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| author | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2021-01-18 15:32:42 +0300 |
|---|---|---|
| committer | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2021-03-22 19:59:52 +0300 |
| commit | a953e68ef2df657d8b65e16370e5808ec5819f23 (patch) | |
| tree | 5e34750b0a83b09ea3ebca7073455cc233881654 /Documentation/devicetree/bindings/arm/bcm | |
| parent | 3b8ddff780b7d12e99ae39177f84b9003097777a (diff) | |
| download | linux-a953e68ef2df657d8b65e16370e5808ec5819f23.tar.xz | |
dt-bindings: pwm: Add binding for RPi firmware PWM bus
The PWM bus controlling the fan in RPi's official PoE hat can only be
controlled by the board's co-processor.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/bcm')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml index a2c63c8b1d10..e3664eab0f6a 100644 --- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml +++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml @@ -64,6 +64,21 @@ properties: - compatible - "#reset-cells" + pwm: + type: object + + properties: + compatible: + const: raspberrypi,firmware-poe-pwm + + "#pwm-cells": + # See pwm.yaml in this directory for a description of the cells format. + const: 2 + + required: + - compatible + - "#pwm-cells" + additionalProperties: false required: @@ -87,5 +102,10 @@ examples: compatible = "raspberrypi,firmware-reset"; #reset-cells = <1>; }; + + pwm: pwm { + compatible = "raspberrypi,firmware-poe-pwm"; + #pwm-cells = <2>; + }; }; ... |