pop-os · mmstick · Jun 15, 2023 · Jun 15, 2023 · Jun 15, 2023 · Jun 15, 2023
diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
@@ -71,6 +71,8 @@ properties:
     minItems: 1
     maxItems: 3
 
+  dma-coherent: true
+
   interconnects:
     maxItems: 1
 

diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
@@ -393,6 +393,11 @@
 	qcom,spare-regs = <&tcsr_regs_2 0xb3e4>;
 };
 
+&scm {
+	/* TF-A firmware maps memory cached so mark dma-coherent to match. */
+	dma-coherent;
+};
+
 &sdhc_1 {
 	status = "okay";
 

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -892,6 +892,11 @@ hp_i2c: &i2c9 {
 	qcom,spare-regs = <&tcsr_regs_2 0xb3e4>;
 };
 
+&scm {
+	/* TF-A firmware maps memory cached so mark dma-coherent to match. */
+	dma-coherent;
+};
+
 &sdhc_1 {
 	status = "okay";
 

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -369,7 +369,7 @@
 	};
 
 	firmware {
-		scm {
+		scm: scm {
 			compatible = "qcom,scm-sc7180", "qcom,scm";
 		};
 	};

diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
@@ -79,6 +79,11 @@
 	firmware-name = "ath11k/WCN6750/hw1.0/wpss.mdt";
 };
 
+&scm {
+	/* TF-A firmware maps memory cached so mark dma-coherent to match. */
+	dma-coherent;
+};
+
 &wifi {
 	status = "okay";
 

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -656,7 +656,7 @@
 	};
 
 	firmware {
-		scm {
+		scm: scm {
 			compatible = "qcom,scm-sc7280", "qcom,scm";
 		};
 	};
-Original file line number
+Diff line change
@@ Expand Up / @@ -369,7 +369,7 @@ @@
     	};
     	firmware {
-    		scm {
+    		scm: scm {
     			compatible = "qcom,scm-sc7180", "qcom,scm";
     		};
     	};
@@ Expand Down @@