linux-kernel - [PATCH] dt-bindings: serial: vt8500-uart: convert to json-schema

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Message-ID: <20240611121048.225887-1-kanakshilledar@gmail.com>
Date: Tue, 11 Jun 2024 17:40:43 +0530
From: Kanak Shilledar <kanakshilledar@...il.com>
To: 
Cc: Kanak Shilledar <kanakshilledar@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Kanak Shilledar <kanakshilledar111@...tonmail.com>,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH] dt-bindings: serial: vt8500-uart: convert to json-schema

Convert the VIA VT8500 and WonderMedia WM8xxx UART Controller to
newer DT schema. Created DT schema based on the .txt file which had
`compatible`, `reg`, `interrupts` and `clocks` as required properties.

Additions to the original binding
- changed the file name from vt8500-uart to via,vt8500-uart.yaml
- removed unnecessary alias from the example.
- added Greg and Jiri as maintainers (referred MAINTAINERS file).

Signed-off-by: Kanak Shilledar <kanakshilledar@...il.com>
---
 .../bindings/serial/via,vt8500-uart.yaml      | 52 +++++++++++++++++++
 .../bindings/serial/vt8500-uart.txt           | 27 ----------
 2 files changed, 52 insertions(+), 27 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/serial/via,vt8500-uart.yaml
 delete mode 100644 Documentation/devicetree/bindings/serial/vt8500-uart.txt

diff --git a/Documentation/devicetree/bindings/serial/via,vt8500-uart.yaml b/Documentation/devicetree/bindings/serial/via,vt8500-uart.yaml
new file mode 100644
index 000000000000..b38925ab23a1
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/via,vt8500-uart.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/via,vt8500-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VIA VT8500 and WonderMedia WM8xxx UART Controller
+
+maintainers:
+  - Greg Kroah-Hartman <gregkh@...uxfoundation.org>
+  - Jiri Slaby <jirislaby@...nel.org>
+  - Kanak Shilledar <kanakshilledar111@...tonmail.com>
+
+allOf:
+  - $ref: serial.yaml
+
+properties:
+  compatible:
+    enum:
+      - via,vt8500-uart
+      - wm,wm8880-uart
+
+    description: |
+      Should be "via,vt8500-uart" (for VIA/WonderMedia chips up to and
+      including WM8850/WM8950), or "wm,wm8880-uart" (for WM8880 and later)
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - interrupts
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    serial@...00000 {
+        compatible = "via,vt8500-uart";
+        reg = <0xd8200000 0x1040>;
+        interrupts = <32>;
+        clocks = <&clkuart0>;
+    };
diff --git a/Documentation/devicetree/bindings/serial/vt8500-uart.txt b/Documentation/devicetree/bindings/serial/vt8500-uart.txt
deleted file mode 100644
index 2b64e6107fb3..000000000000
--- a/Documentation/devicetree/bindings/serial/vt8500-uart.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-* VIA VT8500 and WonderMedia WM8xxx UART Controller
-
-Required properties:
-- compatible: should be "via,vt8500-uart" (for VIA/WonderMedia chips up to and
-	including WM8850/WM8950), or "wm,wm8880-uart" (for WM8880 and later)
-
-- reg: base physical address of the controller and length of memory mapped
-	region.
-
-- interrupts: hardware interrupt number
-
-- clocks: shall be the input parent clock phandle for the clock. This should
-	be the 24Mhz reference clock.
-
-Aliases may be defined to ensure the correct ordering of the uarts.
-
-Example:
-	aliases {
-		serial0 = &uart0;
-	};
-
-	uart0: serial@...00000 {
-		compatible = "via,vt8500-uart";
-		reg = <0xd8200000 0x1040>;
-		interrupts = <32>;
-		clocks = <&clkuart0>;
-	};
-- 
2.45.2