diff mbox series

[2/3] wifi: rtw89: 8851b: rfk: add DPK

Message ID 20230513054425.9689-3-pkshih@realtek.com
State New
Headers show
Series wifi: rtw89: 8851b: rfk: add more RF calibrations | expand

Commit Message

Ping-Ke Shih May 13, 2023, 5:44 a.m. UTC
DPK is short for digital pre-distortion calibration. It can adjusts digital
waveform according to PA linear characteristics dynamically to enhance
TX EVM.

Do this calibration when we are going to run on AP channel. To prevent
power offset out of boundary, it monitors thermal and set proper boundary
to register.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/reg.h      |   13 +
 .../net/wireless/realtek/rtw89/rtw8851b_rfk.c | 1048 +++++++++++++++++
 .../net/wireless/realtek/rtw89/rtw8851b_rfk.h |    3 +
 3 files changed, 1064 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw89/reg.h b/drivers/net/wireless/realtek/rtw89/reg.h
index 34f3c86abdad5..6eb7f03815db8 100644
--- a/drivers/net/wireless/realtek/rtw89/reg.h
+++ b/drivers/net/wireless/realtek/rtw89/reg.h
@@ -3305,6 +3305,10 @@ 
 #define B_AX_TXAGC_BT_EN BIT(1)
 #define B_AX_TXAGC_BT_MASK GENMASK(11, 3)
 
+#define R_AX_PWR_SWING_OTHER_CTRL0 0xD230
+#define R_AX_PWR_SWING_OTHER_CTRL0_C1 0xF230
+#define B_AX_CFIR_BY_RATE_OFF_MASK GENMASK(17, 0)
+
 #define R_AX_PWR_UL_CTRL0 0xD240
 #define R_AX_PWR_UL_CTRL2 0xD248
 #define B_AX_PWR_UL_CFO_MASK GENMASK(2, 0)
@@ -3735,6 +3739,7 @@ 
 #define RR_RXA_DPK GENMASK(9, 8)
 #define RR_RXA_LNA 0x8b
 #define RR_RXA2 0x8c
+#define RR_RAA2_SATT GENMASK(15, 13)
 #define RR_RAA2_SWATT GENMASK(15, 9)
 #define RR_RXA2_C1 GENMASK(12, 10)
 #define RR_RXA2_C2 GENMASK(9, 3)
@@ -4052,6 +4057,7 @@ 
 #define R_TXAGC_BB 0x1C60
 #define B_TXAGC_BB_OFT GENMASK(31, 16)
 #define B_TXAGC_BB GENMASK(31, 24)
+#define B_TXAGC_RF GENMASK(5, 0)
 #define R_S0_ADDCK 0x1E00
 #define B_S0_ADDCK_I GENMASK(9, 0)
 #define B_S0_ADDCK_Q GENMASK(19, 10)
@@ -4612,6 +4618,7 @@ 
 #define R_MDPK_SYNC 0x8070
 #define B_MDPK_SYNC_SEL BIT(31)
 #define B_MDPK_SYNC_MAN GENMASK(31, 28)
+#define B_MDPK_SYNC_DMAN GENMASK(30, 28)
 #define R_MDPK_RX_DCK 0x8074
 #define B_MDPK_RX_DCK_EN BIT(31)
 #define R_KIP_MOD 0x8078
@@ -4620,6 +4627,7 @@ 
 #define R_KIP_SYSCFG 0x8088
 #define R_KIP_CLK 0x808C
 #define R_DPK_IDL 0x809C
+#define B_DPK_IDL_SEL GENMASK(10, 9)
 #define B_DPK_IDL BIT(8)
 #define R_LDL_NORM 0x80A0
 #define B_LDL_NORM_MA BIT(16)
@@ -4638,6 +4646,10 @@ 
 #define B_KIP_RPT1_SEL GENMASK(21, 16)
 #define B_KIP_RPT1_SEL_V1 GENMASK(19, 16)
 #define R_SRAM_IQRX 0x80D8
+#define R_IDL_MPA 0x80DC
+#define B_IDL_DN BIT(31)
+#define B_IDL_MD530 BIT(1)
+#define B_IDL_MD500 BIT(0)
 #define R_GAPK 0x80E0
 #define B_GAPK_ADR BIT(0)
 #define R_SRAM_IQRX2 0x80E8
@@ -4725,6 +4737,7 @@ 
 #define B_DPK_GL_A0 GENMASK(31, 28)
 #define B_DPK_GL_A1 GENMASK(17, 0)
 #define R_RPT_PER 0x81FC
+#define B_RPT_PER_KSET GENMASK(31, 29)
 #define B_RPT_PER_TSSI GENMASK(28, 16)
 #define B_RPT_PER_OF GENMASK(15, 8)
 #define B_RPT_PER_TH GENMASK(5, 0)
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.c b/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.c
index b12f985b01259..ab430d7e782f4 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.c
@@ -12,12 +12,47 @@ 
 #include "rtw8851b_rfk_table.h"
 #include "rtw8851b_table.h"
 
+#define DPK_VER_8851B 0x5
+#define DPK_KIP_REG_NUM_8851B 7
+#define DPK_RF_REG_NUM_8851B 4
+#define DPK_KSET_NUM 4
 #define RTW8851B_RXK_GROUP_NR 4
 #define RTW8851B_TXK_GROUP_NR 1
 #define RTW8851B_IQK_VER 0x2a
 #define RTW8851B_IQK_SS 1
 #define RTW8851B_LOK_GRAM 10
 
+enum dpk_id {
+	LBK_RXIQK	= 0x06,
+	SYNC		= 0x10,
+	MDPK_IDL	= 0x11,
+	MDPK_MPA	= 0x12,
+	GAIN_LOSS	= 0x13,
+	GAIN_CAL	= 0x14,
+	DPK_RXAGC	= 0x15,
+	KIP_PRESET	= 0x16,
+	KIP_RESTORE	= 0x17,
+	DPK_TXAGC	= 0x19,
+	D_KIP_PRESET	= 0x28,
+	D_TXAGC		= 0x29,
+	D_RXAGC		= 0x2a,
+	D_SYNC		= 0x2b,
+	D_GAIN_LOSS	= 0x2c,
+	D_MDPK_IDL	= 0x2d,
+	D_MDPK_LDL	= 0x2e,
+	D_GAIN_NORM	= 0x2f,
+	D_KIP_THERMAL	= 0x30,
+	D_KIP_RESTORE	= 0x31
+};
+
+enum dpk_agc_step {
+	DPK_AGC_STEP_SYNC_DGAIN,
+	DPK_AGC_STEP_GAIN_LOSS_IDX,
+	DPK_AGC_STEP_GL_GT_CRITERION,
+	DPK_AGC_STEP_GL_LT_CRITERION,
+	DPK_AGC_STEP_SET_TX_GAIN,
+};
+
 enum rtw8851b_iqk_type {
 	ID_TXAGC = 0x0,
 	ID_FLOK_COARSE = 0x1,
@@ -68,6 +103,10 @@  static const u32 rtw8851b_backup_rf_regs[] = {
 #define BACKUP_BB_REGS_NR ARRAY_SIZE(rtw8851b_backup_bb_regs)
 #define BACKUP_RF_REGS_NR ARRAY_SIZE(rtw8851b_backup_rf_regs)
 
+static const u32 dpk_kip_reg[DPK_KIP_REG_NUM_8851B] = {
+	0x813c, 0x8124, 0xc0ec, 0xc0e8, 0xc0c4, 0xc0d4, 0xc0d8};
+static const u32 dpk_rf_reg[DPK_RF_REG_NUM_8851B] = {0xde, 0x8f, 0x5, 0x10005};
+
 static u8 _kpath(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx)
 {
 	return RF_A;
@@ -81,6 +120,24 @@  static void _adc_fifo_rst(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx,
 	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, B_ADC_FIFO_RXK, 0x1111);
 }
 
+static void _rfk_rf_direct_cntrl(struct rtw89_dev *rtwdev,
+				 enum rtw89_rf_path path, bool is_bybb)
+{
+	if (is_bybb)
+		rtw89_write_rf(rtwdev, path, RR_RSV1, RR_RSV1_RST, 0x1);
+	else
+		rtw89_write_rf(rtwdev, path, RR_RSV1, RR_RSV1_RST, 0x0);
+}
+
+static void _rfk_drf_direct_cntrl(struct rtw89_dev *rtwdev,
+				  enum rtw89_rf_path path, bool is_bybb)
+{
+	if (is_bybb)
+		rtw89_write_rf(rtwdev, path, RR_BBDC, RR_BBDC_SEL, 0x1);
+	else
+		rtw89_write_rf(rtwdev, path, RR_BBDC, RR_BBDC_SEL, 0x0);
+}
+
 static void _wait_rx_mode(struct rtw89_dev *rtwdev, u8 kpath)
 {
 	u32 rf_mode;
@@ -1546,6 +1603,964 @@  static void _iqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx, bool forc
 	_doiqk(rtwdev, force, phy_idx, RF_PATH_A);
 }
 
+static void _dpk_bkup_kip(struct rtw89_dev *rtwdev, const u32 *reg,
+			  u32 reg_bkup[][DPK_KIP_REG_NUM_8851B], u8 path)
+{
+	u8 i;
+
+	for (i = 0; i < DPK_KIP_REG_NUM_8851B; i++) {
+		reg_bkup[path][i] =
+			rtw89_phy_read32_mask(rtwdev, reg[i] + (path << 8), MASKDWORD);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] Backup 0x%x = %x\n",
+			    reg[i] + (path << 8), reg_bkup[path][i]);
+	}
+}
+
+static void _dpk_bkup_rf(struct rtw89_dev *rtwdev, const u32 *rf_reg,
+			 u32 rf_bkup[][DPK_RF_REG_NUM_8851B], u8 path)
+{
+	u8 i;
+
+	for (i = 0; i < DPK_RF_REG_NUM_8851B; i++) {
+		rf_bkup[path][i] = rtw89_read_rf(rtwdev, path, rf_reg[i], RFREG_MASK);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] Backup RF S%d 0x%x = %x\n",
+			    path, rf_reg[i], rf_bkup[path][i]);
+	}
+}
+
+static void _dpk_reload_kip(struct rtw89_dev *rtwdev, const u32 *reg,
+			    u32 reg_bkup[][DPK_KIP_REG_NUM_8851B], u8 path)
+{
+	u8 i;
+
+	for (i = 0; i < DPK_KIP_REG_NUM_8851B; i++) {
+		rtw89_phy_write32_mask(rtwdev, reg[i] + (path << 8), MASKDWORD,
+				       reg_bkup[path][i]);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK,
+			    "[DPK] Reload 0x%x = %x\n",
+			    reg[i] + (path << 8), reg_bkup[path][i]);
+	}
+}
+
+static void _dpk_reload_rf(struct rtw89_dev *rtwdev, const u32 *rf_reg,
+			   u32 rf_bkup[][DPK_RF_REG_NUM_8851B], u8 path)
+{
+	u8 i;
+
+	for (i = 0; i < DPK_RF_REG_NUM_8851B; i++) {
+		rtw89_write_rf(rtwdev, path, rf_reg[i], RFREG_MASK, rf_bkup[path][i]);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK,
+			    "[DPK] Reload RF S%d 0x%x = %x\n", path,
+			    rf_reg[i], rf_bkup[path][i]);
+	}
+}
+
+static void _dpk_one_shot(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			  enum rtw89_rf_path path, enum dpk_id id)
+{
+	u16 dpk_cmd;
+	u32 val;
+	int ret;
+
+	dpk_cmd = ((id << 8) | (0x19 + path * 0x12));
+	rtw89_phy_write32_mask(rtwdev, R_NCTL_CFG, MASKDWORD, dpk_cmd);
+
+	ret = read_poll_timeout_atomic(rtw89_phy_read32_mask, val, val == 0x55,
+				       10, 20000, false,
+				       rtwdev, 0xbff8, MASKBYTE0);
+	if (ret)
+		rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] one-shot 1 timeout\n");
+
+	udelay(1);
+
+	ret = read_poll_timeout_atomic(rtw89_phy_read32_mask, val, val == 0x8000,
+				       1, 2000, false,
+				       rtwdev, R_RPT_COM, MASKLWORD);
+	if (ret)
+		rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] one-shot 2 timeout\n");
+
+	rtw89_phy_write32_mask(rtwdev, R_NCTL_N1, MASKBYTE0, 0x0);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK,
+		    "[DPK] one-shot for %s = 0x%04x\n",
+		    id == 0x28 ? "KIP_PRESET" :
+		    id == 0x29 ? "DPK_TXAGC" :
+		    id == 0x2a ? "DPK_RXAGC" :
+		    id == 0x2b ? "SYNC" :
+		    id == 0x2c ? "GAIN_LOSS" :
+		    id == 0x2d ? "MDPK_IDL" :
+		    id == 0x2f ? "DPK_GAIN_NORM" :
+		    id == 0x31 ? "KIP_RESOTRE" :
+		    id == 0x6 ? "LBK_RXIQK" : "Unknown id",
+		    dpk_cmd);
+}
+
+static void _dpk_onoff(struct rtw89_dev *rtwdev, enum rtw89_rf_path path,
+		       bool off)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u8 kidx = dpk->cur_idx[path];
+	u8 off_reverse = off ? 0 : 1;
+	u8 val;
+
+	val = dpk->is_dpk_enable * off_reverse * dpk->bp[path][kidx].path_ok;
+
+	rtw89_phy_write32_mask(rtwdev, R_DPD_CH0A + (path << 8) + (kidx << 2),
+			       0xf0000000, val);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d[%d] DPK %s !!!\n", path,
+		    kidx, val == 0 ? "disable" : "enable");
+}
+
+static void _dpk_init(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+
+	u8 kidx = dpk->cur_idx[path];
+
+	dpk->bp[path][kidx].path_ok = 0;
+}
+
+static void _dpk_information(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			     enum rtw89_rf_path path)
+{
+	const struct rtw89_chan *chan = rtw89_chan_get(rtwdev, RTW89_SUB_ENTITY_0);
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+
+	u8 kidx = dpk->cur_idx[path];
+
+	dpk->bp[path][kidx].band = chan->band_type;
+	dpk->bp[path][kidx].ch = chan->band_width;
+	dpk->bp[path][kidx].bw = chan->channel;
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK,
+		    "[DPK] S%d[%d] (PHY%d): TSSI %s/ DBCC %s/ %s/ CH%d/ %s\n",
+		    path, dpk->cur_idx[path], phy,
+		    rtwdev->is_tssi_mode[path] ? "on" : "off",
+		    rtwdev->dbcc_en ? "on" : "off",
+		    dpk->bp[path][kidx].band == 0 ? "2G" :
+		    dpk->bp[path][kidx].band == 1 ? "5G" : "6G",
+		    dpk->bp[path][kidx].ch,
+		    dpk->bp[path][kidx].bw == 0 ? "20M" :
+		    dpk->bp[path][kidx].bw == 1 ? "40M" :
+		    dpk->bp[path][kidx].bw == 2 ? "80M" : "160M");
+}
+
+static void _dpk_rxagc_onoff(struct rtw89_dev *rtwdev, enum rtw89_rf_path path,
+			     bool turn_on)
+{
+	if (path == RF_PATH_A)
+		rtw89_phy_write32_mask(rtwdev, R_P0_AGC_CTL, B_P0_AGC_EN, turn_on);
+	else
+		rtw89_phy_write32_mask(rtwdev, R_P1_AGC_CTL, B_P1_AGC_EN, turn_on);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d RXAGC is %s\n", path,
+		    turn_on ? "turn_on" : "turn_off");
+}
+
+static void _dpk_bb_afe_setting(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
+{
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(16 + path), 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(20 + path), 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(24 + path), 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(28 + path), 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_UPD_CLK + (path << 13), MASKDWORD, 0xd801dffd);
+
+	rtw89_rfk_parser(rtwdev, &rtw8851b_iqk_bb_afe_defs_tbl);
+
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(20 + path), 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(28 + path), 0x1);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d BB/AFE setting\n", path);
+}
+
+static void _dpk_bb_afe_restore(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
+{
+	rtw89_phy_write32_mask(rtwdev, R_P0_NRBW + (path << 13), B_P0_NRBW_DBG, 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(16 + path), 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(20 + path), 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(24 + path), 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(28 + path), 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_UPD_CLK + (path << 13), MASKDWORD, 0x00000000);
+	rtw89_phy_write32_mask(rtwdev, R_P0_RXCK + (path << 13), B_P0_TXCK_ALL, 0x00);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(16 + path), 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_ADC_FIFO, BIT(24 + path), 0x0);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d BB/AFE restore\n", path);
+}
+
+static void _dpk_tssi_pause(struct rtw89_dev *rtwdev, enum rtw89_rf_path path,
+			    bool is_pause)
+{
+	rtw89_phy_write32_mask(rtwdev, R_P0_TSSI_TRK + (path << 13),
+			       B_P0_TSSI_TRK_EN, is_pause);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d TSSI %s\n", path,
+		    is_pause ? "pause" : "resume");
+}
+
+static void _dpk_tpg_sel(struct rtw89_dev *rtwdev, enum rtw89_rf_path path, u8 kidx)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+
+	if (dpk->bp[path][kidx].bw == RTW89_CHANNEL_WIDTH_80) {
+		rtw89_phy_write32_mask(rtwdev, R_TPG_MOD, B_TPG_MOD_F, 0x0);
+		rtw89_phy_write32_mask(rtwdev, R_TPG_SEL, MASKDWORD, 0xffe0fa00);
+	} else if (dpk->bp[path][kidx].bw == RTW89_CHANNEL_WIDTH_40) {
+		rtw89_phy_write32_mask(rtwdev, R_TPG_MOD, B_TPG_MOD_F, 0x2);
+		rtw89_phy_write32_mask(rtwdev, R_TPG_SEL, MASKDWORD, 0xff4009e0);
+	} else {
+		rtw89_phy_write32_mask(rtwdev, R_TPG_MOD, B_TPG_MOD_F, 0x1);
+		rtw89_phy_write32_mask(rtwdev, R_TPG_SEL, MASKDWORD, 0xf9f007d0);
+	}
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] TPG Select for %s\n",
+		    dpk->bp[path][kidx].bw == RTW89_CHANNEL_WIDTH_80 ? "80M" :
+		    dpk->bp[path][kidx].bw == RTW89_CHANNEL_WIDTH_40 ? "40M" : "20M");
+}
+
+static void _dpk_txpwr_bb_force(struct rtw89_dev *rtwdev,
+				enum rtw89_rf_path path, bool force)
+{
+	rtw89_phy_write32_mask(rtwdev, R_TXPWRB + (path << 13), B_TXPWRB_ON, force);
+	rtw89_phy_write32_mask(rtwdev, R_TXPWRB_H + (path << 13), B_TXPWRB_RDY, force);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d txpwr_bb_force %s\n",
+		    path, force ? "on" : "off");
+}
+
+static void _dpk_kip_pwr_clk_onoff(struct rtw89_dev *rtwdev, bool turn_on)
+{
+	if (turn_on) {
+		rtw89_phy_write32_mask(rtwdev, R_NCTL_RPT, MASKDWORD, 0x00000080);
+		rtw89_phy_write32_mask(rtwdev, R_KIP_SYSCFG, MASKDWORD, 0x807f030a);
+	} else {
+		rtw89_phy_write32_mask(rtwdev, R_NCTL_RPT, MASKDWORD, 0x00000000);
+		rtw89_phy_write32_mask(rtwdev, R_KIP_SYSCFG, MASKDWORD, 0x80000000);
+		rtw89_phy_write32_mask(rtwdev, R_DPK_WR, BIT(18), 0x1);
+	}
+}
+
+static void _dpk_kip_control_rfc(struct rtw89_dev *rtwdev,
+				 enum rtw89_rf_path path, bool ctrl_by_kip)
+{
+	rtw89_phy_write32_mask(rtwdev, R_UPD_CLK + (path << 13),
+			       B_IQK_RFC_ON, ctrl_by_kip);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] RFC is controlled by %s\n",
+		    ctrl_by_kip ? "KIP" : "BB");
+}
+
+static void _dpk_kip_preset(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			    enum rtw89_rf_path path, u8 kidx)
+{
+	rtw89_phy_write32_mask(rtwdev, R_KIP_MOD, B_KIP_MOD,
+			       rtw89_read_rf(rtwdev, path, RR_MOD, RFREG_MASK));
+	rtw89_phy_write32_mask(rtwdev, R_DPD_CH0A + (path << 8) + (kidx << 2),
+			       B_DPD_SEL, 0x01);
+
+	_dpk_kip_control_rfc(rtwdev, path, true);
+	_dpk_one_shot(rtwdev, phy, path, D_KIP_PRESET);
+}
+
+static void _dpk_kip_restore(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			     enum rtw89_rf_path path)
+{
+	_dpk_one_shot(rtwdev, phy, path, D_KIP_RESTORE);
+	_dpk_kip_control_rfc(rtwdev, path, false);
+	_dpk_txpwr_bb_force(rtwdev, path, false);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d restore KIP\n", path);
+}
+
+static void _dpk_kset_query(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT + (path << 8), B_KIP_RPT_SEL, 0x10);
+
+	dpk->cur_k_set =
+		rtw89_phy_read32_mask(rtwdev, R_RPT_PER + (path << 8), B_RPT_PER_KSET) - 1;
+}
+
+static void _dpk_para_query(struct rtw89_dev *rtwdev, enum rtw89_rf_path path, u8 kidx)
+{
+	static const u32 reg[RTW89_DPK_BKUP_NUM][DPK_KSET_NUM] = {
+		{0x8190, 0x8194, 0x8198, 0x81a4},
+		{0x81a8, 0x81c4, 0x81c8, 0x81e8}
+	};
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u8 cur_k_set = dpk->cur_k_set;
+	u32 para;
+
+	if (cur_k_set >= DPK_KSET_NUM) {
+		rtw89_warn(rtwdev, "DPK cur_k_set = %d\n", cur_k_set);
+		cur_k_set = 2;
+	}
+
+	para = rtw89_phy_read32_mask(rtwdev, reg[kidx][cur_k_set] + (path << 8),
+				     MASKDWORD);
+
+	dpk->bp[path][kidx].txagc_dpk = (para >> 10) & 0x3f;
+	dpk->bp[path][kidx].ther_dpk = (para >> 26) & 0x3f;
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK,
+		    "[DPK] thermal/ txagc_RF (K%d) = 0x%x/ 0x%x\n",
+		    dpk->cur_k_set, dpk->bp[path][kidx].ther_dpk,
+		    dpk->bp[path][kidx].txagc_dpk);
+}
+
+static bool _dpk_sync_check(struct rtw89_dev *rtwdev, enum rtw89_rf_path path, u8 kidx)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u8 corr_val, corr_idx, rxbb;
+	u16 dc_i, dc_q;
+	u8 rxbb_ov;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x0);
+
+	corr_idx = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_CORI);
+	corr_val = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_CORV);
+	dpk->corr_idx[path][kidx] = corr_idx;
+	dpk->corr_val[path][kidx] = corr_val;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x9);
+
+	dc_i = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_DCI);
+	dc_q = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_DCQ);
+
+	dc_i = abs(sign_extend32(dc_i, 11));
+	dc_q = abs(sign_extend32(dc_q, 11));
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK,
+		    "[DPK] S%d Corr_idx/ Corr_val /DC I/Q, = %d / %d / %d / %d\n",
+		    path, corr_idx, corr_val, dc_i, dc_q);
+
+	dpk->dc_i[path][kidx] = dc_i;
+	dpk->dc_q[path][kidx] = dc_q;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x8);
+	rxbb = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_RXBB);
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x31);
+	rxbb_ov = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_RXOV);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK,
+		    "[DPK] S%d RXBB/ RXAGC_done /RXBB_ovlmt = %d / %d / %d\n",
+		    path, rxbb,
+		    rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_DONE),
+		    rxbb_ov);
+
+	if (dc_i > 200 || dc_q > 200 || corr_val < 170)
+		return true;
+	else
+		return false;
+}
+
+static void _dpk_kip_set_txagc(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			       enum rtw89_rf_path path, u8 dbm,
+			       bool set_from_bb)
+{
+	if (set_from_bb) {
+		dbm = clamp_t(u8, dbm, 7, 24);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK,
+			    "[DPK] set S%d txagc to %ddBm\n", path, dbm);
+		rtw89_phy_write32_mask(rtwdev, R_TXPWRB + (path << 13),
+				       B_TXPWRB_VAL, dbm << 2);
+	}
+
+	_dpk_one_shot(rtwdev, phy, path, D_TXAGC);
+	_dpk_kset_query(rtwdev, path);
+}
+
+static bool _dpk_kip_set_rxagc(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			       enum rtw89_rf_path path, u8 kidx)
+{
+	_dpk_kip_control_rfc(rtwdev, path, false);
+	rtw89_phy_write32_mask(rtwdev, R_KIP_MOD, B_KIP_MOD,
+			       rtw89_read_rf(rtwdev, path, RR_MOD, RFREG_MASK));
+	_dpk_kip_control_rfc(rtwdev, path, true);
+
+	_dpk_one_shot(rtwdev, phy, path, D_RXAGC);
+	return _dpk_sync_check(rtwdev, path, kidx);
+}
+
+static void _dpk_lbk_rxiqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			   enum rtw89_rf_path path)
+{
+	u32 rf_11, reg_81cc;
+	u8 cur_rxbb;
+
+	rtw89_phy_write32_mask(rtwdev, R_DPD_V1 + (path << 8), B_DPD_LBK, 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_MDPK_RX_DCK, B_MDPK_RX_DCK_EN, 0x1);
+
+	_dpk_kip_control_rfc(rtwdev, path, false);
+
+	cur_rxbb = rtw89_read_rf(rtwdev, path, RR_MOD, RR_MOD_RXB);
+	rf_11 = rtw89_read_rf(rtwdev, path, RR_TXIG, RFREG_MASK);
+	reg_81cc = rtw89_phy_read32_mask(rtwdev, R_KIP_IQP + (path << 8),
+					 B_KIP_IQP_SW);
+
+	rtw89_write_rf(rtwdev, path, RR_TXIG, RR_TXIG_GR0, 0x0);
+	rtw89_write_rf(rtwdev, path, RR_TXIG, RR_TXIG_GR1, 0x3);
+	rtw89_write_rf(rtwdev, path, RR_TXIG, RR_TXIG_TG, 0xd);
+	rtw89_write_rf(rtwdev, path, RR_MOD, RR_MOD_RXB, 0x1f);
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_IQP + (path << 8), B_KIP_IQP_IQSW, 0x12);
+	rtw89_phy_write32_mask(rtwdev, R_KIP_IQP + (path << 8), B_KIP_IQP_SW, 0x3);
+
+	_dpk_kip_control_rfc(rtwdev, path, true);
+
+	rtw89_phy_write32_mask(rtwdev, R_IQK_DIF4, MASKDWORD, 0x00250025);
+
+	_dpk_one_shot(rtwdev, phy, path, LBK_RXIQK);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d LBK RXIQC = 0x%x\n", path,
+		    rtw89_phy_read32_mask(rtwdev, R_RXIQC + (path << 8), MASKDWORD));
+
+	_dpk_kip_control_rfc(rtwdev, path, false);
+
+	rtw89_write_rf(rtwdev, path, RR_TXIG, RFREG_MASK, rf_11);
+	rtw89_write_rf(rtwdev, path, RR_MOD, RR_MOD_RXB, cur_rxbb);
+	rtw89_phy_write32_mask(rtwdev, R_KIP_IQP + (path << 8), B_KIP_IQP_SW, reg_81cc);
+
+	rtw89_phy_write32_mask(rtwdev, R_MDPK_RX_DCK, B_MDPK_RX_DCK_EN, 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_KPATH_CFG, B_KPATH_CFG_ED, 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_LOAD_COEF + (path << 8), B_LOAD_COEF_DI, 0x1);
+
+	_dpk_kip_control_rfc(rtwdev, path, true);
+}
+
+static void _dpk_rf_setting(struct rtw89_dev *rtwdev, enum rtw89_rf_path path, u8 kidx)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+
+	if (dpk->bp[path][kidx].band == RTW89_BAND_2G) {
+		rtw89_write_rf(rtwdev, path, RR_MOD, RFREG_MASK, 0x50521);
+		rtw89_write_rf(rtwdev, path, RR_MOD_V1, RR_MOD_MASK, RF_DPK);
+		rtw89_write_rf(rtwdev, path, RR_RXBB, RR_RXBB_ATTC, 0x0);
+		rtw89_write_rf(rtwdev, path, RR_RXBB, RR_RXBB_ATTR, 0x7);
+	} else {
+		rtw89_write_rf(rtwdev, path, RR_MOD, RFREG_MASK,
+			       0x50521 | BIT(rtwdev->dbcc_en));
+		rtw89_write_rf(rtwdev, path, RR_MOD_V1, RR_MOD_MASK, RF_DPK);
+		rtw89_write_rf(rtwdev, path, RR_RXA2, RR_RAA2_SATT, 0x3);
+	}
+
+	rtw89_write_rf(rtwdev, path, RR_RCKD, RR_RCKD_BW, 0x1);
+	rtw89_write_rf(rtwdev, path, RR_BTC, RR_BTC_TXBB, dpk->bp[path][kidx].bw + 1);
+	rtw89_write_rf(rtwdev, path, RR_BTC, RR_BTC_RXBB, 0x0);
+	rtw89_write_rf(rtwdev, path, RR_RXBB2, RR_RXBB2_EBW, 0x0);
+}
+
+static void _dpk_bypass_rxiqc(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
+{
+	rtw89_phy_write32_mask(rtwdev, R_DPD_V1 + (path << 8), B_DPD_LBK, 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_RXIQC + (path << 8), MASKDWORD, 0x40000002);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] Bypass RXIQC\n");
+}
+
+static u16 _dpk_dgain_read(struct rtw89_dev *rtwdev)
+{
+	u16 dgain;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x0);
+	dgain = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_DCI);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] DGain = 0x%x\n", dgain);
+
+	return dgain;
+}
+
+static u8 _dpk_gainloss_read(struct rtw89_dev *rtwdev)
+{
+	u8 result;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x6);
+	rtw89_phy_write32_mask(rtwdev, R_DPK_CFG2, B_DPK_CFG2_ST, 0x1);
+	result = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, B_PRT_COM_GL);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] tmp GL = %d\n", result);
+
+	return result;
+}
+
+static u8 _dpk_gainloss(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			enum rtw89_rf_path path, u8 kidx)
+{
+	_dpk_one_shot(rtwdev, phy, path, D_GAIN_LOSS);
+	_dpk_kip_set_txagc(rtwdev, phy, path, 0xff, false);
+
+	rtw89_phy_write32_mask(rtwdev, R_DPK_GL + (path << 8), B_DPK_GL_A1, 0xf078);
+	rtw89_phy_write32_mask(rtwdev, R_DPK_GL + (path << 8), B_DPK_GL_A0, 0x0);
+
+	return _dpk_gainloss_read(rtwdev);
+}
+
+static u8 _dpk_pas_read(struct rtw89_dev *rtwdev, u8 is_check)
+{
+	u32 val1_i = 0, val1_q = 0, val2_i = 0, val2_q = 0;
+	u32 val1_sqrt_sum, val2_sqrt_sum;
+	u8 i;
+
+	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, MASKBYTE2, 0x06);
+	rtw89_phy_write32_mask(rtwdev, R_DPK_CFG2, B_DPK_CFG2_ST, 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_DPK_CFG3, MASKBYTE2, 0x08);
+
+	if (is_check) {
+		rtw89_phy_write32_mask(rtwdev, R_DPK_CFG3, MASKBYTE3, 0x00);
+		val1_i = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, MASKHWORD);
+		val1_i = abs(sign_extend32(val1_i, 11));
+		val1_q = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, MASKLWORD);
+		val1_q = abs(sign_extend32(val1_q, 11));
+
+		rtw89_phy_write32_mask(rtwdev, R_DPK_CFG3, MASKBYTE3, 0x1f);
+		val2_i = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, MASKHWORD);
+		val2_i = abs(sign_extend32(val2_i, 11));
+		val2_q = rtw89_phy_read32_mask(rtwdev, R_RPT_COM, MASKLWORD);
+		val2_q = abs(sign_extend32(val2_q, 11));
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] PAS_delta = 0x%x\n",
+			    phy_div(val1_i * val1_i + val1_q * val1_q,
+				    val2_i * val2_i + val2_q * val2_q));
+	} else {
+		for (i = 0; i < 32; i++) {
+			rtw89_phy_write32_mask(rtwdev, R_DPK_CFG3, MASKBYTE3, i);
+			rtw89_debug(rtwdev, RTW89_DBG_RFK,
+				    "[DPK] PAS_Read[%02d]= 0x%08x\n", i,
+				    rtw89_phy_read32_mask(rtwdev, R_RPT_COM, MASKDWORD));
+		}
+	}
+
+	val1_sqrt_sum = val1_i * val1_i + val1_q * val1_q;
+	val2_sqrt_sum = val2_i * val2_i + val2_q * val2_q;
+
+	if (val1_sqrt_sum < val2_sqrt_sum)
+		return 2;
+	else if (val1_sqrt_sum >= val2_sqrt_sum * 8 / 5)
+		return 1;
+	else
+		return 0;
+}
+
+static u8 _dpk_agc(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+		   enum rtw89_rf_path path, u8 kidx, u8 init_xdbm, u8 loss_only)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u8 tmp_dbm = init_xdbm, tmp_gl_idx = 0;
+	u8 step = DPK_AGC_STEP_SYNC_DGAIN;
+	u8 goout = 0, agc_cnt = 0;
+	bool is_fail = false;
+	int limit = 200;
+	u8 tmp_rxbb;
+	u16 dgain;
+
+	do {
+		switch (step) {
+		case DPK_AGC_STEP_SYNC_DGAIN:
+			is_fail = _dpk_kip_set_rxagc(rtwdev, phy, path, kidx);
+
+			if (is_fail) {
+				goout = 1;
+				break;
+			}
+
+			dgain = _dpk_dgain_read(rtwdev);
+
+			if (dgain > 0x5fc || dgain < 0x556) {
+				_dpk_one_shot(rtwdev, phy, path, D_SYNC);
+				dgain = _dpk_dgain_read(rtwdev);
+			}
+
+			if (agc_cnt == 0) {
+				if (dpk->bp[path][kidx].band == RTW89_BAND_2G)
+					_dpk_bypass_rxiqc(rtwdev, path);
+				else
+					_dpk_lbk_rxiqk(rtwdev, phy, path);
+			}
+			step = DPK_AGC_STEP_GAIN_LOSS_IDX;
+			break;
+
+		case DPK_AGC_STEP_GAIN_LOSS_IDX:
+			tmp_gl_idx = _dpk_gainloss(rtwdev, phy, path, kidx);
+
+			if (_dpk_pas_read(rtwdev, true) == 2 && tmp_gl_idx > 0)
+				step = DPK_AGC_STEP_GL_LT_CRITERION;
+			else if ((tmp_gl_idx == 0 && _dpk_pas_read(rtwdev, true) == 1) ||
+				 tmp_gl_idx >= 7)
+				step = DPK_AGC_STEP_GL_GT_CRITERION;
+			else if (tmp_gl_idx == 0)
+				step = DPK_AGC_STEP_GL_LT_CRITERION;
+			else
+				step = DPK_AGC_STEP_SET_TX_GAIN;
+			break;
+
+		case DPK_AGC_STEP_GL_GT_CRITERION:
+			if (tmp_dbm <= 7) {
+				goout = 1;
+				rtw89_debug(rtwdev, RTW89_DBG_RFK,
+					    "[DPK] Txagc@lower bound!!\n");
+			} else {
+				tmp_dbm = max_t(u8, tmp_dbm - 3, 7);
+				_dpk_kip_set_txagc(rtwdev, phy, path, tmp_dbm, true);
+			}
+			step = DPK_AGC_STEP_SYNC_DGAIN;
+			agc_cnt++;
+			break;
+
+		case DPK_AGC_STEP_GL_LT_CRITERION:
+			if (tmp_dbm >= 24) {
+				goout = 1;
+				rtw89_debug(rtwdev, RTW89_DBG_RFK,
+					    "[DPK] Txagc@upper bound!!\n");
+			} else {
+				tmp_dbm = min_t(u8, tmp_dbm + 2, 24);
+				_dpk_kip_set_txagc(rtwdev, phy, path, tmp_dbm, true);
+			}
+			step = DPK_AGC_STEP_SYNC_DGAIN;
+			agc_cnt++;
+			break;
+
+		case DPK_AGC_STEP_SET_TX_GAIN:
+			_dpk_kip_control_rfc(rtwdev, path, false);
+			tmp_rxbb = rtw89_read_rf(rtwdev, path, RR_MOD, RR_MOD_RXB);
+			tmp_rxbb = min_t(u8, tmp_rxbb + tmp_gl_idx, 0x1f);
+
+			rtw89_write_rf(rtwdev, path, RR_MOD, RR_MOD_RXB, tmp_rxbb);
+
+			rtw89_debug(rtwdev, RTW89_DBG_RFK,
+				    "[DPK] Adjust RXBB (%+d) = 0x%x\n",
+				    tmp_gl_idx, tmp_rxbb);
+			_dpk_kip_control_rfc(rtwdev, path, true);
+			goout = 1;
+			break;
+		default:
+			goout = 1;
+			break;
+		}
+	} while (!goout && agc_cnt < 6 && limit-- > 0);
+
+	return is_fail;
+}
+
+static void _dpk_set_mdpd_para(struct rtw89_dev *rtwdev, u8 order)
+{
+	switch (order) {
+	case 0: /* (5,3,1) */
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_OP, 0x0);
+		rtw89_phy_write32_mask(rtwdev, R_DPK_IDL, B_DPK_IDL_SEL, 0x2);
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_PN, 0x4);
+		rtw89_phy_write32_mask(rtwdev, R_MDPK_SYNC, B_MDPK_SYNC_DMAN, 0x1);
+		break;
+	case 1: /* (5,3,0) */
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_OP, 0x1);
+		rtw89_phy_write32_mask(rtwdev, R_DPK_IDL, B_DPK_IDL_SEL, 0x1);
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_PN, 0x0);
+		rtw89_phy_write32_mask(rtwdev, R_MDPK_SYNC, B_MDPK_SYNC_DMAN, 0x0);
+		break;
+	case 2: /* (5,0,0) */
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_OP, 0x2);
+		rtw89_phy_write32_mask(rtwdev, R_DPK_IDL, B_DPK_IDL_SEL, 0x0);
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_PN, 0x0);
+		rtw89_phy_write32_mask(rtwdev, R_MDPK_SYNC, B_MDPK_SYNC_DMAN, 0x0);
+		break;
+	case 3: /* (7,3,1) */
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_OP, 0x3);
+		rtw89_phy_write32_mask(rtwdev, R_DPK_IDL, B_DPK_IDL_SEL, 0x3);
+		rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_PN, 0x4);
+		rtw89_phy_write32_mask(rtwdev, R_MDPK_SYNC, B_MDPK_SYNC_DMAN, 0x1);
+		break;
+	default:
+		rtw89_debug(rtwdev, RTW89_DBG_RFK,
+			    "[DPK] Wrong MDPD order!!(0x%x)\n", order);
+		break;
+	}
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] Set %s for IDL\n",
+		    order == 0x0 ? "(5,3,1)" :
+		    order == 0x1 ? "(5,3,0)" :
+		    order == 0x2 ? "(5,0,0)" : "(7,3,1)");
+}
+
+static void _dpk_idl_mpa(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+			 enum rtw89_rf_path path, u8 kidx)
+{
+	rtw89_phy_write32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_MA, 0x1);
+
+	if (rtw89_phy_read32_mask(rtwdev, R_IDL_MPA, B_IDL_MD500) == 0x1)
+		_dpk_set_mdpd_para(rtwdev, 0x2);
+	else if (rtw89_phy_read32_mask(rtwdev, R_IDL_MPA, B_IDL_MD530) == 0x1)
+		_dpk_set_mdpd_para(rtwdev, 0x1);
+	else
+		_dpk_set_mdpd_para(rtwdev, 0x0);
+
+	rtw89_phy_write32_mask(rtwdev, R_DPK_IDL, B_DPK_IDL, 0x0);
+	fsleep(1000);
+
+	_dpk_one_shot(rtwdev, phy, path, D_MDPK_IDL);
+}
+
+static u8 _dpk_order_convert(struct rtw89_dev *rtwdev)
+{
+	u32 order;
+	u8 val;
+
+	order = rtw89_phy_read32_mask(rtwdev, R_LDL_NORM, B_LDL_NORM_OP);
+
+	switch (order) {
+	case 0: /* (5,3,1) */
+		val = 0x6;
+		break;
+	case 1: /* (5,3,0) */
+		val = 0x2;
+		break;
+	case 2: /* (5,0,0) */
+		val = 0x0;
+		break;
+	default:
+		val = 0xff;
+		break;
+	}
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] convert MDPD order to 0x%x\n", val);
+
+	return val;
+}
+
+static void _dpk_gain_normalize(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+				enum rtw89_rf_path path, u8 kidx, bool is_execute)
+{
+	static const u32 reg[RTW89_DPK_BKUP_NUM][DPK_KSET_NUM] = {
+		{0x8190, 0x8194, 0x8198, 0x81a4},
+		{0x81a8, 0x81c4, 0x81c8, 0x81e8}
+	};
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u8 cur_k_set = dpk->cur_k_set;
+
+	if (cur_k_set >= DPK_KSET_NUM) {
+		rtw89_warn(rtwdev, "DPK cur_k_set = %d\n", cur_k_set);
+		cur_k_set = 2;
+	}
+
+	if (is_execute) {
+		rtw89_phy_write32_mask(rtwdev, R_DPK_GN + (path << 8),
+				       B_DPK_GN_AG, 0x200);
+		rtw89_phy_write32_mask(rtwdev, R_DPK_GN + (path << 8),
+				       B_DPK_GN_EN, 0x3);
+
+		_dpk_one_shot(rtwdev, phy, path, D_GAIN_NORM);
+	} else {
+		rtw89_phy_write32_mask(rtwdev, reg[kidx][cur_k_set] + (path << 8),
+				       0x0000007F, 0x5b);
+	}
+
+	dpk->bp[path][kidx].gs =
+		rtw89_phy_read32_mask(rtwdev, reg[kidx][cur_k_set] + (path << 8),
+				      0x0000007F);
+}
+
+static void _dpk_on(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+		    enum rtw89_rf_path path, u8 kidx)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+
+	rtw89_phy_write32_mask(rtwdev, R_LOAD_COEF + (path << 8), B_LOAD_COEF_MDPD, 0x1);
+	rtw89_phy_write32_mask(rtwdev, R_LOAD_COEF + (path << 8), B_LOAD_COEF_MDPD, 0x0);
+	rtw89_phy_write32_mask(rtwdev, R_DPD_CH0A + (path << 8) + (kidx << 2),
+			       B_DPD_ORDER, _dpk_order_convert(rtwdev));
+
+	dpk->bp[path][kidx].path_ok =
+		dpk->bp[path][kidx].path_ok | BIT(dpk->cur_k_set);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d[%d] path_ok = 0x%x\n",
+		    path, kidx, dpk->bp[path][kidx].path_ok);
+
+	rtw89_phy_write32_mask(rtwdev, R_DPD_CH0A + (path << 8) + (kidx << 2),
+			       B_DPD_MEN, dpk->bp[path][kidx].path_ok);
+
+	_dpk_gain_normalize(rtwdev, phy, path, kidx, false);
+}
+
+static bool _dpk_main(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,
+		      enum rtw89_rf_path path)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u8 kidx = dpk->cur_idx[path];
+	u8 init_xdbm = 17;
+	bool is_fail;
+
+	if (dpk->bp[path][kidx].band != RTW89_BAND_2G)
+		init_xdbm = 15;
+
+	_dpk_kip_control_rfc(rtwdev, path, false);
+	_rfk_rf_direct_cntrl(rtwdev, path, false);
+	rtw89_write_rf(rtwdev, path, RR_BBDC, RFREG_MASK, 0x03ffd);
+
+	_dpk_rf_setting(rtwdev, path, kidx);
+	_set_rx_dck(rtwdev, path, RF_DPK);
+
+	_dpk_kip_pwr_clk_onoff(rtwdev, true);
+	_dpk_kip_preset(rtwdev, phy, path, kidx);
+	_dpk_txpwr_bb_force(rtwdev, path, true);
+	_dpk_kip_set_txagc(rtwdev, phy, path, init_xdbm, true);
+	_dpk_tpg_sel(rtwdev, path, kidx);
+	is_fail = _dpk_agc(rtwdev, phy, path, kidx, init_xdbm, false);
+	if (is_fail)
+		goto _error;
+
+	_dpk_idl_mpa(rtwdev, phy, path, kidx);
+	_dpk_para_query(rtwdev, path, kidx);
+
+	_dpk_on(rtwdev, phy, path, kidx);
+_error:
+	_dpk_kip_control_rfc(rtwdev, path, false);
+	rtw89_write_rf(rtwdev, path, RR_MOD, RR_MOD_MASK, RF_RX);
+
+	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d[%d]_K%d %s\n", path, kidx,
+		    dpk->cur_k_set, is_fail ? "need Check" : "is Success");
+
+	return is_fail;
+}
+
+static void _dpk_cal_select(struct rtw89_dev *rtwdev, bool force,
+			    enum rtw89_phy_idx phy, u8 kpath)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	u32 kip_bkup[RF_PATH_NUM_8851B][DPK_KIP_REG_NUM_8851B] = {};
+	u32 rf_bkup[RF_PATH_NUM_8851B][DPK_RF_REG_NUM_8851B] = {};
+	bool is_fail;
+	u8 path;
+
+	for (path = 0; path < RF_PATH_NUM_8851B; path++)
+		dpk->cur_idx[path] = 0;
+
+	for (path = 0; path < RF_PATH_NUM_8851B; path++) {
+		if (!(kpath & BIT(path)))
+			continue;
+		_dpk_bkup_kip(rtwdev, dpk_kip_reg, kip_bkup, path);
+		_dpk_bkup_rf(rtwdev, dpk_rf_reg, rf_bkup, path);
+		_dpk_information(rtwdev, phy, path);
+		_dpk_init(rtwdev, path);
+
+		if (rtwdev->is_tssi_mode[path])
+			_dpk_tssi_pause(rtwdev, path, true);
+	}
+
+	for (path = 0; path < RF_PATH_NUM_8851B; path++) {
+		if (!(kpath & BIT(path)))
+			continue;
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK,
+			    "[DPK] ========= S%d[%d] DPK Start =========\n",
+			    path, dpk->cur_idx[path]);
+
+		_dpk_rxagc_onoff(rtwdev, path, false);
+		_rfk_drf_direct_cntrl(rtwdev, path, false);
+		_dpk_bb_afe_setting(rtwdev, path);
+
+		is_fail = _dpk_main(rtwdev, phy, path);
+		_dpk_onoff(rtwdev, path, is_fail);
+	}
+
+	for (path = 0; path < RF_PATH_NUM_8851B; path++) {
+		if (!(kpath & BIT(path)))
+			continue;
+
+		_dpk_kip_restore(rtwdev, phy, path);
+		_dpk_reload_kip(rtwdev, dpk_kip_reg, kip_bkup, path);
+		_dpk_reload_rf(rtwdev, dpk_rf_reg, rf_bkup, path);
+		_dpk_bb_afe_restore(rtwdev, path);
+		_dpk_rxagc_onoff(rtwdev, path, true);
+
+		if (rtwdev->is_tssi_mode[path])
+			_dpk_tssi_pause(rtwdev, path, false);
+	}
+
+	_dpk_kip_pwr_clk_onoff(rtwdev, false);
+}
+
+static void _dpk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy, bool force)
+{
+	rtw89_debug(rtwdev, RTW89_DBG_RFK,
+		    "[DPK] ****** 8851B DPK Start (Ver: 0x%x, Cv: %d) ******\n",
+		    DPK_VER_8851B, rtwdev->hal.cv);
+
+	_dpk_cal_select(rtwdev, force, phy, _kpath(rtwdev, phy));
+}
+
+static void _dpk_track(struct rtw89_dev *rtwdev)
+{
+	struct rtw89_dpk_info *dpk = &rtwdev->dpk;
+	s8 txagc_bb, txagc_bb_tp, txagc_ofst;
+	s16 pwsf_tssi_ofst;
+	s8 delta_ther = 0;
+	u8 path, kidx;
+	u8 txagc_rf;
+	u8 cur_ther;
+
+	for (path = 0; path < RF_PATH_NUM_8851B; path++) {
+		kidx = dpk->cur_idx[path];
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,
+			    "[DPK_TRK] ================[S%d[%d] (CH %d)]================\n",
+			    path, kidx, dpk->bp[path][kidx].ch);
+
+		txagc_rf = rtw89_phy_read32_mask(rtwdev, R_TXAGC_BB + (path << 13),
+						 B_TXAGC_RF);
+		txagc_bb = rtw89_phy_read32_mask(rtwdev, R_TXAGC_BB + (path << 13),
+						 MASKBYTE2);
+		txagc_bb_tp = rtw89_phy_read32_mask(rtwdev, R_TXAGC_BTP + (path << 13),
+						    B_TXAGC_BTP);
+
+		rtw89_phy_write32_mask(rtwdev, R_KIP_RPT + (path << 8),
+				       B_KIP_RPT_SEL, 0xf);
+		cur_ther = rtw89_phy_read32_mask(rtwdev, R_RPT_PER + (path << 8),
+						 B_RPT_PER_TH);
+		txagc_ofst = rtw89_phy_read32_mask(rtwdev, R_RPT_PER + (path << 8),
+						   B_RPT_PER_OF);
+		pwsf_tssi_ofst = rtw89_phy_read32_mask(rtwdev, R_RPT_PER + (path << 8),
+						       B_RPT_PER_TSSI);
+		pwsf_tssi_ofst = sign_extend32(pwsf_tssi_ofst, 12);
+
+		delta_ther = cur_ther - dpk->bp[path][kidx].ther_dpk;
+
+		delta_ther = delta_ther * 2 / 3;
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,
+			    "[DPK_TRK] extra delta_ther = %d (0x%x / 0x%x@k)\n",
+			    delta_ther, cur_ther, dpk->bp[path][kidx].ther_dpk);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,
+			    "[DPK_TRK] delta_txagc = %d (0x%x / 0x%x@k)\n",
+			    txagc_rf - dpk->bp[path][kidx].txagc_dpk,
+			    txagc_rf, dpk->bp[path][kidx].txagc_dpk);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,
+			    "[DPK_TRK] txagc_offset / pwsf_tssi_ofst = 0x%x / %+d\n",
+			    txagc_ofst, pwsf_tssi_ofst);
+
+		rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,
+			    "[DPK_TRK] txagc_bb_tp / txagc_bb = 0x%x / 0x%x\n",
+			    txagc_bb_tp, txagc_bb);
+
+		if (rtw89_phy_read32_mask(rtwdev, R_IDL_MPA, B_IDL_DN) == 0x0 &&
+		    txagc_rf != 0) {
+			rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,
+				    "[DPK_TRK] New pwsf = 0x%x\n", 0x78 - delta_ther);
+
+			rtw89_phy_write32_mask(rtwdev,
+					       R_DPD_BND + (path << 8) + (kidx << 2),
+					       0x07FC0000, 0x78 - delta_ther);
+		}
+	}
+}
+
 static void _rck(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
 {
 	u32 rf_reg5;
@@ -1581,6 +2596,17 @@  static void _rck(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)
 		    rtw89_read_rf(rtwdev, path, RR_RCKC, RFREG_MASK));
 }
 
+static void rtw8851b_by_rate_dpd(struct rtw89_dev *rtwdev)
+{
+	rtw89_write32_mask(rtwdev, R_AX_PWR_SWING_OTHER_CTRL0,
+			   B_AX_CFIR_BY_RATE_OFF_MASK, 0x21861);
+}
+
+void rtw8851b_dpk_init(struct rtw89_dev *rtwdev)
+{
+	rtw8851b_by_rate_dpd(rtwdev);
+}
+
 void rtw8851b_aack(struct rtw89_dev *rtwdev)
 {
 	u32 tmp05, ib[4];
@@ -1664,6 +2690,28 @@  void rtw8851b_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx)
 	rtw89_btc_ntfy_wl_rfk(rtwdev, phy_map, BTC_WRFKT_RXDCK, BTC_WRFK_STOP);
 }
 
+void rtw8851b_dpk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx)
+{
+	u8 phy_map = rtw89_btc_phymap(rtwdev, phy_idx, 0);
+	u32 tx_en;
+
+	rtw89_btc_ntfy_wl_rfk(rtwdev, phy_map, BTC_WRFKT_DPK, BTC_WRFK_START);
+	rtw89_chip_stop_sch_tx(rtwdev, phy_idx, &tx_en, RTW89_SCH_TX_SEL_ALL);
+	_wait_rx_mode(rtwdev, _kpath(rtwdev, phy_idx));
+
+	rtwdev->dpk.is_dpk_enable = true;
+	rtwdev->dpk.is_dpk_reload_en = false;
+	_dpk(rtwdev, phy_idx, false);
+
+	rtw89_chip_resume_sch_tx(rtwdev, phy_idx, tx_en);
+	rtw89_btc_ntfy_wl_rfk(rtwdev, phy_map, BTC_WRFKT_DPK, BTC_WRFK_STOP);
+}
+
+void rtw8851b_dpk_track(struct rtw89_dev *rtwdev)
+{
+	_dpk_track(rtwdev);
+}
+
 static void _bw_setting(struct rtw89_dev *rtwdev, enum rtw89_rf_path path,
 			enum rtw89_bandwidth bw, bool dav)
 {
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.h b/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.h
index a77b3fd7f58a1..ce3bc8d405abd 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.h
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851b_rfk.h
@@ -12,6 +12,9 @@  void rtw8851b_rck(struct rtw89_dev *rtwdev);
 void rtw8851b_dack(struct rtw89_dev *rtwdev);
 void rtw8851b_iqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx);
 void rtw8851b_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx);
+void rtw8851b_dpk_init(struct rtw89_dev *rtwdev);
+void rtw8851b_dpk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);
+void rtw8851b_dpk_track(struct rtw89_dev *rtwdev);
 void rtw8851b_set_channel_rf(struct rtw89_dev *rtwdev,
 			     const struct rtw89_chan *chan,
 			     enum rtw89_phy_idx phy_idx);