dt-bindings: serial: brcm,bcm6345-uart: convert to the json-schema

This helps validating DTS files.

Redundant generic descriptions (e.g. "The base address of the UART
register bank") were dropped and periph_clk was dropped from example as
not required.

Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20210829131927.13682-1-zajec5@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt b/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt
deleted file mode 100644 (file)
index 8b2b046..0000000
--- a/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-* BCM63xx UART
-
-Required properties:
-
-- compatible: "brcm,bcm6345-uart"
-
-- reg: The base address of the UART register bank.
-
-- interrupts: A single interrupt specifier.
-
-- clocks: Clock driving the hardware; used to figure out the baud rate
-  divisor.
-
-
-Optional properties:
-
-- clock-names: Should be "refclk".
-
-Example:
-
-       uart0: serial@14e00520 {
-               compatible = "brcm,bcm6345-uart";
-               reg = <0x14e00520 0x18>;
-               interrupt-parent = <&periph_intc>;
-               interrupts = <2>;
-               clocks = <&periph_clk>;
-               clock-names = "refclk";
-       };
-
-       clocks {
-               periph_clk: periph_clk@0 {
-                       compatible = "fixed-clock";
-                       #clock-cells = <0>;
-                       clock-frequency = <54000000>;
-               };
-       };

diff --git a/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.yaml b/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.yaml
new file mode 100644 (file)
index 0000000..a22285c
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/brcm,bcm6345-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM63xx UART
+
+maintainers:
+  - Rafał Miłecki <rafal@milecki.pl>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: brcm,bcm6345-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: refclk
+
+unevaluatedProperties: false
+
+required:
+  - reg
+  - interrupts
+  - clocks
+
+examples:
+  - |
+    serial@14e00520 {
+        compatible = "brcm,bcm6345-uart";
+        reg = <0x14e00520 0x18>;
+        interrupt-parent = <&periph_intc>;
+        interrupts = <2>;
+        clocks = <&periph_clk>;
+        clock-names = "refclk";
+    };