arm64: dts: qcom: sm7225-fairphone-fp4: Enable ADSP, CDSP & MPSS

Enable the remoteprocs found on the SoC and add a qcom,rmtfs-mem node.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211213082208.21492-9-luca.weiss@fairphone.com

arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts

@@ -53,6 +53,27 @@ volume-up {
 			gpios = <&pm6350_gpios 2 GPIO_ACTIVE_LOW>;
 		};
 	};
+
+	reserved-memory {
+		/*
+		 * The rmtfs memory region in downstream is 'dynamically allocated'
+		 * but given the same address every time. Hard code it as this address is
+		 * where the modem firmware expects it to be.
+		 */
+		memory@efe01000 {
+			compatible = "qcom,rmtfs-mem";
+			reg = <0 0xefe01000 0 0x600000>;
+			no-map;
+
+			qcom,client-id = <1>;
+			qcom,vmid = <15>;
+		};
+	};
+};
+
+&adsp {
+	status = "okay";
+	firmware-name = "qcom/sm7225/fairphone4/adsp.mdt";
 };
 
 &apps_rsc {
@@ -269,6 +290,16 @@ vreg_bob: bob {
 	};
 };
 
+&cdsp {
+	status = "okay";
+	firmware-name = "qcom/sm7225/fairphone4/cdsp.mdt";
+};
+
+&mpss {
+	status = "okay";
+	firmware-name = "qcom/sm7225/fairphone4/modem.mdt";
+};
+
 &pm6350_gpios {
 	gpio_keys_pin: gpio-keys-pin {
 		pins = "gpio2";