diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index cb8f1470cf59..3a7eed1d4c5e 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -163,21 +163,29 @@ static bool _rtl_pci_platform_switch_device_pci_aspm(
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
-	if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
-		value |= 0x40;
+	value &= PCI_EXP_LNKCTL_ASPMC;
 
-	pci_write_config_byte(rtlpci->pdev, 0x80, value);
+	if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
+		value |= PCI_EXP_LNKCTL_CCC;
+
+	pcie_capability_clear_and_set_word(rtlpci->pdev, PCI_EXP_LNKCTL,
+					   PCI_EXP_LNKCTL_ASPMC | value,
+					   value);
 
 	return false;
 }
 
-/*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
-static void _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
+/* @value is PCI_EXP_LNKCTL_CLKREQ_EN or 0 to enable/disable clk request. */
+static void _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u16 value)
 {
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
-	pci_write_config_byte(rtlpci->pdev, 0x81, value);
+	value &= PCI_EXP_LNKCTL_CLKREQ_EN;
+
+	pcie_capability_clear_and_set_word(rtlpci->pdev, PCI_EXP_LNKCTL,
+					   PCI_EXP_LNKCTL_CLKREQ_EN,
+					   value);
 
 	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
 		udelay(100);
@@ -258,7 +266,8 @@ static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 
 	if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
 		_rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level &
-					     RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0);
+					     RT_RF_OFF_LEVL_CLK_REQ) ?
+					     PCI_EXP_LNKCTL_CLKREQ_EN : 0);
 		RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
 	}
 	udelay(100);