On Tue, Mar 02, 2021 at 12:28:45PM +0200, Claudiu Beznea wrote:
> Add DT bindings for Microchip External Interrupt Controller.
>
> Signed-off-by: Claudiu Beznea <claudiu.beznea at microchip.com>
> ---
> .../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 at microchip.com>
> +
> +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':
Don't need quotes here.
> + 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'
Or here.
> + - clocks
> + - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/at91.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + eic: eic at e1628000 {
interrupt-controller at ...
> + 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
>