[PATCH v4] dt-bindings: soc: qcom: convert qcom,smem bindings to yaml

* [PATCH v4] dt-bindings: soc: qcom: convert qcom,smem bindings to yaml
@ 2020-12-15 10:45 Dmitry Baryshkov
  2020-12-15 15:27 ` Bjorn Andersson
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Dmitry Baryshkov @ 2020-12-15 10:45 UTC (permalink / raw)
  To: Andy Gross, Bjorn Andersson, Rob Herring; +Cc: linux-arm-msm, devicetree

Convert soc/qcom/qcom,smem.txt bindings to YAML format.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../bindings/soc/qcom/qcom,smem.txt           | 57 ---------------
 .../bindings/soc/qcom/qcom,smem.yaml          | 72 +++++++++++++++++++
 2 files changed, 72 insertions(+), 57 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
 create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
deleted file mode 100644
index 9326cdf6e1b1..000000000000
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Qualcomm Shared Memory Manager binding
-
-This binding describes the Qualcomm Shared Memory Manager, used to share data
-between various subsystems and OSes in Qualcomm platforms.
-
-- compatible:
-	Usage: required
-	Value type: <stringlist>
-	Definition: must be:
-		    "qcom,smem"
-
-- memory-region:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: handle to memory reservation for main SMEM memory region.
-
-- qcom,rpm-msg-ram:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: handle to RPM message memory resource
-
-- hwlocks:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: reference to a hwspinlock used to protect allocations from
-		    the shared memory
-
-= EXAMPLE
-The following example shows the SMEM setup for MSM8974, with a main SMEM region
-at 0xfa00000 and the RPM message ram at 0xfc428000:
-
-	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		smem_region: smem@fa00000 {
-			reg = <0xfa00000 0x200000>;
-			no-map;
-		};
-	};
-
-	smem@fa00000 {
-		compatible = "qcom,smem";
-
-		memory-region = <&smem_region>;
-		qcom,rpm-msg-ram = <&rpm_msg_ram>;
-
-		hwlocks = <&tcsr_mutex 3>;
-	};
-
-	soc {
-		rpm_msg_ram: memory@fc428000 {
-			compatible = "qcom,rpm-msg-ram";
-			reg = <0xfc428000 0x4000>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml
new file mode 100644
index 000000000000..f7e17713b3d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Shared Memory Manager binding
+
+maintainers:
+  - Andy Gross <agross@kernel.org>
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+  This binding describes the Qualcomm Shared Memory Manager, used to share data
+  between various subsystems and OSes in Qualcomm platforms.
+
+properties:
+  compatible:
+    const: qcom,smem
+
+  memory-region:
+    maxItems: 1
+    description: handle to memory reservation for main SMEM memory region.
+
+  hwlocks:
+    maxItems: 1
+
+  qcom,rpm-msg-ram:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: handle to RPM message memory resource
+
+required:
+  - compatible
+  - memory-region
+  - hwlocks
+
+additionalProperties: false
+
+examples:
+  - |
+    reserved-memory {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        smem_region: smem@fa00000 {
+            reg = <0xfa00000 0x200000>;
+            no-map;
+        };
+    };
+
+    smem {
+        compatible = "qcom,smem";
+
+        memory-region = <&smem_region>;
+        qcom,rpm-msg-ram = <&rpm_msg_ram>;
+
+        hwlocks = <&tcsr_mutex 3>;
+    };
+
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        rpm_msg_ram: sram@fc428000 {
+            compatible = "qcom,rpm-msg-ram";
+            reg = <0xfc428000 0x4000>;
+        };
+    };
+
+...
-- 
2.29.2


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