Re: [PATCH v2 3/5] media: dt-bindings: media: Add binding for the Raspberry Pi HEVC decoder

[Rob Herring <robh@xxxxxxxxxx>]

On Thu, Feb 06, 2025 at 06:02:36PM +0000, Dave Stevenson wrote:
> Adds a binding for the HEVC decoder found on the BCM2711 / Raspberry Pi 4,
> and BCM2712 / Raspberry Pi 5.
> 
> Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
> ---
>  .../bindings/media/raspberrypi,hevc-dec.yaml       | 67 ++++++++++++++++++++++
>  1 file changed, 67 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/raspberrypi,hevc-dec.yaml b/Documentation/devicetree/bindings/media/raspberrypi,hevc-dec.yaml
> new file mode 100644
> index 000000000000..06db7004c765
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/raspberrypi,hevc-dec.yaml
> @@ -0,0 +1,67 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/raspberrypi,hevc-dec.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Raspberry Pi HEVC Decoder
> +
> +maintainers:
> +  - John Cox <john.cox@xxxxxxxxxxxxxxx>
> +  - Dom Cobley <dom@xxxxxxxxxxxxxxx>
> +  - Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
> +  - Raspberry Pi internal review list <kernel-list@xxxxxxxxxxxxxxx>
> +
> +description:
> +  The Raspberry Pi HEVC decoder is a hardware video decode accelerator block
> +  found in the BCM2711 and BCM2712 processors used on Raspberry Pi 4 and 5
> +  boards respectively.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - raspberrypi,hevc-dec

SoC specific compatible please. If they are 'the same' then 2712 can 
fallback to 2711.

> +
> +  reg:
> +    items:
> +      - description: The HEVC main register region
> +      - description: The Interrupt control register region
> +
> +  reg-names:
> +    items:
> +      - const: hevc
> +      - const: intc
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: The HEVC block clock
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - interrupts
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    video-codec@7eb10000 {
> +        compatible = "raspberrypi,hevc-dec";
> +        reg = <0x7eb00000 0x10000>, /* HEVC */
> +              <0x7eb10000 0x1000>;  /* INTC */
> +        reg-names = "hevc",
> +                    "intc";
> +
> +        interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
> +
> +        clocks = <&clk 0>;
> +    };
> +
> +...
> 
> -- 
> 2.34.1
>