mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-04 18:49:41 +00:00
2604f31693
Unlike the other child nodes of the raspberrypi,bcm2835-firmware device,
the gpio child is documented in a legacy text-based binding in
gpio/raspberrypi,firmware-gpio.txt. This causes DT validation failures:
arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dtb: 'gpio' does not match any of the regexes: 'pinctrl-[0-9]+'
from schema $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
Convert the binding to YAML and move it to
raspberrypi,bcm2835-firmware.yaml.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Tested-by: Ivan T. Ivanov <iivanov@suse.de>
Link: https://lore.kernel.org/r/20240326195807.15163-2-laurent.pinchart@ideasonboard.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
140 lines
2.7 KiB
YAML
140 lines
2.7 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Raspberry Pi VideoCore firmware driver
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maintainers:
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- Eric Anholt <eric@anholt.net>
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- Stefan Wahren <wahrenst@gmx.net>
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select:
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properties:
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compatible:
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contains:
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const: raspberrypi,bcm2835-firmware
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required:
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- compatible
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properties:
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compatible:
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items:
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- const: raspberrypi,bcm2835-firmware
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- const: simple-mfd
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mboxes:
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maxItems: 1
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clocks:
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type: object
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additionalProperties: false
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properties:
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compatible:
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const: raspberrypi,firmware-clocks
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"#clock-cells":
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const: 1
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description: >
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The argument is the ID of the clocks contained by the
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firmware messages.
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required:
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- compatible
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- "#clock-cells"
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gpio:
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type: object
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additionalProperties: false
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properties:
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compatible:
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const: raspberrypi,firmware-gpio
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gpio-controller: true
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"#gpio-cells":
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const: 2
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description:
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The first cell is the pin number, and the second cell is used to
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specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW).
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gpio-line-names:
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minItems: 8
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required:
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- compatible
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- gpio-controller
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- "#gpio-cells"
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reset:
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type: object
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additionalProperties: false
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properties:
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compatible:
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const: raspberrypi,firmware-reset
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"#reset-cells":
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const: 1
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description: >
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The argument is the ID of the firmware reset line to affect.
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required:
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- compatible
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- "#reset-cells"
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pwm:
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type: object
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additionalProperties: false
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properties:
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compatible:
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const: raspberrypi,firmware-poe-pwm
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"#pwm-cells":
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# See pwm.yaml in this directory for a description of the cells format.
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const: 2
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required:
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- compatible
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- "#pwm-cells"
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required:
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- compatible
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- mboxes
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additionalProperties: false
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examples:
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- |
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firmware {
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compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
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mboxes = <&mailbox>;
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firmware_clocks: clocks {
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compatible = "raspberrypi,firmware-clocks";
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#clock-cells = <1>;
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};
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expgpio: gpio {
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compatible = "raspberrypi,firmware-gpio";
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gpio-controller;
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#gpio-cells = <2>;
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};
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reset: reset {
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compatible = "raspberrypi,firmware-reset";
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#reset-cells = <1>;
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};
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pwm: pwm {
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compatible = "raspberrypi,firmware-poe-pwm";
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#pwm-cells = <2>;
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};
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};
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...
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