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

ysionneau
2024-07-22T09:45:03Z

From: Yann Sionneau <ysionneau@kalrayinc.com>

Add binding for Kalray Coolidge Interrupt Generator.

Co-developed-by: Jules Maselbas <jmaselbas@zdiv.net>
Signed-off-by: Jules Maselbas <jmaselbas@zdiv.net>
Signed-off-by: Yann Sionneau <ysionneau@kalrayinc.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@kalrayinc.com>
+ - Julian Vetter <jvetter@kalrayinc.com>
+ - Yann Sionneau <ysionneau@kalrayinc.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@27000000 {
+ compatible = "kalray,coolidge-itgen";
+ reg = <0 0x27000000 0 0x1104>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ msi-parent = <&apic_mailbox>;
+ };
+
+...
--
2.45.2