ARM: dts: qcom: Add rpm-proc node for SMD platforms

Rather than having the RPM SMD channels as the only child of a dummy
SMD node, switch to representing the RPM as remoteproc like all the
other remoteprocs (WCNSS, modem DSP).

This allows assigning additional subdevices to it like the MPM
interrupt-controller or rpm-master-stats.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-12-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: stephan-gh

arch/arm/boot/dts/qcom/qcom-apq8084.dtsi

@@ -784,10 +784,10 @@
 		};
 	};
 
-	smd {
-		compatible = "qcom,smd";
+	rpm: remoteproc {
+		compatible = "qcom,apq8084-rpm-proc", "qcom,rpm-proc";
 
-		rpm {
+		smd-edge {
 			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
 			qcom,ipc = <&apcs 8 0>;
 			qcom,smd-edge = <15>;

arch/arm/boot/dts/qcom/qcom-msm8226.dtsi

@@ -53,26 +53,10 @@
 					 IRQ_TYPE_LEVEL_HIGH)>;
 	};
 
-	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		smem_region: smem@3000000 {
-			reg = <0x3000000 0x100000>;
-			no-map;
-		};
-
-		adsp_region: adsp@dc00000 {
-			reg = <0x0dc00000 0x1900000>;
-			no-map;
-		};
-	};
-
-	smd {
-		compatible = "qcom,smd";
+	rpm: remoteproc {
+		compatible = "qcom,msm8226-rpm-proc", "qcom,rpm-proc";
 
-		rpm {
+		smd-edge {
 			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
 			qcom,ipc = <&apcs 8 0>;
 			qcom,smd-edge = <15>;
@@ -120,6 +104,22 @@
 		};
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		smem_region: smem@3000000 {
+			reg = <0x3000000 0x100000>;
+			no-map;
+		};
+
+		adsp_region: adsp@dc00000 {
+			reg = <0x0dc00000 0x1900000>;
+			no-map;
+		};
+	};
+
 	smem {
 		compatible = "qcom,smem";
 

arch/arm/boot/dts/qcom/qcom-msm8974.dtsi

@@ -113,6 +113,28 @@
 		interrupts = <GIC_PPI 7 0xf04>;
 	};
 
+	rpm: remoteproc {
+		compatible = "qcom,msm8974-rpm-proc", "qcom,rpm-proc";
+
+		smd-edge {
+			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+			qcom,ipc = <&apcs 8 0>;
+			qcom,smd-edge = <15>;
+
+			rpm_requests: rpm-requests {
+				compatible = "qcom,rpm-msm8974";
+				qcom,smd-channels = "rpm_requests";
+
+				rpmcc: clock-controller {
+					compatible = "qcom,rpmcc-msm8974", "qcom,rpmcc";
+					#clock-cells = <1>;
+					clocks = <&xo_board>;
+					clock-names = "xo";
+				};
+			};
+		};
+	};
+
 	reserved-memory {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -293,28 +315,6 @@
 		};
 	};
 
-	smd {
-		compatible = "qcom,smd";
-
-		rpm {
-			interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
-			qcom,ipc = <&apcs 8 0>;
-			qcom,smd-edge = <15>;
-
-			rpm_requests: rpm-requests {
-				compatible = "qcom,rpm-msm8974";
-				qcom,smd-channels = "rpm_requests";
-
-				rpmcc: clock-controller {
-					compatible = "qcom,rpmcc-msm8974", "qcom,rpmcc";
-					#clock-cells = <1>;
-					clocks = <&xo_board>;
-					clock-names = "xo";
-				};
-			};
-		};
-	};
-
 	soc: soc {
 		#address-cells = <1>;
 		#size-cells = <1>;