[PATCH v6 12/14] dt-bindings: arm: airoha: Add binding for Airoha GPIO controller
From: Felix Fietkau <nbd@nbd.name>
Date: 2021-12-03 11:54:57
Also in:
linux-devicetree, linux-gpio, lkml
Subsystem:
gpio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: John Crispin <john@phrozen.org> Airoha's GPIO controller on their ARM EN7523 SoCs consists of two banks of 32 GPIOs Reviewed-by: Linus Walleij <redacted> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Felix Fietkau <nbd@nbd.name> --- .../bindings/gpio/airoha,en7523-gpio.yaml | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/airoha,en7523-gpio.yaml
diff --git a/Documentation/devicetree/bindings/gpio/airoha,en7523-gpio.yaml b/Documentation/devicetree/bindings/gpio/airoha,en7523-gpio.yaml
new file mode 100644
index 000000000000..66c00ec85731
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/airoha,en7523-gpio.yaml@@ -0,0 +1,67 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/airoha,en7523-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha EN7523 GPIO controller + +maintainers: + - John Crispin <john@phrozen.org> + +description: | + Airoha's GPIO controller on their ARM EN7523 SoCs consists of two banks of 32 + GPIOs. + +properties: + $nodename: + pattern: "^gpio@[0-9a-f]+$" + + compatible: + items: + - const: airoha,en7523-gpio + + reg: + description: | + The first tuple points to the input register. + The second and third tuple point to the direction registers + The fourth tuple points to the output register + maxItems: 4 + + "#gpio-cells": + const: 2 + + gpio-controller: true + +required: + - compatible + - reg + - "#gpio-cells" + - gpio-controller + +additionalProperties: false + +examples: + - | + gpio0: gpio@1fbf0200 { + compatible = "airoha,en7523-gpio"; + reg = <0x1fbf0204 0x4>, + <0x1fbf0200 0x4>, + <0x1fbf0220 0x4>, + <0x1fbf0214 0x4>; + gpio-controller; + #gpio-cells = <2>; + }; + + gpio1: gpio@1fbf0270 { + compatible = "airoha,en7523-gpio"; + reg = <0x1fbf0270 0x4>, + <0x1fbf0260 0x4>, + <0x1fbf0264 0x4>, + <0x1fbf0278 0x4>; + gpio-controller; + #gpio-cells = <2>; + }; + + +...
--
2.30.1
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