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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/mediatek,mtk-cirq.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/mediatek,mtk-cirq.yaml | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,mtk-cirq.yaml b/Documentation/devicetree/bindings/interrupt-controller/mediatek,mtk-cirq.yaml new file mode 100644 index 000000000000..fdcb4d8db818 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,mtk-cirq.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/mediatek,mtk-cirq.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek System Interrupt Controller + +maintainers: + - Youlin Pei <youlin.pei@mediatek.com> + +description: + In MediaTek SoCs, the CIRQ is a low power interrupt controller designed to + work outside of MCUSYS which comprises with Cortex-Ax cores, CCI and GIC. + The external interrupts (outside MCUSYS) will feed through CIRQ and connect + to GIC in MCUSYS. When CIRQ is enabled, it will record the edge-sensitive + interrupts and generate a pulse signal to parent interrupt controller when + flush command is executed. With CIRQ, MCUSYS can be completely turned off + to improve the system power consumption without losing interrupts. + + +properties: + compatible: + items: + - enum: + - mediatek,mt2701-cirq + - mediatek,mt8135-cirq + - mediatek,mt8173-cirq + - mediatek,mt8192-cirq + - const: mediatek,mtk-cirq + + reg: + maxItems: 1 + + '#interrupt-cells': + const: 3 + + interrupt-controller: true + + mediatek,ext-irq-range: + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: First CIRQ interrupt + - description: Last CIRQ interrupt + description: + Identifies the range of external interrupts in different SoCs + +required: + - compatible + - reg + - '#interrupt-cells' + - interrupt-controller + - mediatek,ext-irq-range + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + cirq: interrupt-controller@10204000 { + compatible = "mediatek,mt2701-cirq", "mediatek,mtk-cirq"; + reg = <0x10204000 0x400>; + #interrupt-cells = <3>; + interrupt-controller; + interrupt-parent = <&sysirq>; + mediatek,ext-irq-range = <32 200>; + }; |