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The mapping of EXTI events to its parent interrupt controller is both SoC and instance dependent. The current implementation requires adding a new mapping table to the driver's code and a new compatible for each new EXTI instance. To avoid that use the interrupts-extended property to list, for each EXTI event, the associated parent interrupt. Co-developed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20240415134926.1254428-3-antonio.borneo@foss.st.com
116 lines
2.5 KiB
YAML
116 lines
2.5 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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$id: http://devicetree.org/schemas/interrupt-controller/st,stm32-exti.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: STM32 External Interrupt Controller
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maintainers:
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- Alexandre Torgue <alexandre.torgue@foss.st.com>
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- Ludovic Barre <ludovic.barre@foss.st.com>
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- st,stm32-exti
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- st,stm32h7-exti
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- items:
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- enum:
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- st,stm32mp1-exti
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- st,stm32mp13-exti
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- const: syscon
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"#interrupt-cells":
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const: 2
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reg:
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maxItems: 1
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interrupt-controller: true
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hwlocks:
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maxItems: 1
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description:
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Reference to a phandle of a hardware spinlock provider node.
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interrupts:
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minItems: 1
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maxItems: 96
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description:
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Interrupts references to primary interrupt controller
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required:
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- "#interrupt-cells"
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- compatible
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- reg
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- interrupt-controller
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allOf:
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- $ref: /schemas/interrupt-controller.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- st,stm32-exti
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then:
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properties:
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interrupts:
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minItems: 1
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maxItems: 32
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required:
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- interrupts
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- if:
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properties:
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compatible:
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contains:
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enum:
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- st,stm32h7-exti
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then:
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properties:
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interrupts:
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minItems: 1
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maxItems: 96
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required:
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- interrupts
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additionalProperties: false
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examples:
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- |
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//Example 1
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exti1: interrupt-controller@5000d000 {
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compatible = "st,stm32mp1-exti", "syscon";
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x5000d000 0x400>;
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};
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- |
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//Example 2
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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exti2: interrupt-controller@5000d000 {
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compatible = "st,stm32mp1-exti", "syscon";
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x5000d000 0x400>;
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interrupts-extended =
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<&intc GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
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<0>,
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<&intc GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
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};
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- |
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//Example 3
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exti3: interrupt-controller@40013c00 {
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compatible = "st,stm32-exti";
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x40013C00 0x400>;
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interrupts = <1>, <2>, <3>, <6>, <7>, <8>, <9>, <10>, <23>, <40>, <41>, <42>, <62>, <76>;
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};
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...
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