The firmare running on the RPi VideoCore can be used to discover and change the various clocks running in the BCM2711. Since devices will need to use them through the DT, let's add a pretty simple binding. Cc: Michael Turquette <mturquette@xxxxxxxxxxxx> Cc: Stephen Boyd <sboyd@xxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: linux-clk@xxxxxxxxxxxxxxx Cc: devicetree@xxxxxxxxxxxxxxx Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> --- Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml diff --git a/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml b/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml new file mode 100644 index 000000000000..d37bc311321d --- /dev/null +++ b/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/raspberrypi,firmware-clocks.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RaspberryPi Firmware Clocks Device Tree Bindings + +maintainers: + - Maxime Ripard <mripard@xxxxxxxxxx> + +properties: + "#clock-cells": + const: 1 + + compatible: + const: raspberrypi,firmware-clocks + + raspberrypi,firmware: + $ref: /schemas/types.yaml#/definitions/phandle + description: > + Phandle to the mailbox node to communicate with the firmware. + +required: + - "#clock-cells" + - compatible + - raspberrypi,firmware + +additionalProperties: false + +examples: + - | + firmware_clocks: firmware-clocks { + compatible = "raspberrypi,firmware-clocks"; + raspberrypi,firmware = <&firmware>; + #clock-cells = <1>; + }; + +... -- git-series 0.9.1
