From: "Rob Herring (Arm)" <robh@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Cristian Birsan <cristian.birsan@microchip.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH] dt-bindings: interrupt-controller: Convert microchip,pic32mzda-evic to DT schema
Date: Mon, 5 May 2025 09:47:53 -0500 [thread overview]
Message-ID: <20250505144754.1291072-1-robh@kernel.org> (raw)
Convert the Microchip PIC32 interrupt controller binding to schema
format. It's a straight-forward conversion of the typical interrupt
controller.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
.../microchip,pic32-evic.txt | 67 -------------------
.../microchip,pic32mzda-evic.yaml | 60 +++++++++++++++++
2 files changed, 60 insertions(+), 67 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml
diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
deleted file mode 100644
index c3a1b37c4c35..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-Microchip PIC32 Interrupt Controller
-====================================
-
-The Microchip PIC32 contains an Enhanced Vectored Interrupt Controller (EVIC).
-It handles all internal and external interrupts. This controller exists outside
-of the CPU and is the arbitrator of all interrupts (including interrupts from
-the CPU itself) before they are presented to the CPU.
-
-External interrupts have a software configurable edge polarity. Non external
-interrupts have a type and polarity that is determined by the source of the
-interrupt.
-
-Required properties
--------------------
-
-- compatible: Should be "microchip,pic32mzda-evic"
-- reg: Specifies physical base address and size of register range.
-- interrupt-controller: Identifies the node as an interrupt controller.
-- #interrupt cells: Specifies the number of cells used to encode an interrupt
- source connected to this controller. The value shall be 2 and interrupt
- descriptor shall have the following format:
-
- <hw_irq irq_type>
-
- hw_irq - represents the hardware interrupt number as in the data sheet.
- irq_type - is used to describe the type and polarity of an interrupt. For
- internal interrupts use IRQ_TYPE_EDGE_RISING for non persistent interrupts and
- IRQ_TYPE_LEVEL_HIGH for persistent interrupts. For external interrupts use
- IRQ_TYPE_EDGE_RISING or IRQ_TYPE_EDGE_FALLING to select the desired polarity.
-
-Optional properties
--------------------
-- microchip,external-irqs: u32 array of external interrupts with software
- polarity configuration. This array corresponds to the bits in the INTCON
- SFR.
-
-Example
--------
-
-evic: interrupt-controller@1f810000 {
- compatible = "microchip,pic32mzda-evic";
- interrupt-controller;
- #interrupt-cells = <2>;
- reg = <0x1f810000 0x1000>;
- microchip,external-irqs = <3 8 13 18 23>;
-};
-
-Each device/peripheral must request its interrupt line with the associated type
-and polarity.
-
-Internal interrupt DTS snippet
-------------------------------
-
-device@1f800000 {
- ...
- interrupts = <113 IRQ_TYPE_LEVEL_HIGH>;
- ...
-};
-
-External interrupt DTS snippet
-------------------------------
-
-device@1f800000 {
- ...
- interrupts = <3 IRQ_TYPE_EDGE_RISING>;
- ...
-};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml
new file mode 100644
index 000000000000..74bfc42693f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32mzda-evic.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/microchip,pic32mzda-evic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PIC32 EVIC Interrupt Controller
+
+maintainers:
+ - Cristian Birsan <cristian.birsan@microchip.com>
+
+description: >
+ The Microchip PIC32 contains an Enhanced Vectored Interrupt Controller (EVIC).
+ It handles all internal and external interrupts. This controller exists
+ outside of the CPU and is the arbitrator of all interrupts (including
+ interrupts from the CPU itself) before they are presented to the CPU.
+
+ External interrupts have a software configurable edge polarity. Non external
+ interrupts have a type and polarity that is determined by the source of the
+ interrupt.
+
+properties:
+ compatible:
+ items:
+ - const: microchip,pic32mzda-evic
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+ microchip,external-irqs:
+ description:
+ External interrupts with software polarity configuration corresponding to
+ the INTCON SFR bits.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ interrupt-controller@1f810000 {
+ compatible = "microchip,pic32mzda-evic";
+ reg = <0x1f810000 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ microchip,external-irqs = <3 8 13 18 23>;
+ };
--
2.47.2
next reply other threads:[~2025-05-05 14:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-05 14:47 Rob Herring (Arm) [this message]
2025-05-08 15:11 ` [PATCH] dt-bindings: interrupt-controller: Convert microchip,pic32mzda-evic to DT schema Conor Dooley
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