diff --git a/bindings/cnss/cnss-wlan.txt b/bindings/cnss/cnss-wlan.txt
index 493fed921801..6dcde8ad4264 100644
--- a/bindings/cnss/cnss-wlan.txt
+++ b/bindings/cnss/cnss-wlan.txt
@@ -73,6 +73,8 @@ Optional properties:
   - interconnects: Interconnect framework setup for bus configuration
   - qcom,bus-bw-cfg-num: Number of bus bandwidth voting cases
   - qcom,bus-bw-cfg: Bus bandwidth voting data
+  - qcom,tcs_offset_int_pow_amp_vreg: TCS CMD register offset for Voltage
+		regulator used in internal power amplifier for QCA6490
 
 Example:
 
diff --git a/qcom/lahaina.dtsi b/qcom/lahaina.dtsi
index 2525552dd229..d7f20a678ce7 100644
--- a/qcom/lahaina.dtsi
+++ b/qcom/lahaina.dtsi
@@ -5239,8 +5239,9 @@
 
 	wlan: qcom,cnss-qca6490@b0000000 {
 		compatible = "qcom,cnss-qca6490";
-		reg = <0xb0000000 0x10000>;
-		reg-names = "smmu_iova_ipa";
+		reg = <0xb0000000 0x10000>,
+		      <0xb2e5510 0x690>;
+		reg-names = "smmu_iova_ipa", "tcs_cmd";
 		wlan-en-gpio = <&tlmm 64 0>;
 		pinctrl-names = "wlan_en_active", "wlan_en_sleep";
 		pinctrl-0 = <&cnss_wlan_en_active>;
@@ -5248,6 +5249,8 @@
 		qcom,wlan-rc-num = <0>;
 		qcom,wlan-ramdump-dynamic = <0x420000>;
 		qcom,wlan-cbc-enabled;
+		/* RPMH_PDC_WLAN_RF_TCS<6>_CMD<2> offset */
+		qcom,tcs_offset_int_pow_amp_vreg = <0x4D0>;
 
 		vdd-wlan-aon-supply = <&S2E>;
 		qcom,vdd-wlan-aon-config = <950000 952000 0 0 1>;