Add DT bindings for Microchip External Interrupt Controller. Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx> --- .../interrupt-controller/mchp,eic.yaml | 74 +++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml b/Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml new file mode 100644 index 000000000000..5a927817aa7d --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/mchp,eic.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip External Interrupt Controller + +maintainers: + - Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx> + +description: + This interrupt controller is found in Microchip SoCs (SAMA7G5) and provides + support for handling up to 2 external interrupt lines. + +properties: + compatible: + enum: + - microchip,sama7g5-eic + + reg: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 3 + description: + The first cell is the input IRQ number (between 0 and 1), the second cell + is the trigger type as defined in interrupt.txt present in this directory + and the third cell is the glitch filter (1, 2, 4, 8) in clock cycles + + 'interrupts': + description: | + Contains the GIC SPI IRQs mapped to the external interrupt lines. They + should be specified sequentially from output 0 to output 1. + minItems: 2 + maxItems: 2 + + clocks: + maxItems: 1 + + clock-names: + const: pclk + +required: + - compatible + - reg + - interrupt-controller + - '#interrupt-cells' + - 'interrupts' + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/at91.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + eic: eic@e1628000 { + compatible = "microchip,sama7g5-eic"; + reg = <0xe1628000 0x100>; + interrupt-parent = <&gic>; + interrupt-controller; + #interrupt-cells = <3>; + interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&pmc PMC_TYPE_PERIPHERAL 37>; + clock-names = "pclk"; + }; + +... -- 2.25.1
