02ec75edaa
access-controllers is an optional property that allows a peripheral to refer to one or more domain access controller(s). Description of this property is added to all peripheral binding files of the peripheral under the STM32 firewall controller. It allows an accurate representation of the hardware, where various peripherals are connected to a firewall bus. The firewall can then check the peripheral accesses before allowing its device to probe. Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
58 lines
1.2 KiB
YAML
58 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/st,stm32-vrefbuf.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: STMicroelectronics STM32 Voltage reference buffer
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description: |
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Some STM32 devices embed a voltage reference buffer which can be used as
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voltage reference for ADCs, DACs and also as voltage reference for external
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components through the dedicated VREF+ pin.
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maintainers:
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- Fabrice Gasnier <fabrice.gasnier@foss.st.com>
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allOf:
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- $ref: regulator.yaml#
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properties:
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compatible:
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const: st,stm32-vrefbuf
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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vdda-supply:
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description: phandle to the vdda input analog voltage.
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access-controllers:
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minItems: 1
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maxItems: 2
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required:
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- compatible
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- reg
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- clocks
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- vdda-supply
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/stm32mp1-clks.h>
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vrefbuf@50025000 {
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compatible = "st,stm32-vrefbuf";
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reg = <0x50025000 0x8>;
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <2500000>;
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clocks = <&rcc VREF>;
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vdda-supply = <&vdda>;
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};
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...
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