linux-kernel - Re: [PATCH v6 2/5] dt-bindings: media: add mediatek ISP3.0 camsv

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Message-ID: <ca502463-84d0-4c50-b684-f509bfe857fb@collabora.com>
Date: Mon, 29 Jul 2024 16:57:36 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Julien Stephan <jstephan@...libre.com>,
 Laurent Pinchart <laurent.pinchart@...asonboard.com>,
 Andy Hsieh <andy.hsieh@...iatek.com>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, Phi-bang Nguyen <pnguyen@...libre.com>
Subject: Re: [PATCH v6 2/5] dt-bindings: media: add mediatek ISP3.0 camsv

Il 29/07/24 16:48, Julien Stephan ha scritto:
> From: Phi-bang Nguyen <pnguyen@...libre.com>
> 
> This adds the bindings, for the ISP3.0 camsv module embedded in
> some Mediatek SoC, such as the mt8365
> 
> Signed-off-by: Phi-bang Nguyen <pnguyen@...libre.com>
> Signed-off-by: Julien Stephan <jstephan@...libre.com>
> ---
>   .../bindings/media/mediatek,mt8365-camsv.yaml      | 109 +++++++++++++++++++++
>   MAINTAINERS                                        |   1 +
>   2 files changed, 110 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mt8365-camsv.yaml b/Documentation/devicetree/bindings/media/mediatek,mt8365-camsv.yaml
> new file mode 100644
> index 000000000000..fdd076756459
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mt8365-camsv.yaml
> @@ -0,0 +1,109 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (c) 2023 MediaTek, BayLibre
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mt8365-camsv.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek CAMSV 3.0

Sorry, can we unroll the "CAMSV" acronym?

Is that CAMera Sensor V(what?) or anything similar?

Thanks,
Angelo

> +
> +maintainers:
> +  - Laurent Pinchart <laurent.pinchart@...asonboard.com>
> +  - Julien Stephan <jstephan@...libre.com>
> +  - Andy Hsieh <andy.hsieh@...iatek.com>
> +
> +description:
> +  The CAMSV is a video capture device that includes a DMA engine connected to
> +  the SENINF CSI-2 receivers. The number of CAMSVs depend on the SoC model.
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt8365-camsv
> +
> +  reg:
> +    items:
> +      - description: camsv base
> +      - description: img0 base
> +      - description: tg base
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: cam clock
> +      - description: camtg clock
> +      - description: camsv clock
> +
> +  clock-names:
> +    items:
> +      - const: cam
> +      - const: camtg
> +      - const: camsv
> +
> +  iommus:
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Connection to the SENINF output
> +
> +    required:
> +      - port@0
> +
> +required:
> +  - compatible
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - power-domains
> +  - iommus
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/clock/mediatek,mt8365-clk.h>
> +    #include <dt-bindings/memory/mediatek,mt8365-larb-port.h>
> +    #include <dt-bindings/power/mediatek,mt8365-power.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        camsv@...50000 {
> +            compatible = "mediatek,mt8365-camsv";
> +            reg = <0 0x15050000 0 0x0040>,
> +                  <0 0x15050208 0 0x0020>,
> +                  <0 0x15050400 0 0x0100>;
> +            interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_LOW>;
> +            clocks = <&camsys CLK_CAM>,
> +                     <&camsys CLK_CAMTG>,
> +                     <&camsys CLK_CAMSV0>;
> +            clock-names = "cam", "camtg", "camsv";
> +            iommus = <&iommu M4U_PORT_CAM_IMGO>;
> +            power-domains = <&spm MT8365_POWER_DOMAIN_CAM>;
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +                port@0 {
> +                    reg = <0>;
> +                    camsv1_endpoint: endpoint {
> +                        remote-endpoint = <&seninf_camsv1_endpoint>;
> +                    };
> +                };
> +            };
> +        };
> +    };
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 6bd7df1c3e08..9ac8c08ba692 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14163,6 +14163,7 @@ M:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
>   M:	Julien Stephan <jstephan@...libre.com>
>   M:	Andy Hsieh <andy.hsieh@...iatek.com>
>   S:	Supported
> +F:	Documentation/devicetree/bindings/media/mediatek,mt8365-camsv.yaml
>   F:	Documentation/devicetree/bindings/media/mediatek,mt8365-seninf.yaml
>   
>   MEDIATEK SMI DRIVER
>