linux-kernel - [PATCH 21/23] dt-bindings: interrupt-controller: Add support for Microchip LAN966x OIC

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Message-ID: <20240614173232.1184015-22-herve.codina@bootlin.com>
Date: Fri, 14 Jun 2024 19:32:22 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Matti Vaittinen <mazziesaccount@...il.com>,
	Herve Codina <herve.codina@...tlin.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Richard Weinberger <richard@....at>,
	Anton Ivanov <anton.ivanov@...bridgegreys.com>,
	Johannes Berg <johannes@...solutions.net>,
	Marc Zyngier <maz@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-um@...ts.infradead.org,
	Allan Nielsen <allan.nielsen@...rochip.com>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	Steen Hegelund <steen.hegelund@...rochip.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH 21/23] dt-bindings: interrupt-controller: Add support for Microchip LAN966x OIC

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>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
---
 .../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>;
+        #interrupt-cells = <2>;
+        interrupt-controller;
+        interrupts = <0>;
+        interrupt-parent = <&intc>;
+    };
+...
-- 
2.45.0