diff --git a/bindings/arm/msm/qcom,qsee_irq.txt b/bindings/arm/msm/qcom,qsee_irq.txt
new file mode 100644
index 00000000..831c1fcd
--- /dev/null
+++ b/bindings/arm/msm/qcom,qsee_irq.txt
@@ -0,0 +1,81 @@
+Binding for the QTI Secure Execution Environment IRQ controller
+===============================================================
+
+The QTI Secure Execution Environment (QSEE) IRQ controller facilitates receiving
+and clearing interrupts from QSEE. Each interrupt from QSEE has a set of control
+registers to mask, clear and get the status of interrupts. This controller will
+create an interrupt for clients to register with based on the bits available in
+the control registers.
+
+- compatible:
+        Usage: required
+        Value type: <string>
+        Definition: must be one of:
+                    "qcom,sm8150-qsee-irq"
+
+- syscon:
+        usage: required
+        Value type: <prop-encoded-array>
+        Definition: phandle to a syscon node representing the scsr registers
+
+- interrupts:
+        Usage: required
+        Value type: <prop-encoded array>
+        Definition: multiple entries specifying the interrupts from QSEE
+
+- interrupt-names:
+        Usage: required
+        Value type: <string>
+        Definition: Interrupt names should be one of the following to map the
+                    interrupt back to the correct registers.
+                    - sp_ipc%d
+                    - sp_rmb
+
+- interrupt-controller:
+        Usage: required
+        Value type: <empty>
+        Definition: Identifies this node as an interrupt controller
+
+- #interrupt-cells
+        Usage: required
+        Value type: <u32>
+        Definition: must be 3 - for interrupts to encode these properties:
+                    - u32 denoting index of desired interrupt in @interrupts
+                    - u32 denoting bit of interrupt bank
+                    - u32 denoting IRQ flags
+
+= EXAMPLE
+The following example shows the QSEE_IRQ setup with the GLINK SPSS node, defined
+from the sm8150 apps processor's point-of-view. In this example the GLINK node
+registers for the sp_ipc0 interrupt(index 0 in interrupt-names) and the 0th
+bit on the sp_ipc0 interrupt bank.
+
+sp_scsr_block: syscon@1880000 {
+        compatible = “syscon”;
+        reg = <0x1880000 0x10000>;
+};
+
+intsp: qcom,qsee_irq {
+        compatible = "qcom,sm8150-qsee-irq";
+
+        syscon = <&sp_scsr_block>;
+        interrupts = <0 348 IRQ_TYPE_LEVEL_HIGH>,
+                     <0 349 IRQ_TYPE_LEVEL_HIGH>;
+
+        interrupt-names = "sp_ipc0",
+                          "sp_ipc1";
+
+        interrupt-controller;
+        #interrupt-cells = <3>;
+};
+
+spss {
+        ...
+        glink {
+                qcom,remote-pid = <8>;
+                mboxes = <&sp_scsr 0>;
+                mbox-names = "spss_spss";
+                interrupts = <&intsp 0 0 IRQ_TYPE_EDGE_RISING>;
+        };
+};
+
diff --git a/bindings/mailbox/qcom,apcs-kpss-global.yaml b/bindings/mailbox/qcom,apcs-kpss-global.yaml
index 8878ec00..867776ee 100644
--- a/bindings/mailbox/qcom,apcs-kpss-global.yaml
+++ b/bindings/mailbox/qcom,apcs-kpss-global.yaml
@@ -30,7 +30,7 @@ properties:
       - qcom,sdm845-apss-shared
       - qcom,sm6125-apcs-hmss-global
       - qcom,sm8150-apss-shared
-
+      - qcom,sm8150-spcs-global
   reg:
     maxItems: 1