linux-kernel - [PATCH 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema

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Date:   Tue, 19 Apr 2022 22:09:39 +0400
From:   Yassine Oudjana <yassine.oudjana@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Sam Shih <sam.shih@...iatek.com>, Stephen Boyd <sboyd@...nel.org>,
        Ryder Lee <ryder.lee@...nel.org>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        devicetree@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema

From: Yassine Oudjana <y.oudjana@...tonmail.com>

Convert infracfg bindings to DT schema format. Not all drivers
currently implement resets, so #reset-cells is made a required
property only for those that do. Using power-controller in the
example node name makes #power-domain-cells required causing
a dt_binding_check error. To solve this, the node is renamed to
syscon@...01000.

Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
---
 .../arm/mediatek/mediatek,infracfg.txt        | 42 ----------
 .../arm/mediatek/mediatek,infracfg.yaml       | 79 +++++++++++++++++++
 2 files changed, 79 insertions(+), 42 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
deleted file mode 100644
index f66bd720571d..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-Mediatek infracfg controller
-============================
-
-The Mediatek infracfg controller provides various clocks and reset
-outputs to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
-	- "mediatek,mt2701-infracfg", "syscon"
-	- "mediatek,mt2712-infracfg", "syscon"
-	- "mediatek,mt6765-infracfg", "syscon"
-	- "mediatek,mt6779-infracfg_ao", "syscon"
-	- "mediatek,mt6797-infracfg", "syscon"
-	- "mediatek,mt7622-infracfg", "syscon"
-	- "mediatek,mt7623-infracfg", "mediatek,mt2701-infracfg", "syscon"
-	- "mediatek,mt7629-infracfg", "syscon"
-	- "mediatek,mt7986-infracfg", "syscon"
-	- "mediatek,mt8135-infracfg", "syscon"
-	- "mediatek,mt8167-infracfg", "syscon"
-	- "mediatek,mt8173-infracfg", "syscon"
-	- "mediatek,mt8183-infracfg", "syscon"
-	- "mediatek,mt8516-infracfg", "syscon"
-- #clock-cells: Must be 1
-- #reset-cells: Must be 1
-
-The infracfg controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-Also it uses the common reset controller binding from
-Documentation/devicetree/bindings/reset/reset.txt.
-The available reset outputs are defined in
-dt-bindings/reset/mt*-resets.h
-
-Example:
-
-infracfg: power-controller@...01000 {
-	compatible = "mediatek,mt8173-infracfg", "syscon";
-	reg = <0 0x10001000 0 0x1000>;
-	#clock-cells = <1>;
-	#reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
new file mode 100644
index 000000000000..4f43fe9f103e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,infracfg.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek Infrastructure System Configuration Controller
+
+maintainers:
+  - Matthias Brugger <matthias.bgg@...il.com>
+
+description:
+  The Mediatek infracfg controller provides various clocks and reset outputs
+  to the system.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - mediatek,mt2701-infracfg
+              - mediatek,mt2712-infracfg
+              - mediatek,mt6765-infracfg
+              - mediatek,mt6779-infracfg_ao
+              - mediatek,mt6797-infracfg
+              - mediatek,mt7622-infracfg
+              - mediatek,mt7629-infracfg
+              - mediatek,mt7986-infracfg
+              - mediatek,mt8135-infracfg
+              - mediatek,mt8167-infracfg
+              - mediatek,mt8173-infracfg
+              - mediatek,mt8183-infracfg
+              - mediatek,mt8516-infracfg
+          - const: syscon
+      - items:
+          - const: mediatek,mt7623-infracfg
+          - const: mediatek,mt2701-infracfg
+          - const: syscon
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - mediatek,mt2701-infracfg
+          - mediatek,mt2712-infracfg
+          - mediatek,mt7622-infracfg
+          - mediatek,mt7986-infracfg
+          - mediatek,mt8135-infracfg
+          - mediatek,mt8173-infracfg
+          - mediatek,mt8183-infracfg
+then:
+  required:
+    - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    infracfg: syscon@...01000 {
+        compatible = "mediatek,mt8173-infracfg", "syscon";
+        reg = <0x10001000 0x1000>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
-- 
2.35.3