netdev - [PATCH 01/13] dt-bindings: i2c: i2c-wmt: Convert to YAML

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Message-Id: <20250416-wmt-updates-v1-1-f9af689cdfc2@gmail.com>
Date: Wed, 16 Apr 2025 12:21:26 +0400
From: Alexey Charkov <alchark@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
 Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Ulf Hansson <ulf.hansson@...aro.org>, Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Uwe Kleine-König <ukleinek@...nel.org>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-i2c@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-mmc@...r.kernel.org, netdev@...r.kernel.org, 
 linux-pwm@...r.kernel.org, Alexey Charkov <alchark@...il.com>
Subject: [PATCH 01/13] dt-bindings: i2c: i2c-wmt: Convert to YAML

Rewrite the textual description for the WonderMedia I2C controller
as YAML schema, and switch the filename to follow the compatible
string.

The controller only supports two bus speeds (100kHz and 400kHz)
so restrict clock-frequency values accordingly.

Signed-off-by: Alexey Charkov <alchark@...il.com>
---
 Documentation/devicetree/bindings/i2c/i2c-wmt.txt  | 24 -----------
 .../devicetree/bindings/i2c/wm,wm8505-i2c.yaml     | 47 ++++++++++++++++++++++
 MAINTAINERS                                        |  2 +-
 3 files changed, 48 insertions(+), 25 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-wmt.txt b/Documentation/devicetree/bindings/i2c/i2c-wmt.txt
deleted file mode 100644
index 94a425eaa6c78bc9e3136ae7055b51635baf16ca..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-wmt.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-* Wondermedia I2C Controller
-
-Required properties :
-
- - compatible : should be "wm,wm8505-i2c"
- - reg : Offset and length of the register set for the device
- - interrupts : <IRQ> where IRQ is the interrupt number
- - clocks : phandle to the I2C clock source
-
-Optional properties :
-
- - clock-frequency : desired I2C bus clock frequency in Hz.
-	Valid values are 100000 and 400000.
-	Default to 100000 if not specified, or invalid value.
-
-Example :
-
-	i2c_0: i2c@...80000 {
-		compatible = "wm,wm8505-i2c";
-		reg = <0xd8280000 0x1000>;
-		interrupts = <19>;
-		clocks = <&clki2c0>;
-		clock-frequency = <400000>;
-	};
diff --git a/Documentation/devicetree/bindings/i2c/wm,wm8505-i2c.yaml b/Documentation/devicetree/bindings/i2c/wm,wm8505-i2c.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..e498ce47b885203fcfe233b946f987abdac6784a
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/wm,wm8505-i2c.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/wm,wm8505-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C Controller on WonderMedia WM8505 and related SoCs
+
+maintainers:
+  - Alexey Charkov <alchark@...il.com>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    const: wm,wm8505-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-frequency:
+    enum: [100000, 400000]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c_0: i2c@...80000 {
+        compatible = "wm,wm8505-i2c";
+        reg = <0xd8280000 0x1000>;
+        interrupts = <19>;
+        clocks = <&clki2c0>;
+        clock-frequency = <400000>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 96b82704950184bd71623ff41fc4df31e4c7fe87..c5195a98b15a39583d337fb6310b80432b0f6922 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3427,7 +3427,7 @@ M:	Alexey Charkov <alchark@...il.com>
 M:	Krzysztof Kozlowski <krzk@...nel.org>
 L:	linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
 S:	Odd Fixes
-F:	Documentation/devicetree/bindings/i2c/i2c-wmt.txt
+F:	Documentation/devicetree/bindings/i2c/wm,wm8505-i2c.yaml
 F:	arch/arm/boot/dts/vt8500/
 F:	arch/arm/mach-vt8500/
 F:	drivers/clocksource/timer-vt8500.c

-- 
2.49.0