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Subject[PATCH] dt-bindings: rtc: Add Arm PL031 schema
Date
The PL031 RTC binding has been in use for a long time, but never got
documented. Fortunately, it's simple and existing users are consistent.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/rtc/arm,pl031.yaml | 56 +++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/arm,pl031.yaml

diff --git a/Documentation/devicetree/bindings/rtc/arm,pl031.yaml b/Documentation/devicetree/bindings/rtc/arm,pl031.yaml
new file mode 100644
index 000000000000..77452c9e9b63
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/arm,pl031.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/arm,pl031.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Primecell PL031 Real Time Clock
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,pl031
+ required:
+ - compatible
+
+allOf:
+ - $ref: rtc.yaml#
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+properties:
+ compatible:
+ items:
+ - const: arm,pl031
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ rtc@10017000 {
+ compatible = "arm,pl031", "arm,primecell";
+ reg = <0x10017000 0x1000>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ };
--
2.27.0
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