From a9e13d8164f931106b51f6439119c765cea10940 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 13 Feb 2020 17:51:09 +0100 Subject: [PATCH 190/552] dt-bindings: clock: Add a binding for the RPi Firmware clocks 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 Cc: Stephen Boyd Cc: Rob Herring Cc: linux-clk@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard --- .../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 + +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>; + }; + +... -- 2.33.0