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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: interrupt-controller: Convert csky,mpintc to DT schema
Convert the C-SKY Multi-processor interrupt controller binding to schema
format. It's a straight-forward conversion of the typical interrupt
controller.
Link: https://lore.kernel.org/r/20250505144640.1288458-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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-52
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Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
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Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
···
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===========================================
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C-SKY Multi-processors Interrupt Controller
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===========================================
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C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
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SMP soc, and it also could be used in non-SMP system.
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Interrupt number definition:
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0-15 : software irq, and we use 15 as our IPI_IRQ.
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16-31 : private irq, and we use 16 as the co-processor timer.
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31-1024: common irq for soc ip.
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Interrupt trigger mode: (Defined in dt-bindings/interrupt-controller/irq.h)
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IRQ_TYPE_LEVEL_HIGH (default)
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IRQ_TYPE_LEVEL_LOW
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IRQ_TYPE_EDGE_RISING
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IRQ_TYPE_EDGE_FALLING
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=============================
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intc node bindings definition
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=============================
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Description: Describes SMP interrupt controller
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PROPERTIES
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- compatible
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Usage: required
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Value type: <string>
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Definition: must be "csky,mpintc"
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- #interrupt-cells
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Usage: required
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Value type: <u32>
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Definition: <2>
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- interrupt-controller:
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Usage: required
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Examples: ("interrupts = <irq_num IRQ_TYPE_XXX>")
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---------
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#include <dt-bindings/interrupt-controller/irq.h>
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intc: interrupt-controller {
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compatible = "csky,mpintc";
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#interrupt-cells = <2>;
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interrupt-controller;
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};
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device: device-example {
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...
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interrupts = <34 IRQ_TYPE_EDGE_RISING>;
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interrupt-parent = <&intc>;
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};
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Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.yaml
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Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.yaml
···
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# 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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$id: http://devicetree.org/schemas/interrupt-controller/csky,mpintc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: C-SKY Multi-processors Interrupt Controller
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maintainers:
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- Guo Ren <guoren@kernel.org>
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description: >
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C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
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SMP soc, and it also could be used in non-SMP system.
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+
16
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Interrupt number definition:
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0-15 : software irq, and we use 15 as our IPI_IRQ.
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16-31 : private irq, and we use 16 as the co-processor timer.
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31-1024: common irq for soc ip.
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properties:
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compatible:
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const: csky,mpintc
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'#interrupt-cells':
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const: 2
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interrupt-controller: true
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required:
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- compatible
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- "#interrupt-cells"
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- interrupt-controller
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additionalProperties: false
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examples:
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- |
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interrupt-controller {
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compatible = "csky,mpintc";
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#interrupt-cells = <2>;
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interrupt-controller;
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};