arm64: dts: qcom: msm8994: Add OCMEM node

Add OCMEM node to allow for GPU SRAM access.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220319174645.340379-13-konrad.dybcio@somainline.org

arch/arm64/boot/dts/qcom/msm8992.dtsi

@@ -24,6 +24,14 @@ &mmcc {
 			       <800000000>;
 };
 
+&ocmem {
+	reg = <0xfdd00000 0x2000>, <0xfec00000 0x100000>;
+
+	gmu-sram@0 {
+		reg = <0x0 0x80000>;
+	};
+};
+
 &rpmcc {
 	compatible = "qcom,rpmcc-msm8992";
 };

arch/arm64/boot/dts/qcom/msm8994.dtsi

@@ -1052,6 +1052,23 @@ mmcc: clock-controller@fd8c0000 {
 					       <960000000>,
 					       <600000000>;
 		};
+
+		ocmem: ocmem@fdd00000 {
+			compatible = "qcom,msm8974-ocmem";
+			reg = <0xfdd00000 0x2000>,
+			      <0xfec00000 0x200000>;
+			reg-names = "ctrl", "mem";
+			clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
+				 <&mmcc OCMEMCX_OCMEMNOC_CLK>;
+			clock-names = "core", "iface";
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			gmu_sram: gmu-sram@0 {
+				reg = <0x0 0x180000>;
+			};
+		};
 	};
 
 	timer: timer {