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dt-bindings: gpio: tegra: Convert to json-schema
Convert the NVIDIA Tegra GPIO controller device tree bindings from
free-form text format to json-schema.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
authored by
Thierry Reding
and committed by
Bartosz Golaszewski
40dc2270
34d9841b
+110
-40
-40
Documentation/devicetree/bindings/gpio/nvidia,tegra20-gpio.txt
-40
Documentation/devicetree/bindings/gpio/nvidia,tegra20-gpio.txt
···
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NVIDIA Tegra GPIO controller
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-
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Required properties:
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- compatible : "nvidia,tegra<chip>-gpio"
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- reg : Physical base address and length of the controller's registers.
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- interrupts : The interrupt outputs from the controller. For Tegra20,
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there should be 7 interrupts specified, and for Tegra30, there should
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be 8 interrupts specified.
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- #gpio-cells : Should be two. The first cell is the pin number and the
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second cell is used to specify optional parameters:
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- bit 0 specifies polarity (0 for normal, 1 for inverted)
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- gpio-controller : Marks the device node as a GPIO controller.
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- #interrupt-cells : Should be 2.
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The first cell is the GPIO number.
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The second cell is used to specify flags:
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bits[3:0] trigger type and level flags:
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1 = low-to-high edge triggered.
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2 = high-to-low edge triggered.
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4 = active high level-sensitive.
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8 = active low level-sensitive.
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Valid combinations are 1, 2, 3, 4, 8.
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- interrupt-controller : Marks the device node as an interrupt controller.
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-
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Example:
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gpio: gpio@6000d000 {
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compatible = "nvidia,tegra20-gpio";
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reg = < 0x6000d000 0x1000 >;
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interrupts = < 0 32 0x04
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0 33 0x04
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0 34 0x04
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0 35 0x04
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0 55 0x04
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0 87 0x04
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0 89 0x04 >;
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#gpio-cells = <2>;
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gpio-controller;
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#interrupt-cells = <2>;
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interrupt-controller;
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};
+110
Documentation/devicetree/bindings/gpio/nvidia,tegra20-gpio.yaml
+110
Documentation/devicetree/bindings/gpio/nvidia,tegra20-gpio.yaml
···
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+
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/gpio/nvidia,tegra20-gpio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NVIDIA Tegra GPIO Controller (Tegra20 - Tegra210)
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maintainers:
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- Thierry Reding <thierry.reding@gmail.com>
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- Jon Hunter <jonathanh@nvidia.com>
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properties:
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compatible:
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oneOf:
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- enum:
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- nvidia,tegra20-gpio
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- nvidia,tegra30-gpio
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+
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- items:
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- enum:
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- nvidia,tegra114-gpio
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- nvidia,tegra124-gpio
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- nvidia,tegra210-gpio
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- const: nvidia,tegra30-gpio
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reg:
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maxItems: 1
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interrupts:
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description: The interrupt outputs from the controller. For Tegra20,
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there should be 7 interrupts specified, and for Tegra30, there should
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be 8 interrupts specified.
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"#gpio-cells":
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description: The first cell is the pin number and the second cell is used
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to specify the GPIO polarity (0 = active high, 1 = active low).
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const: 2
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gpio-controller: true
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gpio-ranges:
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maxItems: 1
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"#interrupt-cells":
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description: |
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Should be 2. The first cell is the GPIO number. The second cell is
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used to specify flags:
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bits[3:0] trigger type and level flags:
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1 = low-to-high edge triggered.
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2 = high-to-low edge triggered.
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4 = active high level-sensitive.
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8 = active low level-sensitive.
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Valid combinations are 1, 2, 3, 4, 8.
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const: 2
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interrupt-controller: true
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: nvidia,tegra30-gpio
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then:
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properties:
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interrupts:
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minItems: 8
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maxItems: 8
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else:
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properties:
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interrupts:
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minItems: 7
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maxItems: 7
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+
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required:
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- compatible
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- reg
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- interrupts
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- "#gpio-cells"
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- gpio-controller
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- "#interrupt-cells"
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- interrupt-controller
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additionalProperties:
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type: object
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required:
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- gpio-hog
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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gpio: gpio@6000d000 {
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compatible = "nvidia,tegra20-gpio";
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reg = <0x6000d000 0x1000>;
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interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
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#gpio-cells = <2>;
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gpio-controller;
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#interrupt-cells = <2>;
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interrupt-controller;
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};