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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2024-03-26 22:58:05 +0300 |
|---|---|---|
| committer | Florian Fainelli <florian.fainelli@broadcom.com> | 2024-04-04 19:48:48 +0300 |
| commit | 2604f31693c886aacf41758b7bac2dd481673ad8 (patch) | |
| tree | 5553bc32cc68913cd7c12462a0dd0b9b1f01017f /Documentation/devicetree/bindings/gpio | |
| parent | 4cece764965020c22cff7665b18a012006359095 (diff) | |
| download | linux-2604f31693c886aacf41758b7bac2dd481673ad8.tar.xz | |
dt-bindings: arm: bcm: raspberrypi,bcm2835-firmware: Add gpio child node
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>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt b/Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt deleted file mode 100644 index ce97265e23ba..000000000000 --- a/Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt +++ /dev/null @@ -1,30 +0,0 @@ -Raspberry Pi GPIO expander - -The Raspberry Pi 3 GPIO expander is controlled by the VC4 firmware. The -firmware exposes a mailbox interface that allows the ARM core to control the -GPIO lines on the expander. - -The Raspberry Pi GPIO expander node must be a child node of the Raspberry Pi -firmware node. - -Required properties: - -- compatible : Should be "raspberrypi,firmware-gpio" -- gpio-controller : Marks the device node as a gpio controller -- #gpio-cells : Should be two. The first cell is the pin number, and - the second cell is used to specify the gpio polarity: - 0 = active high - 1 = active low - -Example: - -firmware: firmware-rpi { - compatible = "raspberrypi,bcm2835-firmware"; - mboxes = <&mailbox>; - - expgpio: gpio { - compatible = "raspberrypi,firmware-gpio"; - gpio-controller; - #gpio-cells = <2>; - }; -}; |