[PATCH v2 06/10] dt-bindings: rtc: Add bindings for Netronix embedded controller RTC

Jonathan Neuschäfer
2020-09-05T13:53:58Z

The Netronix EC implements an RTC with the following functionality:

- Calendar-based time keeping with single-second resolution
- Automatic power-on with single-minute resolution
- Alarm at single-second resolution

This binding only supports timekeeping for now.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---

v2:
- Add plaintext binding to the patch description, for reference

For reference, here is the binding in text form:

Netronix embedded controller RTC

Required properties:

- compatible: should be "netronix,ntxec-rtc"

Example:

embedded-controller@43 {
compatible = "netronix,ntxec";
...

rtc {
compatible = "netronix,ntxec-rtc";
};
}
---
.../bindings/mfd/netronix,ntxec.yaml | 7 +++++
.../bindings/rtc/netronix,ntxec-rtc.yaml | 27 +++++++++++++++++++
2 files changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.yaml

diff --git a/Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml b/Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml
index 73c873dda3e70..7e1a21a82d82b 100644
--- a/Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml
+++ b/Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml
@@ -34,6 +34,9 @@ properties:
pwm:
$ref: ../pwm/netronix,ntxec-pwm.yaml

+ rtc:
+ $ref: ../rtc/netronix,ntxec-rtc.yaml
+
required:
- compatible
- reg
@@ -61,6 +64,10 @@ examples:
compatible = "netronix,ntxec-pwm";
#pwm-cells = <2>;
};
+
+ rtc {
+ compatible = "netronix,ntxec-rtc";
+ };
};
};

diff --git a/Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.yaml b/Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.yaml
new file mode 100644
index 0000000000000..4b301ef7319c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/netronix,ntxec-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RTC functionality in Netronix embedded controller
+
+maintainers:
+ - Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+
+description: |
+ See also Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml
+
+ The Netronix EC contains an RTC, which can be used for time-keeping, alarm,
+ and automatic power-on. Note that not all of this functionality is currently
+ supported in this binding.
+
+allOf:
+ - $ref: "rtc.yaml#"
+
+properties:
+ compatible:
+ const: netronix,ntxec-rtc
+
+required:
+ - compatible
--
2.28.0