linux-kernel - Re: [PATCH v10 1/3] media: dt-bindings: media: add bindings for Rockchip CIF

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Message-ID: <20231109-closable-superglue-5e7f39739cf1@spud>
Date:   Thu, 9 Nov 2023 17:24:57 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Mehdi Djait <mehdi.djait@...tlin.com>
Cc:     mchehab@...nel.org, heiko@...ech.de, hverkuil-cisco@...all.nl,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        conor+dt@...nel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        thomas.petazzoni@...tlin.com, alexandre.belloni@...tlin.com,
        maxime.chevallier@...tlin.com, paul.kocialkowski@...tlin.com,
        michael.riesch@...fvision.net
Subject: Re: [PATCH v10 1/3] media: dt-bindings: media: add bindings for
 Rockchip CIF

On Wed, Nov 08, 2023 at 05:38:56PM +0100, Mehdi Djait wrote:
> Add a documentation for the Rockchip Camera Interface binding.
> 
> the name of the file rk3066 is the first Rockchip SoC generation that uses cif
> instead of the px30 which is just one of the many iterations of the unit.

I think this is becoming ridiculous. You've now removed the compatible
for the rk3066 but kept it in the filename. I don't understand the
hangup about naming the file after the px30-vip, but naming it after
something that is not documented here at all makes no sense to me.
Either document the rk3066 properly, or remove all mention of it IMO.

Cheers,
Conor.

> 
> Signed-off-by: Mehdi Djait <mehdi.djait@...tlin.com>
> ---
>  .../bindings/media/rockchip,rk3066-cif.yaml   | 94 +++++++++++++++++++
>  1 file changed, 94 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml b/Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml
> new file mode 100644
> index 000000000000..c3a5cd2baf71
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml
> @@ -0,0 +1,94 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/rockchip,rk3066-cif.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip CIF Camera Interface
> +
> +maintainers:
> +  - Mehdi Djait <mehdi.djait@...tlin.com>
> +
> +description:
> +  CIF is a camera interface present on some rockchip SoCs. It receives the data
> +  from Camera sensor or CCIR656 encoder and transfers it into system main memory
> +  by AXI bus.
> +
> +properties:
> +  compatible:
> +    const: rockchip,px30-vip
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: ACLK
> +      - description: HCLK
> +      - description: PCLK
> +
> +  clock-names:
> +    items:
> +      - const: aclk
> +      - const: hclk
> +      - const: pclk
> +
> +  resets:
> +    items:
> +      - description: AXI
> +      - description: AHB
> +      - description: PCLK IN
> +
> +  reset-names:
> +    items:
> +      - const: axi
> +      - const: ahb
> +      - const: pclkin
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  port:
> +    $ref: /schemas/graph.yaml#/properties/port
> +    description: A connection to a sensor or decoder
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - port
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/px30-cru.h>
> +    #include <dt-bindings/power/px30-power.h>
> +
> +    parent {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        video-capture@...90000 {
> +            compatible = "rockchip,px30-vip";
> +            reg = <0x0 0xff490000 0x0 0x200>;
> +            interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cru ACLK_CIF>, <&cru HCLK_CIF>, <&cru PCLK_CIF>;
> +            clock-names = "aclk", "hclk", "pclk";
> +            resets = <&cru SRST_CIF_A>, <&cru SRST_CIF_H>, <&cru SRST_CIF_PCLKIN>;
> +            reset-names = "axi", "ahb", "pclkin";
> +            power-domains = <&power PX30_PD_VI>;
> +
> +            port {
> +                endpoint {
> +                    remote-endpoint = <&tw9900_out>;
> +                };
> +            };
> +        };
> +    };
> +...
> -- 
> 2.41.0
> 

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