48 lines
1.2 KiB
YAML
48 lines
1.2 KiB
YAML
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# Copyright (c) 2023 Bjarki Arge Andreasen
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# SPDX-License-Identifier: Apache-2.0
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description: |
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Atmel SAM SUPC (Supply-Controller) controller
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The supply controller manages the voltage reference, power supply and supply
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monitoring of the device. It have a special feature that it can wake-up the
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device from a low-power state using special peripherals as wake-up sources.
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The dedicated peripherals that can wake-up the core supply domain are: RTC,
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RTT, Supply Monitor and GPIOs. In the first three peripherals it is necessary
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inform the wakeup-source-id property on their respective nodes.
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rtc: rtc@xxx {
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...
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wakeup-source-id = <&supc SUPC_WAKEUP_SOURCE_RTC>;
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...
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};
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The special peripheral will wake-up the device only when the standard property
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wakeup-source is defined, e.g.:
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&rtc {
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...
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wakeup-source;
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...
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};
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The SUPC wakeup source ids that can be enabled are defined in the
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zephyr/include/zephyr/dt-bindings/power/atmel_sam_supc.h header file.
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compatible: "atmel,sam-supc"
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include:
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- name: base.yaml
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properties:
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reg:
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required: true
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"#wakeup-source-id-cells":
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type: int
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const: 1
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wakeup-source-id-cells:
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- wakeup-source-id
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