[PATCH 3/3] dt-bindings: rtc: ti,omap-rtc: Convert to DT schema

Convert the Texas Instruments OMAP Real Time Clock (RTC) binding from
the legacy text format to the DT schema. Mark 'ti,hwmods' as deprecated
as it is no longer used, it is kept to support legacy boards.

Signed-off-by: Bhargav Joshi <[email protected]>
---
 .../devicetree/bindings/rtc/ti,omap-rtc.yaml       | 129 +++++++++++++++++++++
 1 file changed, 129 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/ti,omap-rtc.yaml b/Documentation/devicetree/bindings/rtc/ti,omap-rtc.yaml
new file mode 100644
index 000000000000..eeea1bab6530
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/ti,omap-rtc.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/ti,omap-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments OMAP Real Time Clock
+
+maintainers:
+  - Keerthy <[email protected]>
+  - Afzal Mohammed <[email protected]>
+
+description:
+  The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock with
+  century-range alarm matching, driven by the 32kHz clock.
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: ti,da830-rtc
+      - const: ti,am3352-rtc
+      - items:
+          - const: ti,am3352-rtc
+          - const: ti,da830-rtc
+      - items:
+          - const: ti,am4372-rtc
+          - const: ti,am3352-rtc
+          - const: ti,da830-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 2
+    maxItems: 2
+
+  system-power-controller:
+    type: boolean
+    description:
+      Indicates that this RTC controls system power via the pmic_power_en pin.
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    oneOf:
+      - items:
+          - const: ext-clk
+          - const: int-clk
+      - items:
+          - const: ext-clk
+      - items:
+          - const: int-clk
+
+  pinctrl-0:
+    description:
+      Phandle to pin configuration for the external wakeup pins.
+
+  pinctrl-names:
+    minItems: 1
+
+  ti,hwmods:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      Name of the hwmod associated with the RTC.
+    const: rtc
+    deprecated: true
+
+patternProperties:
+  "^ext-wakeup(-[0-9]+)?$":
+    type: object
+
+    description:
+      Child node describing external wakeup pin configuration.
+
+    properties:
+      pins:
+        enum:
+          - ext_wakeup0
+          - ext_wakeup1
+          - ext_wakeup2
+          - ext_wakeup3
+
+      input-enable:
+        type: boolean
+        description:
+          Enables the external wakeup input on the selected pin.
+
+      ti,active-high:
+        type: boolean
+        description:
+          Sets the wakeup input polarity to active high. By default the
+          input is active low.
+
+    required:
+      - pins
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    rtc@23000 {
+        compatible = "ti,da830-rtc";
+        reg = <0x23000 0x1000>;
+        interrupts = <19>, <19>;
+        system-power-controller;
+        clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
+        clock-names = "ext-clk", "int-clk";
+
+        pinctrl-0 = <&ext_wakeup>;
+        pinctrl-names = "default";
+
+        ext-wakeup {
+            pins = "ext_wakeup0";
+            input-enable;
+            ti,active-high;
+        };
+    };

-- 
2.55.0