Re: [PATCH v3 02/25] dt-bindings: clock: Add a binding for the RPi Firmware clocks

From: Stephen Boyd
Date: Fri May 29 2020 - 17:17:19 EST


Quoting Maxime Ripard (2020-05-27 08:44:58)
> The firmware 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>
> ---

Reviewed-by: Stephen Boyd <sboyd@xxxxxxxxxx>

> diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
> index cec540c052b6..b48ed875eb8e 100644
> --- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
> +++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
> @@ -22,6 +22,25 @@ properties:
> Phandle to the firmware device's Mailbox.
> (See: ../mailbox/mailbox.txt for more information)
>
> + clocks:
> + type: object
> +
> + properties:
> + compatible:
> + const: raspberrypi,firmware-clocks
> +
> + "#clock-cells":
> + const: 1
> + description: >

Just curious if this is the same as the | syntax? I haven't seen this
used before.

> + The argument is the ID of the clocks contained by the
> + firmware messages.
> +