Re: [PATCH 2/4] media: dt-bindings: media: Document RZ/G2L CRU

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Hi Laurent,

Thank you for the review.

On Tue, Aug 30, 2022 at 12:42 AM Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Mon, Aug 01, 2022 at 10:47:16PM +0100, Lad Prabhakar wrote:
> > Document the CRU block found on Renesas RZ/G2L SoC's.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> > ---
> > RFC v2 -> v1
> > * Dropped endpoint stuff from port1 as suggested by Rob
> > * Updated description for endpoint
> >
> > RFC v1 -> RFC v2
> > * Dropped CSI
> > ---
> >  .../bindings/media/renesas,rzg2l-cru.yaml     | 142 ++++++++++++++++++
> >  1 file changed, 142 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> > new file mode 100644
> > index 000000000000..d7389693dae9
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> > @@ -0,0 +1,142 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +# Copyright (C) 2022 Renesas Electronics Corp.
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas RZ/G2L (and alike SoC's) Camera Data Receiving Unit (CRU) Image processing
> > +
> > +maintainers:
> > +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> > +
> > +description:
> > +  The CRU image processing module is a data conversion module equipped with pixel
> > +  color space conversion, LUT, pixel format conversion, etc. An MIPI CSI-2 input and
> > +  parallel (including ITU-R BT.656) input are provided as the image sensor interface.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
>
> No oneOf here either.
>
Agreed, I will drop it.

> > +      - items:
> > +          - enum:
> > +              - renesas,r9a07g044-cru     # RZ/G2{L,LC}
> > +              - renesas,r9a07g054-cru     # RZ/V2L
> > +          - const: renesas,rzg2l-cru
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 3
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: image_conv
> > +      - const: image_conv_err
> > +      - const: axi_mst_err
> > +
> > +  clocks:
> > +    items:
> > +      - description: CRU Main clock
> > +      - description: CPU Register access clock
> > +      - description: CRU image transfer clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: vclk
> > +      - const: pclk
> > +      - const: aclk
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    items:
> > +      - description: CRU_PRESETN reset terminal
> > +      - description: CRU_ARESETN reset terminal
> > +
> > +  reset-names:
> > +    items:
> > +      - const: presetn
> > +      - const: aresetn
> > +
> > +  ports:
> > +    $ref: /schemas/graph.yaml#/properties/ports
> > +
> > +    properties:
> > +      port@0:
> > +        $ref: /schemas/graph.yaml#/$defs/port-base
> > +        unevaluatedProperties: false
> > +        description:
> > +          Input port node, single endpoint describing a parallel input source.
> > +
> > +        properties:
> > +          endpoint:
> > +            $ref: video-interfaces.yaml#
> > +            unevaluatedProperties: false
> > +
> > +            properties:
> > +              hsync-active: true
> > +              vsync-active: true
> > +              bus-width: true
> > +              data-shift: true
> > +
> > +      port@1:
> > +        $ref: /schemas/graph.yaml#/properties/port
> > +        description:
> > +          Input port node, describing the Image Processing module connected to the
> > +          CSI-2 receiver.
>
> Both ports should be mandatory as they exist at the hardware level.
> Connections (through endpoints) are optional.
>
Agreed, I will make the ports as required.

Cheers,
Prabhakar



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