linux-kernel - Re: [PATCH v13 1/7] dt-bindings: media: platform: visconti: Add Toshiba Visconti MIPI CSI-2 Receiver

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Message-ID: <aPB16VqrMZrMNDSq@lizhi-Precision-Tower-5810>
Date: Thu, 16 Oct 2025 00:34:49 -0400
From: Frank Li <Frank.li@....com>
To: Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@...l.toshiba>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>, linux-media@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v13 1/7] dt-bindings: media: platform: visconti: Add
 Toshiba Visconti MIPI CSI-2 Receiver

On Thu, Oct 16, 2025 at 11:24:38AM +0900, Yuji Ishikawa wrote:
> Adds the Device Tree binding documentation that allows to describe
> the MIPI CSI-2 Receiver found in Toshiba Visconti SoCs.
>
> Signed-off-by: Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
> ---
> Changelog v12:
> - Newly add bindings for CSI2RX driver
>
> Changelog v13:
> - add entries to MAINTAINERS file.
> - update email address of Nobuhiro Iwamatsu in /maintainers
> - add Yuji Ishikawa to /maintainers
> - change /properties/compatible: toshiba,visconti5-csi2rx -> toshiba,visconti5-csi2
> - change bindings file name: toshiba,visconti5-csi2rx -> toshiba,visconti5-csi2
> - change node name in sample DTS: csi2rx -> csi
> - remove "|-" from /description
> - update /description
> - add definitions of clock and reset
> - update /properties/ports/properties/port@...escription for better comment
> - update /properties/ports/properties/port@...ref to specify full pathname
> - remove /properties/ports/properties/port@...roperties/endpoint/properties/data-lanes/description because the default text provides enough information.
> - update sample dts
> ---
>  .../bindings/media/toshiba,visconti5-csi2.yaml     | 125 +++++++++++++++++++++
>  MAINTAINERS                                        |   7 ++
>  2 files changed, 132 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml b/Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml
> new file mode 100644
> index 000000000000..21fb46de5b6e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml
> @@ -0,0 +1,125 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/toshiba,visconti5-csi2.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toshiba Visconti5 SoC MIPI CSI-2 receiver
> +
> +maintainers:
> +  - Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@...l.toshiba>
> +  - Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
> +
> +description:
> +  Toshiba Visconti5 SoC MIPI CSI-2 receiver device receives MIPI CSI-2 video
> +  stream. The obtained video stream is used as input for the Visconti5 VIIF.
> +
> +properties:
> +  compatible:
> +    const: toshiba,visconti5-csi2
> +

...

> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/toshiba,tmpv770x.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        csi0: csi@...08000 {

Needn't label csi0

> +            compatible = "toshiba,visconti5-csi2";
> +            reg = <0 0x1c008000 0 0x400>;
> +            interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&pismu TMPV770X_CLK_VIIFBS0_CFG>,
> +                     <&pismu TMPV770X_CLK_VIIFBS0_APB>;
> +            clock-names = "cfg", "apb";
> +            resets = <&pismu TMPV770X_RESET_VIIFBS0_APB>;
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;

need empty line here.
> +                port@0 {
> +                    reg = <0>;

empty line here

> +                    csi0_in: endpoint {
> +                        data-lanes = <1 2>;
> +                        remote-endpoint = <&imx219_out>;
> +                    };
> +                };

empty line here

Frank
> +                port@1 {
> +                    reg = <1>;
> +                    csi0_out: endpoint {
> +                        remote-endpoint = <&video0_in>;
> +                    };
> +                };
> +            };
> +        };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 46126ce2f968..e4634a0aad74 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -25979,6 +25979,13 @@ F:	Documentation/devicetree/bindings/media/i2c/toshiba,tc358743.txt
>  F:	drivers/media/i2c/tc358743*
>  F:	include/media/i2c/tc358743.h
>
> +TOSHIBA VISCONTI VIIF DRIVER
> +M:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@...l.toshiba>
> +M:	Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
> +L:	linux-media@...r.kernel.org
> +S:	Maintained
> +F:	Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml
> +
>  TOSHIBA WMI HOTKEYS DRIVER
>  M:	Azael Avalos <coproscefalo@...il.com>
>  L:	platform-driver-x86@...r.kernel.org
>
> --
> 2.34.1
>
>