dt-bindings: i2c: brcmstb: Convert the BRCMSTB binding to a schema

Switch the DT binding to a YAML schema to enable the DT validation.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/brcm,brcmstb-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom STB BSC IIC Master Controller
+
+maintainers:
+  - Kamal Dasu <kdasu.kdev@gmail.com>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - brcm,brcmstb-i2c
+      - brcm,brcmper-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    maxItems: 1
+
+  clock-frequency:
+    enum:
+      - 46875
+      - 50000
+      - 93750
+      - 97500
+      - 187500
+      - 200000
+      - 375000
+      - 390000
+
+required:
+  - compatible
+  - reg
+  - clock-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+      bsca: i2c@f0406200 {
+          clock-frequency = <390000>;
+          compatible = "brcm,brcmstb-i2c";
+          interrupt-parent = <&irq0_intc>;
+          reg = <0xf0406200 0x58>;
+          interrupts = <0x18>;
+          interrupt-names = "upg_bsca";
+      };
+
+...

Documentation/devicetree/bindings/i2c/i2c-brcmstb.txt

-Broadcom stb bsc iic master controller
-
-Required properties:
-
-- compatible: should be "brcm,brcmstb-i2c" or "brcm,brcmper-i2c"
-- clock-frequency: 32-bit decimal value of iic master clock freqency in Hz
-		   valid values are 375000, 390000, 187500, 200000
-		   93750, 97500, 46875 and 50000
-- reg: specifies the base physical address and size of the registers
-
-Optional properties :
-
-- interrupts: specifies the interrupt number, the irq line to be used
-- interrupt-names: Interrupt name string
-
-Example:
-
-bsca: i2c@f0406200 {
-      clock-frequency = <390000>;
-      compatible = "brcm,brcmstb-i2c";
-      interrupt-parent = <&irq0_intc>;
-      reg = <0xf0406200 0x58>;
-      interrupts = <0x18>;
-      interrupt-names = "upg_bsca";
-};
-

MAINTAINERS

@@ -3431,7 +3431,7 @@ L:	linux-i2c@vger.kernel.org
 L:	bcm-kernel-feedback-list@broadcom.com
 S:	Supported
 F:	drivers/i2c/busses/i2c-brcmstb.c
-F:	Documentation/devicetree/bindings/i2c/i2c-brcmstb.txt
+F:	Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml
 
 BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER
 M:	Al Cooper <alcooperx@gmail.com>