Date:   Wed, 25 Jan 2023 12:21:11 +0100
From:   Marco Felsch <m.felsch@pengutronix.de>
To:     Michael Riesch <michael.riesch@wolfvision.net>
Cc:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Gerald Loacker <gerald.loacker@wolfvision.net>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
        Hans Verkuil <hverkuil@xs4all.nl>,
        Mikhail Rudenko <mike.rudenko@gmail.com>,
        Krzysztof =?utf-8?Q?Ha=C5=82asa?= <khalasa@piap.pl>,
        Marek Vasut <marex@denx.de>
Subject: Re: [PATCH v2 1/2] dt-bindings: media: i2c: add imx415 cmos image
 sensor
Message-ID: <20230125112111.hnjf57gecch4ddi5@pengutronix.de>
References: <20230124060107.3922237-1-michael.riesch@wolfvision.net>
 <20230124060107.3922237-2-michael.riesch@wolfvision.net>
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Hi Michael,

On 23-01-24, Michael Riesch wrote:
> Add devicetree binding for the Sony IMX415 CMOS image sensor.
> 
> Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
> ---
> v2:
>  - fix reference in port (must be /$defs/port-base)
>  - describe data-lanes in more detail
>  - remove unexpected property clock-lanes from example
>  - sort properties in example alphabetically
> 
>  .../bindings/media/i2c/sony,imx415.yaml       | 130 ++++++++++++++++++
>  MAINTAINERS                                   |   7 +
>  2 files changed, 137 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/sony,imx415.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx415.yaml b/Documentation/devicetree/bindings/media/i2c/sony,imx415.yaml
> new file mode 100644
> index 000000000000..104c36b64c09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/sony,imx415.yaml
> @@ -0,0 +1,130 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/sony,imx415.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sony IMX415 CMOS Image Sensor
> +
> +maintainers:
> +  - Michael Riesch <michael.riesch@wolfvision.net>
> +
> +description: |-
> +  The Sony IMX415 is a diagonal 6.4 mm (Type 1/2.8) CMOS active pixel type
> +  solid-state image sensor with a square pixel array and 8.46 M effective
> +  pixels. This chip operates with analog 2.9 V, digital 1.1 V, and interface
> +  1.8 V triple power supply, and has low power consumption.
> +  The IMX415 is programmable through I2C interface. The sensor output is
> +  available via CSI-2 serial data output (two or four lanes).
> +
> +allOf:
> +  - $ref: ../video-interface-devices.yaml#
> +
> +properties:
> +  compatible:
> +    const: sony,imx415
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    description: Input clock (24 MHz, 27 MHz, 37.125 MHz, 72 MHz or 74.25 MHz)

I would move this description to the clocks property.

> +    items:
> +      - const: inck

If there is only one clock we could remove the clock-names property to
not bother the user to specify this.

> +
> +  avdd-supply:
> +    description: Analog power supply (2.9 V)
> +
> +  dvdd-supply:
> +    description: Digital power supply (1.1 V)
> +
> +  ovdd-supply:
> +    description: Interface power supply (1.8 V)
> +
> +  reset-gpios:
> +    description: Sensor reset (XCLR) GPIO
> +    maxItems: 1
> +
> +  flash-leds: true
> +
> +  lens-focus: true
> +
> +  orientation: true
> +
> +  rotation: true
> +
> +  port:
> +    $ref: /schemas/graph.yaml#/$defs/port-base
> +
> +    properties:
> +      endpoint:
> +        $ref: /schemas/media/video-interfaces.yaml#
> +        unevaluatedProperties: false
> +
> +        properties:
> +          data-lanes:
> +            oneOf:
> +              - items:
> +                  - const: 1
> +                  - const: 2
> +              - items:
> +                  - const: 1
> +                  - const: 2
> +                  - const: 3
> +                  - const: 4
> +
> +          link-frequencies: true
> +
> +        required:
> +          - data-lanes
> +          - link-frequencies
> +
> +    required:
> +      - endpoint
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - avdd-supply
> +  - dvdd-supply
> +  - ovdd-supply
> +  - port
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        imx415: camera-sensor@1a {
> +            compatible = "sony,imx415";
> +            reg = <0x1a>;
> +            avdd-supply = <&vcc2v9_cam>;
> +            clocks = <&clock_cam>;
> +            clock-names = "inck";
> +            dvdd-supply = <&vcc1v1_cam>;
> +            lens-focus = <&vcm>;
> +            orientation = <2>;
> +            ovdd-supply = <&vcc1v8_cam>;
> +            reset-gpios = <&gpio_expander 14 GPIO_ACTIVE_LOW>;
> +            rotation = <180>;
> +
> +            port {
> +                imx415_ep: endpoint {
> +                    data-lanes = <1 2 3 4>;
> +                    link-frequencies = /bits/ 64 <445500000>;
> +                    remote-endpoint = <&mipi_in>;
> +                };
> +            };
> +        };
> +    };

Nit albeit I'm not quite sure but I think the indent should be two spaces.

> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f61eb221415b..c9fa893bf649 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -19493,6 +19493,13 @@ T:	git git://linuxtv.org/media_tree.git
>  F:	Documentation/devicetree/bindings/media/i2c/sony,imx412.yaml
>  F:	drivers/media/i2c/imx412.c
>  
> +SONY IMX415 SENSOR DRIVER
> +M:	Michael Riesch <michael.riesch@wolfvision.net>
> +L:	linux-media@vger.kernel.org
> +S:	Maintained
> +T:	git git://linuxtv.org/media_tree.git
> +F:	Documentation/devicetree/bindings/media/i2c/sony,imx415.yaml

I'm not sure if you should add an entry here since you're already listed
as maintainer within the binding file.

Regards,
  Marco

> +
>  SONY MEMORYSTICK SUBSYSTEM
>  M:	Maxim Levitsky <maximlevitsky@gmail.com>
>  M:	Alex Dubov <oakad@yahoo.com>
> -- 
> 2.30.2
> 
>