diff --git a/bindings/pci/pci-msm.txt b/bindings/pci/pci-msm.txt
index 62a03e57ba9c..27741ba20e1c 100644
--- a/bindings/pci/pci-msm.txt
+++ b/bindings/pci/pci-msm.txt
@@ -351,6 +351,12 @@ interconnects:
 		de-asserted. This guarantees the 100MHz clock is available for
 		the PCIe devices
 
+- qcom,num-parf-testbus-sel:
+	Usage: optional
+	Value type: <u32>
+	Definition: Defines the number of testbus selectors available for PARF
+		for a given PCIe controller.
+
 - qcom,switch-latency:
 	Usage: optional
 	Definition: The latency(ms) between when PCIe link is up and before
@@ -553,6 +559,7 @@ Example
 		qcom,perst-delay-us-min = <10>;
 		qcom,perst-delay-us-max = <15>;
 		qcom,ep-latency = <20>;
+		qcom,num-parf-testbus-sel = <0xb9>;
 		qcom,switch-latency = <25>;
 
 		qcom,eq-pset-req-vec = <0>;
diff --git a/qcom/lahaina-pcie.dtsi b/qcom/lahaina-pcie.dtsi
index c72e6031377f..51682b0aa0a8 100644
--- a/qcom/lahaina-pcie.dtsi
+++ b/qcom/lahaina-pcie.dtsi
@@ -117,6 +117,7 @@
 		qcom,l1-2-th-value = <70>;
 		qcom,slv-addr-space-size = <0x4000000>;
 		qcom,ep-latency = <10>;
+		qcom,num-parf-testbus-sel = <0xb9>;
 
 		qcom,pcie-phy-ver = <10100>;
 		qcom,phy-status-offset = <0x214>;
@@ -351,6 +352,7 @@
 		qcom,no-l0s-supported;
 		qcom,slv-addr-space-size = <0x20000000>;
 		qcom,ep-latency = <10>;
+		qcom,num-parf-testbus-sel = <0xb9>;
 
 		qcom,pcie-phy-ver = <1106>;
 		qcom,phy-status-offset = <0x214>;
diff --git a/qcom/sdxlemur-pcie.dtsi b/qcom/sdxlemur-pcie.dtsi
index 5d7bf48210b2..50ca15604811 100644
--- a/qcom/sdxlemur-pcie.dtsi
+++ b/qcom/sdxlemur-pcie.dtsi
@@ -110,6 +110,7 @@
 		qcom,eq-fmdc-t-min-phase23 = <1>;
 		qcom,slv-addr-space-size = <0x40000000>;
 		qcom,ep-latency = <10>;
+		qcom,num-parf-testbus-sel = <0xb9>;
 
 		qcom,pcie-phy-ver = <1102>;
 		qcom,phy-status-offset = <0x1214>;
diff --git a/qcom/shima-pcie.dtsi b/qcom/shima-pcie.dtsi
index 9d494201d261..15f821e9ccce 100644
--- a/qcom/shima-pcie.dtsi
+++ b/qcom/shima-pcie.dtsi
@@ -113,6 +113,7 @@
 		qcom,l1-2-th-value = <70>;
 		qcom,slv-addr-space-size = <0x4000000>;
 		qcom,ep-latency = <10>;
+		qcom,num-parf-testbus-sel = <0xb9>;
 
 		qcom,phy-manage-pll = <1>;
 		qcom,phy-resetsm-cntrl2 = <0xa0>;