Add SMP2P nodes for the SDX55 platform to communicate with the modem.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasi...@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55.dtsi | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-sdx55.dtsi 
b/arch/arm/boot/dts/qcom-sdx55.dtsi
index 20cb2c903a91..f2805b526516 100644
--- a/arch/arm/boot/dts/qcom-sdx55.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx55.dtsi
@@ -148,6 +148,37 @@ smem {
                hwlocks = <&tcsr_mutex 3>;
        };
 
+       smp2p-mpss {
+               compatible = "qcom,smp2p";
+               qcom,smem = <435>, <428>;
+               interrupts = <GIC_SPI 113 IRQ_TYPE_EDGE_RISING>;
+               mboxes = <&apcs 14>;
+               qcom,local-pid = <0>;
+               qcom,remote-pid = <1>;
+
+               modem_smp2p_out: master-kernel {
+                       qcom,entry-name = "master-kernel";
+                       #qcom,smem-state-cells = <1>;
+               };
+
+               modem_smp2p_in: slave-kernel {
+                       qcom,entry-name = "slave-kernel";
+                       interrupt-controller;
+                       #interrupt-cells = <2>;
+               };
+
+               ipa_smp2p_out: ipa-ap-to-modem {
+                       qcom,entry-name = "ipa";
+                       #qcom,smem-state-cells = <1>;
+               };
+
+               ipa_smp2p_in: ipa-modem-to-ap {
+                       qcom,entry-name = "ipa";
+                       interrupt-controller;
+                       #interrupt-cells = <2>;
+               };
+       };
+
        soc: soc {
                #address-cells = <1>;
                #size-cells = <1>;
-- 
2.25.1

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