linux-kernel - Re: [PATCH 09/17] dt-bindings: interrupt-controller: Add support for Microchip LAN966x OIC

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Date: Tue, 7 May 2024 10:28:06 -0500
From: Rob Herring <robh@...nel.org>
To: Herve Codina <herve.codina@...tlin.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Lee Jones <lee@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Saravana Kannan <saravanak@...gle.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Lars Povlsen <lars.povlsen@...rochip.com>,
	Steen Hegelund <Steen.Hegelund@...rochip.com>,
	Daniel Machon <daniel.machon@...rochip.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	netdev@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Allan Nielsen <allan.nielsen@...rochip.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 09/17] dt-bindings: interrupt-controller: Add support for
 Microchip LAN966x OIC

On Tue, Apr 30, 2024 at 10:37:18AM +0200, Herve Codina wrote:
> The Microchip LAN966x outband interrupt controller (OIC) maps the
> internal interrupt sources of the LAN966x device to an external
> interrupt.
> When the LAN966x device is used as a PCI device, the external interrupt
> is routed to the PCI interrupt.
> 
> Signed-off-by: Herve Codina <herve.codina@...tlin.com>
> ---
>  .../microchip,lan966x-oic.yaml                | 55 +++++++++++++++++++
>  1 file changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml b/Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml
> new file mode 100644
> index 000000000000..b2adc7174177
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interrupt-controller/microchip,lan966x-oic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip LAN966x outband interrupt controller
> +
> +maintainers:
> +  - Herve Codina <herve.codina@...tlin.com>
> +
> +allOf:
> +  - $ref: /schemas/interrupt-controller.yaml#
> +
> +description: |
> +  The Microchip LAN966x outband interrupt controller (OIC) maps the internal
> +  interrupt sources of the LAN966x device to an external interrupt.
> +  When the LAN966x device is used as a PCI device, the external interrupt is
> +  routed to the PCI interrupt.
> +
> +properties:
> +  compatible:
> +    const: microchip,lan966x-oic
> +
> +  '#interrupt-cells':
> +    const: 2
> +
> +  interrupt-controller: true
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - '#interrupt-cells'
> +  - interrupt-controller
> +  - interrupts
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    interrupt-controller@...c0120 {
> +        compatible = "microchip,lan966x-oic";
> +        reg = <0xe00c0120 0x190>;

Looks like this is part of some larger block?

> +        #interrupt-cells = <2>;
> +        interrupt-controller;
> +        interrupts = <0>;
> +        interrupt-parent = <&intc>;
> +    };
> +...
> -- 
> 2.44.0
>