[PATCH v7 04/11] dt-bindings: gpio: add bindings for microchip mpfs gpio

conor.dooley
2022-02-14T13:56:33Z

From: Conor Dooley <conor.dooley@microchip.com>

Add device tree bindings for the gpio controller on
the Microchip PolarFire SoC.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
---
.../bindings/gpio/microchip,mpfs-gpio.yaml | 79 +++++++++++++++++++
1 file changed, 79 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml

diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
new file mode 100644
index 000000000000..110651eafa70
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/microchip,mpfs-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MPFS GPIO Controller Device Tree Bindings
+
+maintainers:
+ - Conor Dooley <conor.dooley@microchip.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - microchip,mpfs-gpio
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ Interrupt mapping, one per GPIO. Maximum 32 GPIOs.
+ minItems: 1
+ maxItems: 32
+
+ interrupt-controller: true
+
+ clocks:
+ maxItems: 1
+
+ "#gpio-cells":
+ const: 2
+
+ "#interrupt-cells":
+ const: 1
+
+ ngpios:
+ description:
+ The number of GPIOs available.
+ minimum: 1
+ maximum: 32
+ default: 32
+
+ gpio-controller: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#interrupt-cells"
+ - interrupt-controller
+ - "#gpio-cells"
+ - gpio-controller
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ gpio@20122000 {
+ compatible = "microchip,mpfs-gpio";
+ reg = <0x20122000 0x1000>;
+ clocks = <&clkcfg 25>;
+ interrupt-parent = <&plic>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupts = <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>,
+ <53>, <53>, <53>, <53>;
+ };
+...
--
2.35.1