From: Esteban Urrutia <esteuwu@proton.me>

Add support for IPA in DT while expanding the IMEM region just enough to
accommodate the modem tables used by IPA.
As reference, SM8450 uses IPA v5.1.

Signed-off-by: Esteban Urrutia <esteuwu@proton.me>
---
 arch/arm64/boot/dts/qcom/sm8450.dtsi | 55 ++++++++++++++++++++++++++++++++----
 1 file changed, 50 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 56cb6e959e4e..c904720008fa 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -2639,6 +2639,47 @@ adreno_smmu: iommu@3da0000 {
 			dma-coherent;
 		};
 
+		ipa: ipa@3f40000 {
+			compatible = "qcom,sm8450-ipa";
+
+			iommus = <&apps_smmu 0x5c0 0x0>,
+				 <&apps_smmu 0x5c2 0x0>;
+			reg = <0 0x3f40000 0 0x10000>,
+			      <0 0x3f50000 0 0x5000>,
+			      <0 0x3e04000 0 0xfc000>;
+			reg-names = "ipa-reg",
+				    "ipa-shared",
+				    "gsi";
+
+			interrupts-extended = <&intc GIC_SPI 654 IRQ_TYPE_EDGE_RISING>,
+					      <&intc GIC_SPI 432 IRQ_TYPE_LEVEL_HIGH>,
+					      <&ipa_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+					      <&ipa_smp2p_in 1 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "ipa",
+					  "gsi",
+					  "ipa-clock-query",
+					  "ipa-setup-ready";
+
+			clocks = <&rpmhcc RPMH_IPA_CLK>;
+			clock-names = "core";
+
+			interconnects = <&aggre2_noc MASTER_IPA 0 &mc_virt SLAVE_EBI1 0>,
+					<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_IPA_CFG 0>;
+			interconnect-names = "memory",
+					     "config";
+
+			qcom,qmp = <&aoss_qmp>;
+
+			qcom,smem-states = <&ipa_smp2p_out 0>,
+					   <&ipa_smp2p_out 1>;
+			qcom,smem-state-names = "ipa-clock-enabled-valid",
+						"ipa-clock-enabled";
+
+			sram = <&ipa_modem_tables>;
+
+			status = "disabled";
+		};
+
 		usb_1_hsphy: phy@88e3000 {
 			compatible = "qcom,sm8450-usb-hs-phy",
 				     "qcom,usb-snps-hs-7nm-phy";
@@ -4970,17 +5011,21 @@ cti@13900000 {
 			clock-names = "apb_pclk";
 		};
 
-		sram@146aa000 {
+		sram@146a8000 {
 			compatible = "qcom,sm8450-imem", "syscon", "simple-mfd";
-			reg = <0 0x146aa000 0 0x1000>;
-			ranges = <0 0 0x146aa000 0x1000>;
+			reg = <0 0x146a8000 0 0x3000>;
+			ranges = <0 0 0x146a8000 0x3000>;
 
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			pil-reloc@94c {
+			ipa_modem_tables: modem-tables@0 {
+				reg = <0 0x2000>;
+			};
+
+			pil-reloc@294c {
 				compatible = "qcom,pil-reloc-info";
-				reg = <0x94c 0xc8>;
+				reg = <0x294c 0xc8>;
 			};
 		};
 

-- 
2.54.0