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dt-bindings: interrupt-controller: Convert Amlogic Meson GPIO interrupt controller binding

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Convert Amlogic Meson GPIO interrupt controller binding to yaml.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/e06e9f26-cf55-5596-c799-d698e9d7b409@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Heiner Kallweit 2023-03-12 22:29:07 +01:00 committed by Neil Armstrong
parent 9e70e49474
commit 6b0139b372
2 changed files with 72 additions and 38 deletions
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38
Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
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Amlogic meson GPIO interrupt controller
Meson SoCs contains an interrupt controller which is able to watch the SoC
pads and generate an interrupt on edge or level. The controller is essentially
a 256 pads to 8 GIC interrupt multiplexer, with a filter block to select edge
or level and polarity. It does not expose all 256 mux inputs because the
documentation shows that the upper part is not mapped to any pad. The actual
number of interrupt exposed depends on the SoC.
Required properties:
- compatible : must have "amlogic,meson8-gpio-intc" and either
"amlogic,meson8-gpio-intc" for meson8 SoCs (S802) or
"amlogic,meson8b-gpio-intc" for meson8b SoCs (S805) or
"amlogic,meson-gxbb-gpio-intc" for GXBB SoCs (S905) or
"amlogic,meson-gxl-gpio-intc" for GXL SoCs (S905X, S912)
"amlogic,meson-axg-gpio-intc" for AXG SoCs (A113D, A113X)
"amlogic,meson-g12a-gpio-intc" for G12A SoCs (S905D2, S905X2, S905Y2)
"amlogic,meson-sm1-gpio-intc" for SM1 SoCs (S905D3, S905X3, S905Y3)
"amlogic,meson-a1-gpio-intc" for A1 SoCs (A113L)
"amlogic,meson-s4-gpio-intc" for S4 SoCs (S802X2, S905Y4, S805X2G, S905W2)
- reg : Specifies base physical address and size of the registers.
- interrupt-controller : Identifies the node as an interrupt controller.
- #interrupt-cells : Specifies the number of cells needed to encode an
interrupt source. The value must be 2.
- meson,channel-interrupts: Array with the 8 upstream hwirq numbers. These
are the hwirqs used on the parent interrupt controller.
Example:
gpio_interrupt: interrupt-controller@9880 {
compatible = "amlogic,meson-gxbb-gpio-intc",
"amlogic,meson-gpio-intc";
reg = <0x0 0x9880 0x0 0x10>;
interrupt-controller;
#interrupt-cells = <2>;
meson,channel-interrupts = <64 65 66 67 68 69 70 71>;
};

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Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interrupt-controller/amlogic,meson-gpio-intc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Amlogic Meson GPIO interrupt controller
maintainers:
- Heiner Kallweit <hkallweit1@gmail.com>
description: |
Meson SoCs contains an interrupt controller which is able to watch the SoC
pads and generate an interrupt on edge or level. The controller is essentially
a 256 pads to 8 or 12 GIC interrupt multiplexer, with a filter block to select
edge or level and polarity. It does not expose all 256 mux inputs because the
documentation shows that the upper part is not mapped to any pad. The actual
number of interrupts exposed depends on the SoC.
allOf:
- $ref: /schemas/interrupt-controller.yaml#
properties:
compatible:
oneOf:
- const: amlogic,meson-gpio-intc
- items:
- enum:
- amlogic,meson8-gpio-intc
- amlogic,meson8b-gpio-intc
- amlogic,meson-gxbb-gpio-intc
- amlogic,meson-gxl-gpio-intc
- amlogic,meson-axg-gpio-intc
- amlogic,meson-g12a-gpio-intc
- amlogic,meson-sm1-gpio-intc
- amlogic,meson-a1-gpio-intc
- amlogic,meson-s4-gpio-intc
- const: amlogic,meson-gpio-intc
reg:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 2
amlogic,channel-interrupts:
description: Array with the upstream hwirq numbers
minItems: 8
maxItems: 12
$ref: /schemas/types.yaml#/definitions/uint32-array
required:
- compatible
- reg
- interrupt-controller
- "#interrupt-cells"
- amlogic,channel-interrupts
additionalProperties: false
examples:
- |
interrupt-controller@9880 {
compatible = "amlogic,meson-gxbb-gpio-intc",
"amlogic,meson-gpio-intc";
reg = <0x9880 0x10>;
interrupt-controller;
#interrupt-cells = <2>;
amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>;
};