw_dev *rtwdev, struct rtw_vif *vif,
 		rtw_warn(rtwdev, "wrong bfee role\n");
 }
 
+static void rtw8822b_adaptivity_init(struct rtw_dev *rtwdev)
+{
+	rtw_phy_set_edcca_th(rtwdev, 0x7f, 0x7f);
+	/* mac edcca state setting */
+	rtw_write32_mask(rtwdev, REG_TX_PTCL_CTRL, BIT_DIS_EDCCA, 0);
+	rtw_write32_mask(rtwdev, REG_RD_CTRL, BIT_EDCCA_MSK_CNTDOWN_EN, 1);
+
+	rtw_write32_mask(rtwdev, REG_EDCCA_SOURCE, BIT_SOURCE_OPTION, 1);
+	rtw_write32_mask(rtwdev, REG_EDCCA_POW_MA, BIT_MA_LEVEL, 0);
+	/* edcca decistion opt */
+	rtw_write32_mask(rtwdev, REG_EDCCA_DECISION, BIT_EDCCA_OPTION, 1);
+}
+
+static void rtw8822b_adaptivity(struct rtw_dev *rtwdev)
+{
+	struct rtw_dm_info *dm_info = &rtwdev->dm_info;
+	s8 l2h, h2l;
+	u8 igi;
+
+	igi = dm_info->igi_history[0];
+	if (dm_info->edcca_mode == RTW_EDCCA_NORMAL) {
+		l2h = max_t(s8, igi + EDCCA_IGI_L2H_DIFF, EDCCA_TH_L2H_LB);
+		h2l = l2h - EDCCA_L2H_H2L_DIFF_NORMAL;
+	} else {
+		l2h = min_t(s8, igi, dm_info->l2h_th_ini);
+		h2l = l2h - EDCCA_L2H_H2L_DIFF;
+	}
+
+	rtw_phy_set_edcca_th(rtwdev, l2h, h2l);
+}
+
 static const struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8822b[] = {
 	{0x0086,
 	 RTW_PWR_CUT_ALL_MSK,
@@ -2094,6 +2125,8 @@ static struct rtw_chip_ops rtw8822b_ops = {
 	.config_bfee		= rtw8822b_bf_config_bfee,
 	.set_gid_table		= rtw_bf_set_gid_table,
 	.cfg_csi_rate		= rtw_bf_cfg_csi_rate,
+	.adaptivity_init	= rtw8822b_adaptivity_init,
+	.adaptivity		= rtw8822b_adaptivity,
 
 	.coex_set_init		= rtw8822b_coex_cfg_init,
 	.coex_set_ant_switch	= rtw8822b_coex_cfg_ant_switch,
@@ -2371,6 +2404,11 @@ static const struct rtw_pwr_track_tbl rtw8822b_rtw_pwr_track_tbl = {
 	.pwrtrk_2g_ccka_p = rtw8822b_pwrtrk_2g_cck_a_p,
 };
 
+static struct rtw_hw_reg_offset rtw8822b_edcca_th[] = {
+	[EDCCA_TH_L2H_IDX] = {{.addr = 0x8a4, .mask = MASKBYTE0}, .offset = 0},
+	[EDCCA_TH_H2L_IDX] = {{.addr = 0x8a4, .mask = MASKBYTE1}, .offset = 0},
+};
+
 struct rtw_chip_info rtw8822b_hw_spec = {
 	.ops = &rtw8822b_ops,
 	.id = RTW_CHIP_TYPE_8822B,
@@ -2413,6 +2451,9 @@ struct rtw_chip_info rtw8822b_hw_spec = {
 	.iqk_threshold = 8,
 	.bfer_su_max_num = 2,
 	.bfer_mu_max_num = 1,
+	.edcca_th = rtw8822b_edcca_th,
+	.l2h_th_ini_cs = 10 + EDCCA_IGI_BASE,
+	.l2h_th_ini_ad = -14 + EDCCA_IGI_BASE,
 
 	.coex_para_ver = 0x19062706,
 	.bt_desired_ver = 0x6,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.h b/drivers/net/wireless/realtek/rtw88/rtw8822b.h
index 6211f4b547b9..f2518356a464 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.h
@@ -152,11 +152,17 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data)
 #define REG_L1PKWT	0x840
 #define REG_MRC		0x850
 #define REG_CLKTRK	0x860
+#define REG_EDCCA_POW_MA	0x8a0
+#define BIT_MA_LEVEL	GENMASK(1, 0)
 #define REG_ADCCLK	0x8ac
 #define REG_ADC160	0x8c4
 #define REG_ADC40	0x8c8
+#define REG_EDCCA_DECISION	0x8dc
+#define BIT_EDCCA_OPTION	BIT(5)
 #define REG_CDDTXP	0x93c
 #define REG_TXPSEL1	0x940
+#define REG_EDCCA_SOURCE	0x944
+#define BIT_SOURCE_OPTION	GENMASK(29, 28)
 #define REG_ACBB0	0x948
 #define REG_ACBBRXFIR	0x94c
 #define REG_ACGG2TBL	0x958
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index d2469f91976b..fe4033b2ec6b 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -3414,6 +3414,37 @@ static void rtw8822c_pwr_track(struct rtw_dev *rtwdev)
 	dm_info->pwr_trk_triggered = false;
 }
 
+static void rtw8822c_adaptivity_init(struct rtw_dev *rtwdev)
+{
+	rtw_phy_set_edcca_th(rtwdev, 0x7f, 0x7f);
+	/* mac edcca state setting */
+	rtw_write32_mask(rtwdev, REG_TX_PTCL_CTRL, BIT_DIS_EDCCA, 0);
+	rtw_write32_mask(rtwdev, REG_RD_CTRL, BIT_EDCCA_MSK_CNTDOWN_EN, 1);
+	/* edcca decistion opt */
+	rtw_write32_mask(rtwdev, REG_EDCCA_DECISION, BIT_EDCCA_OPTION, 0);
+}
+
+static void rtw8822c_adaptivity(struct rtw_dev *rtwdev)
+{
+	struct rtw_dm_info *dm_info = &rtwdev->dm_info;
+	s8 l2h, h2l;
+	u8 igi;
+
+	igi = dm_info->igi_history[0];
+	if (dm_info->edcca_mode == RTW_EDCCA_NORMAL) {
+		l2h = max_t(s8, igi + EDCCA_IGI_L2H_DIFF, EDCCA_TH_L2H_LB);
+		h2l = l2h - EDCCA_L2H_H2L_DIFF_NORMAL;
+	} else {
+		if (igi < dm_info->l2h_th_ini - EDCCA_ADC_BACKOFF)
+			l2h = igi + EDCCA_ADC_BACKOFF;
+		else
+			l2h = dm_info->l2h_th_ini;
+		h2l = l2h - EDCCA_L2H_H2L_DIFF;
+	}
+
+	rtw_phy_set_edcca_th(rtwdev, l2h, h2l);
+}
+
 static const struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8822c[] = {
 	{0x0086,
 	 RTW_PWR_CUT_ALL_MSK,
@@ -3803,6 +3834,8 @@ static struct rtw_chip_ops rtw8822c_ops = {
 	.config_bfee		= rtw8822c_bf_config_bfee,
 	.set_gid_table		= rtw_bf_set_gid_table,
 	.cfg_csi_rate		= rtw_bf_cfg_csi_rate,
+	.adaptivity_init	= rtw8822c_adaptivity_init,
+	.adaptivity		= rtw8822c_adaptivity,
 
 	.coex_set_init		= rtw8822c_coex_cfg_init,
 	.coex_set_ant_switch	= NULL,
@@ -4080,6 +4113,15 @@ static const struct rtw_pwr_track_tbl rtw8822c_rtw_pwr_track_tbl = {
 	.pwrtrk_2g_ccka_p = rtw8822c_pwrtrk_2g_cck_a_p,
 };
 
+static struct rtw_hw_reg_offset rtw8822c_edcca_th[] = {
+	[EDCCA_TH_L2H_IDX] = {
+		{.addr = 0x84c, .mask = MASKBYTE2}, .offset = 0x80
+	},
+	[EDCCA_TH_H2L_IDX] = {
+		{.addr = 0x84c, .mask = MASKBYTE3}, .offset = 0x80
+	},
+};
+
 #ifdef CONFIG_PM
 static const struct wiphy_wowlan_support rtw_wowlan_stub_8822c = {
 	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_GTK_REKEY_FAILURE |
@@ -4137,6 +4179,9 @@ struct rtw_chip_info rtw8822c_hw_spec = {
 	.iqk_threshold = 8,
 	.bfer_su_max_num = 2,
 	.bfer_mu_max_num = 1,
+	.edcca_th = rtw8822c_edcca_th,
+	.l2h_th_ini_cs = 60,
+	.l2h_th_ini_ad = 45,
 
 #ifdef CONFIG_PM
 	.wow_fw_name = "rtw88/rtw8822c_wow_fw.bin",
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.h b/drivers/net/wireless/realtek/rtw88/rtw8822c.h
index dfd8662a0c0e..953fb19fad7e 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.h
@@ -171,6 +171,8 @@ const struct rtw_table name ## _tbl = {			\
 #define REG_DFIRBW	0x810
 #define REG_ANTMAP0	0x820
 #define REG_ANTMAP	0x824
+#define REG_EDCCA_DECISION	0x844
+#define BIT_EDCCA_OPTION	GENMASK(30, 29)
 #define REG_DYMPRITH	0x86c
 #define REG_DYMENTH0	0x870
 #define REG_DYMENTH	0x874
