diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index ec8bb5f10482e..ca34f4cde9725 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -1912,9 +1912,10 @@ __get_target(struct rtw89_dev *rtwdev, u16 *target, enum rtw89_pcie_phy phy_rate
 
 static int rtw89_pci_autok_x(struct rtw89_dev *rtwdev)
 {
+	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
 	int ret;
 
-	if (rtwdev->chip->chip_id != RTL8852B)
+	if (chip_id != RTL8852B && chip_id != RTL8851B)
 		return 0;
 
 	ret = rtw89_write16_mdio_mask(rtwdev, RAC_REG_FLD_0, BAC_AUTOK_N_MASK,
@@ -1924,13 +1925,14 @@ static int rtw89_pci_autok_x(struct rtw89_dev *rtwdev)
 
 static int rtw89_pci_auto_refclk_cal(struct rtw89_dev *rtwdev, bool autook_en)
 {
+	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
 	enum rtw89_pcie_phy phy_rate;
 	u16 val16, mgn_set, div_set, tar;
 	u8 val8, bdr_ori;
 	bool l1_flag = false;
 	int ret = 0;
 
-	if (rtwdev->chip->chip_id != RTL8852B)
+	if (chip_id != RTL8852B && chip_id != RTL8851B)
 		return 0;
 
 	ret = rtw89_pci_read_config_byte(rtwdev, RTW89_PCIE_PHY_RATE, &val8);
@@ -2107,7 +2109,9 @@ static void rtw89_pci_rxdma_prefth(struct rtw89_dev *rtwdev)
 
 static void rtw89_pci_l1off_pwroff(struct rtw89_dev *rtwdev)
 {
-	if (rtwdev->chip->chip_id != RTL8852A && rtwdev->chip->chip_id != RTL8852B)
+	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
+
+	if (chip_id != RTL8852A && chip_id != RTL8852B && chip_id != RTL8851B)
 		return;
 
 	rtw89_write32_clr(rtwdev, R_AX_PCIE_PS_CTRL, B_AX_L1OFF_PWR_OFF_EN);
@@ -2135,7 +2139,9 @@ static u32 rtw89_pci_l2_rxen_lat(struct rtw89_dev *rtwdev)
 
 static void rtw89_pci_aphy_pwrcut(struct rtw89_dev *rtwdev)
 {
-	if (rtwdev->chip->chip_id != RTL8852A && rtwdev->chip->chip_id != RTL8852B)
+	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
+
+	if (chip_id != RTL8852A && chip_id != RTL8852B && chip_id != RTL8851B)
 		return;
 
 	rtw89_write32_clr(rtwdev, R_AX_SYS_PW_CTRL, B_AX_PSUS_OFF_CAPC_EN);
@@ -2143,8 +2149,9 @@ static void rtw89_pci_aphy_pwrcut(struct rtw89_dev *rtwdev)
 
 static void rtw89_pci_hci_ldo(struct rtw89_dev *rtwdev)
 {
-	if (rtwdev->chip->chip_id == RTL8852A ||
-	    rtwdev->chip->chip_id == RTL8852B) {
+	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
+
+	if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
 		rtw89_write32_set(rtwdev, R_AX_SYS_SDIO_CTRL,
 				  B_AX_PCIE_DIS_L2_CTRL_LDO_HCI);
 		rtw89_write32_clr(rtwdev, R_AX_SYS_SDIO_CTRL,
@@ -2157,7 +2164,9 @@ static void rtw89_pci_hci_ldo(struct rtw89_dev *rtwdev)
 
 static int rtw89_pci_dphy_delay(struct rtw89_dev *rtwdev)
 {
-	if (rtwdev->chip->chip_id != RTL8852B)
+	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
+
+	if (chip_id != RTL8852B && chip_id != RTL8851B)
 		return 0;
 
 	return rtw89_write16_mdio_mask(rtwdev, RAC_REG_REV2, BAC_CMU_EN_DLY_MASK,
@@ -3398,7 +3407,7 @@ static void rtw89_pci_clkreq_set(struct rtw89_dev *rtwdev, bool enable)
 	if (ret)
 		rtw89_err(rtwdev, "failed to set CLKREQ Delay\n");
 
-	if (chip_id == RTL8852A || chip_id == RTL8852B) {
+	if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
 		if (enable)
 			ret = rtw89_pci_config_byte_set(rtwdev,
 							RTW89_PCIE_L1_CTRL,
@@ -3443,7 +3452,7 @@ static void rtw89_pci_aspm_set(struct rtw89_dev *rtwdev, bool enable)
 	if (ret)
 		rtw89_err(rtwdev, "failed to read ASPM Delay\n");
 
-	if (chip_id == RTL8852A || chip_id == RTL8852B) {
+	if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
 		if (enable)
 			ret = rtw89_pci_config_byte_set(rtwdev,
 							RTW89_PCIE_L1_CTRL,
@@ -3523,7 +3532,7 @@ static void rtw89_pci_l1ss_set(struct rtw89_dev *rtwdev, bool enable)
 	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
 	int ret;
 
-	if (chip_id == RTL8852A || chip_id == RTL8852B) {
+	if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
 		if (enable)
 			ret = rtw89_pci_config_byte_set(rtwdev,
 							RTW89_PCIE_TIMER_CTRL,
@@ -3722,7 +3731,7 @@ static int __maybe_unused rtw89_pci_suspend(struct device *dev)
 	rtw89_write32_set(rtwdev, R_AX_RSV_CTRL, B_AX_WLOCK_1C_BIT6);
 	rtw89_write32_set(rtwdev, R_AX_RSV_CTRL, B_AX_R_DIS_PRST);
 	rtw89_write32_clr(rtwdev, R_AX_RSV_CTRL, B_AX_WLOCK_1C_BIT6);
-	if (chip_id == RTL8852A || chip_id == RTL8852B) {
+	if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
 		rtw89_write32_clr(rtwdev, R_AX_SYS_SDIO_CTRL,
 				  B_AX_PCIE_DIS_L2_CTRL_LDO_HCI);
 		rtw89_write32_set(rtwdev, R_AX_PCIE_INIT_CFG1,
@@ -3756,7 +3765,7 @@ static int __maybe_unused rtw89_pci_resume(struct device *dev)
 	rtw89_write32_set(rtwdev, R_AX_RSV_CTRL, B_AX_WLOCK_1C_BIT6);
 	rtw89_write32_clr(rtwdev, R_AX_RSV_CTRL, B_AX_R_DIS_PRST);
 	rtw89_write32_clr(rtwdev, R_AX_RSV_CTRL, B_AX_WLOCK_1C_BIT6);
-	if (chip_id == RTL8852A || chip_id == RTL8852B) {
+	if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
 		rtw89_write32_set(rtwdev, R_AX_SYS_SDIO_CTRL,
 				  B_AX_PCIE_DIS_L2_CTRL_LDO_HCI);
 		rtw89_write32_clr(rtwdev, R_AX_PCIE_INIT_CFG1,
