linux-kernel - [RFC PATCH v3 06/37] dt-bindings: Add binding for kalray,coolidge-itgen

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Message-ID: <20240722094226.21602-7-ysionneau@kalrayinc.com>
Date: Mon, 22 Jul 2024 11:41:17 +0200
From: ysionneau@...rayinc.com
To: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>, Rob
 Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor
 Dooley <conor+dt@...nel.org>, Jonathan Borne <jborne@...rayinc.com>, Julian
 Vetter <jvetter@...rayinc.com>, Yann Sionneau <ysionneau@...rayinc.com>
Cc: Jules Maselbas <jmaselbas@...v.net>, devicetree@...r.kernel.org
Subject: [RFC PATCH v3 06/37] dt-bindings: Add binding for
 kalray,coolidge-itgen

From: Yann Sionneau <ysionneau@...rayinc.com>

Add binding for Kalray Coolidge Interrupt Generator.

Co-developed-by: Jules Maselbas <jmaselbas@...v.net>
Signed-off-by: Jules Maselbas <jmaselbas@...v.net>
Signed-off-by: Yann Sionneau <ysionneau@...rayinc.com>
---

Notes:

V2 -> V3: Fixed bindings to adhere to dt-schema
---
 .../kalray,coolidge-itgen.yaml                | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/kalray,coolidge-itgen.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/kalray,coolidge-itgen.yaml b/Documentation/devicetree/bindings/interrupt-controller/kalray,coolidge-itgen.yaml
new file mode 100644
index 0000000000000..222cacb5cbea4
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/kalray,coolidge-itgen.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/kalray,coolidge-itgen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Kalray Coolidge SoC Interrupt Generator (ITGEN)
+
+maintainers:
+  - Jonathan Borne <jborne@...rayinc.com>
+  - Julian Vetter <jvetter@...rayinc.com>
+  - Yann Sionneau <ysionneau@...rayinc.com>
+
+description: |
+  The Interrupt Generator (ITGEN) is an interrupt controller block.
+  It's purpose is to convert IRQ lines coming from SoC peripherals into writes
+  on the AXI bus. The ITGEN intended purpose is to write into the APIC mailboxes.
+
+properties:
+  compatible:
+    const: kalray,coolidge-itgen
+
+  reg:
+    maxItems: 1
+
+  "#interrupt-cells":
+    const: 2
+    description: |
+      - 1st cell is for the IRQ number
+      - 2nd cell is for the trigger type as defined dt-bindings/interrupt-controller/irq.h
+
+  interrupt-controller: true
+
+  msi-parent: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - "#interrupt-cells"
+  - interrupt-controller
+  - msi-parent
+
+examples:
+  - |
+    itgen: interrupt-controller@...00000 {
+        compatible = "kalray,coolidge-itgen";
+        reg = <0 0x27000000 0 0x1104>;
+        #interrupt-cells = <2>;
+        interrupt-controller;
+        msi-parent = <&apic_mailbox>;
+    };
+
+...
-- 
2.45.2