Re: [PATCH v4 7/9] media: dt-bindings: Add bindings for Raspberry Pi PiSP Back End

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Hi Jacopo,

On Fri, 8 Mar 2024 at 08:50, Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> wrote:
>
> Add bindings for the Raspberry Pi PiSP Back End memory-to-memory image
> signal processor.
>
> Datasheet:
> https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf
>
> Signed-off-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

Reviewed-by: Naushir Patuck <naush@xxxxxxxxxxxxxxx>

> ---
> v3->v4:
> - Drop 'clock-names' as we have been confirmed there's a single clock
>
> v2->v3:
> - Add back 'clock-names' as suggested by Laurent
> - Add Rob's ack
> - minor grammar/style fixes
> ---
>  .../bindings/media/raspberrypi,pispbe.yaml    | 63 +++++++++++++++++++
>  1 file changed, 63 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml b/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
> new file mode 100644
> index 000000000000..1fc62a1d8eda
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/raspberrypi,pispbe.yaml
> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/raspberrypi,pispbe.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Raspberry Pi PiSP Image Signal Processor (ISP) Back End
> +
> +maintainers:
> +  - Raspberry Pi Kernel Maintenance <kernel-list@xxxxxxxxxxxxxxx>
> +  - Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
> +
> +description: |
> +  The Raspberry Pi PiSP Image Signal Processor (ISP) Back End is an image
> +  processor that fetches images in Bayer or Grayscale format from DRAM memory
> +  in tiles and produces images consumable by applications.
> +
> +  The full ISP documentation is available at
> +  https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - brcm,bcm2712-pispbe
> +      - const: raspberrypi,pispbe
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  iommus:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        isp@880000  {
> +             compatible = "brcm,bcm2712-pispbe", "raspberrypi,pispbe";
> +             reg = <0x10 0x00880000 0x0 0x4000>;
> +             interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
> +             clocks = <&firmware_clocks 7>;
> +             iommus = <&iommu2>;
> +        };
> +    };
> --
> 2.43.2
>




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