Re: [PATCH v7 1/2] dt-bindings: media: Add bindings for imx334

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On Wed, Feb 03, 2021 at 01:54:40PM +0000, Martina Krasteva wrote:
> From: Martina Krasteva <martinax.krasteva@xxxxxxxxx>
> 
> - Add dt-bindings documentation for Sony imx334 sensor driver.
> - Add MAINTAINERS entry for Sony imx334 binding documentation.
> 
> Signed-off-by: Martina Krasteva <martinax.krasteva@xxxxxxxxx>
> Reviewed-by: Gjorgji Rosikopulos <gjorgjix.rosikopulos@xxxxxxxxx>
> Acked-by: Daniele Alessandrelli <daniele.alessandrelli@xxxxxxxxx>
> Acked-by: Paul J. Murphy <paul.j.murphy@xxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> ---
>  .../devicetree/bindings/media/i2c/sony,imx334.yaml | 90 ++++++++++++++++++++++
>  MAINTAINERS                                        |  8 ++
>  2 files changed, 98 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/sony,imx334.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx334.yaml b/Documentation/devicetree/bindings/media/i2c/sony,imx334.yaml
> new file mode 100644
> index 000000000000..3145e94d043e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/sony,imx334.yaml
> @@ -0,0 +1,90 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2021 Intel Corporation
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/sony,imx334.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sony IMX334 Sensor
> +
> +maintainers:
> +  - Paul J. Murphy <paul.j.murphy@xxxxxxxxx>
> +  - Daniele Alessandrelli <daniele.alessandrelli@xxxxxxxxx>
> +
> +description:
> +  IMX334 sensor is a Sony CMOS active pixel digital image sensor with an active
> +  array size of 3864H x 2202V. It is programmable through I2C interface. The
> +  I2C client address is fixed to 0x1a as per sensor data sheet. Image data is
> +  sent through MIPI CSI-2.
> +
> +properties:
> +  compatible:
> +    const: sony,imx334
> +  reg:
> +    description: I2C address
> +    maxItems: 1
> +
> +  assigned-clocks: true
> +  assigned-clock-parents: true
> +  assigned-clock-rates: true
> +
> +  clocks:
> +    description: Clock frequency from 6 to 27 MHz, 37.125MHz, 74.25MHz
> +    maxItems: 1
> +
> +  reset-gpios:
> +    description: Reference to the GPIO connected to the XCLR pin, if any.
> +
> +  port:
> +    type: object
> +    additionalProperties: false
> +    $ref: /schemas/graph.yaml#/properties/port
> +
> +    properties:
> +      endpoint:
> +        type: object
> +        properties:
> +          data-lanes:
> +            $ref: ../video-interfaces.yaml#/properties/data-lanes
> +          link-frequencies:
> +            $ref: ../video-interfaces.yaml#/properties/link-frequencies
> +
> +        required:
> +          - data-lanes
> +          - link-frequencies
> +
> +    required:
> +      - endpoint
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - port
> +
> +additionalProperties: false

For the bindings:
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

> +            reg = <0x1a>;
> +            clocks = <&imx334_clk>
> +
> +            assigned-clocks = <&imx334_clk>;
> +            assigned-clock-rates = <24000000>;
> +
> +            port {
> +                imx334: endpoint {
> +                    remote-endpoint = <&cam>;
> +                    data-lanes = <1 2 3 4>;
> +                    link-frequencies = /bits/ 64 <891000000>;
> +                };
> +            };
> +        };
> +    };
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 3353de0c4bc8..2ab75519938a 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16589,6 +16589,14 @@ S:	Maintained
>  T:	git git://linuxtv.org/media_tree.git
>  F:	drivers/media/i2c/imx319.c
>  
> +SONY IMX334 SENSOR DRIVER
> +M:	Paul J. Murphy <paul.j.murphy@xxxxxxxxx>

This entry looks unusual.  Paul's name appears in multiple places (added
as maintainer for Keembay and this sensor) but there are no emails from
him:
https://lore.kernel.org/lkml/?q=f%3Apaul.j.murphy%40intel.com
Nothing on LKML.

Does this person really exists and plans to work with upstream?

I am asking because several patches came with acks and reviews before
first submission to LKML which could mean that you just send something
from your internal kernel tree. Usually it is expected to see the
Acks/Reviews/Tested on the lists. Providing them via private channels is
rather discouraged - does not look like open way of doing things.

Best regards,
Krzysztof

> +M:	Daniele Alessandrelli <daniele.alessandrelli@xxxxxxxxx>
> +L:	linux-media@xxxxxxxxxxxxxxx
> +S:	Maintained
> +T:	git git://linuxtv.org/media_tree.git
> +F:	Documentation/devicetree/bindings/media/i2c/sony,imx334.yaml



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