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Subject[PATCH 1/2] dt-bindings: mchp-eic: add bindings
Date
Add DT bindings for Microchip External Interrupt Controller.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
.../interrupt-controller/mchp,eic.yaml | 74 +++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml b/Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml
new file mode 100644
index 000000000000..5a927817aa7d
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/mchp,eic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip External Interrupt Controller
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+ This interrupt controller is found in Microchip SoCs (SAMA7G5) and provides
+ support for handling up to 2 external interrupt lines.
+
+properties:
+ compatible:
+ enum:
+ - microchip,sama7g5-eic
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 3
+ description:
+ The first cell is the input IRQ number (between 0 and 1), the second cell
+ is the trigger type as defined in interrupt.txt present in this directory
+ and the third cell is the glitch filter (1, 2, 4, 8) in clock cycles
+
+ 'interrupts':
+ description: |
+ Contains the GIC SPI IRQs mapped to the external interrupt lines. They
+ should be specified sequentially from output 0 to output 1.
+ minItems: 2
+ maxItems: 2
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: pclk
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+ - 'interrupts'
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/at91.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ eic: eic@e1628000 {
+ compatible = "microchip,sama7g5-eic";
+ reg = <0xe1628000 0x100>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 37>;
+ clock-names = "pclk";
+ };
+
+...
--
2.25.1
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