ARM: dts: msm: add dummy SPSS ETM device for SDM845

Add dummy device for SPSS ETM. This device can be used to configure
SPSS ETM trace path.

Change-Id: I63d269940dbb68d8beb5549914b221b4b1b65979
Signed-off-by: Satyajit Desai <sadesai@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm845-coresight.dtsi b/arch/arm64/boot/dts/qcom/sdm845-coresight.dtsi
index c1fcb62..3cfcddb 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-coresight.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-coresight.dtsi
@@ -1430,6 +1430,15 @@
 						<&tpda_spss_out_funnel_spss>;
 				};
 			};
+
+			port@2 {
+				reg = <1>;
+				funnel_spss_in_spss_etm0: endpoint {
+					slave-mode;
+					remote-endpoint =
+						<&spss_etm0_out_funnel_spss>;
+				};
+			};
 		};
 	};
 
@@ -1931,6 +1940,20 @@
 		};
 	};
 
+	spss_etm0 {
+		compatible = "qcom,coresight-dummy";
+
+		coresight-name = "coresight-spss-etm0";
+
+		qcom,dummy-source;
+		port {
+			spss_etm0_out_funnel_spss: endpoint {
+				remote-endpoint =
+					<&funnel_spss_in_spss_etm0>;
+			};
+		};
+	};
+
 	funnel_apss_merg: funnel@7810000 {
 		compatible = "arm,primecell";
 		arm,primecell-periphid = <0x0003b908>;