diff options
| author | Akhilesh Patil <akhilesh@ee.iitb.ac.in> | 2025-09-20 20:31:24 +0530 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2026-06-24 22:55:02 +0200 |
| commit | b70598b3769ea64978e76601d1824a12de556da1 (patch) | |
| tree | 69c64d1b22a1ad2ae8e91d6dde02406c94e753d4 /Documentation | |
| parent | 18d39c71e3171eeb7296cb288bbac48a89a7cf4b (diff) | |
dt-bindings: rtc: Add ST m41t93
Document DT bindings for m41t93 rtc which supports time, date,
alarm, watchdog, square wave clock output provider, user sram
and 8 bit timer.
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/b1b1f7abde8a4ee8b625361bca32934679bf1e1a.1758379856.git.akhilesh@ee.iitb.ac.in
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/st,m41t93.yaml | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/st,m41t93.yaml b/Documentation/devicetree/bindings/rtc/st,m41t93.yaml new file mode 100644 index 000000000000..bdd995c5c1f4 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/st,m41t93.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/st,m41t93.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ST M41T93 RTC and compatible + +maintainers: + - Akhilesh Patil <akhilesh@ee.iitb.ac.in> + +description: + ST M41T93 is spi based Real Time Clock (RTC) with time, date, + alarm, watchdog, square wave clock output, 8 bit timer and + 7 bytes of user SRAM. + +properties: + compatible: + enum: + - st,m41t93 + + reg: + maxItems: 1 + + "#clock-cells": + const: 0 + +required: + - compatible + - reg + +allOf: + - $ref: rtc.yaml + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + rtc@0 { + compatible = "st,m41t93"; + reg = <0>; + #clock-cells = <0>; + spi-max-frequency = <2000000>; + }; + }; + |