linux-kernel - [PATCH V4 1/2] dt-bindings: rtc: Add TI K3 RTC description

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Message-ID: <20220623170808.20998-2-nm@ti.com>
Date:   Thu, 23 Jun 2022 12:08:07 -0500
From:   Nishanth Menon <nm@...com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Alessandro Zummo <a.zummo@...ertech.it>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-rtc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Andrew Davis <afd@...com>, Nishanth Menon <nm@...com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH V4 1/2] dt-bindings: rtc: Add TI K3 RTC description

This adds the documentation for the devicetree bindings of the Texas
Instruments RTC modules on K3 family of SoCs such as AM62x SoCs or
newer.

Signed-off-by: Nishanth Menon <nm@...com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
Changes since V3:
* pickedup Krzysztof's reviewed-by

V3: https://lore.kernel.org/all/20220513194457.25942-2-nm@ti.com/
V2: https://lore.kernel.org/all/20220511002600.27964-2-nm@ti.com/
V1: https://lore.kernel.org/all/20220412073138.25027-2-nm@ti.com/
 .../devicetree/bindings/rtc/ti,k3-rtc.yaml    | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml

diff --git a/Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml b/Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml
new file mode 100644
index 000000000000..d995ef04a6eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/ti,k3-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments K3 Real Time Clock
+
+maintainers:
+  - Nishanth Menon <nm@...com>
+
+description: |
+  This RTC appears in the AM62x family of SoCs.
+
+allOf:
+  - $ref: "rtc.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - ti,am62-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: VBUS Interface clock
+      - description: 32k Clock source (external or internal).
+
+  clock-names:
+    items:
+      - const: vbus
+      - const: osc32k
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    rtc@...f0000 {
+        compatible = "ti,am62-rtc";
+        reg = <0x2b1f0000 0x100>;
+        interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+        power-domains = <&bar 0>;
+        clocks = <&foo 0>, <&foo 1>;
+        clock-names = "vbus", "osc32k";
+        wakeup-source;
+    };
-- 
2.31.1