Re: [PATCH v6 1/4] dt-bindings: media: imx258: add bindings for IMX258 sensor

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On Fri, Jan 22, 2021 at 11:18:22AM +0200, Sakari Ailus wrote:
> Hi Krysztof,
> 
> On Wed, Nov 18, 2020 at 09:27:12PM +0100, Krzysztof Kozlowski wrote:
> > Add bindings for the IMX258 camera sensor.  The bindings, just like the
> > driver, are quite limited, e.g. do not support regulator supplies.
> > 
> > Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> > 
> > ---
> > 
> > Changes since v4:
> > 1. Add clock-lanes,
> > 2. Add Rob's review,
> > 3. Add one more example and extend existing one,
> > 4. Add common clock properties (assigned-*).
> > 
> > Changes since v3:
> > 1. Document also two lane setup.
> > 
> > Changes since v2:
> > 1. Remove clock-frequency, add reset GPIOs, add supplies.
> > 2. Use additionalProperties.
> > 
> > Changes since v1:
> > 1. None
> > ---
> >  .../devicetree/bindings/media/i2c/imx258.yaml | 140 ++++++++++++++++++
> >  MAINTAINERS                                   |   1 +
> >  2 files changed, 141 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/i2c/imx258.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/media/i2c/imx258.yaml b/Documentation/devicetree/bindings/media/i2c/imx258.yaml
> > new file mode 100644
> > index 000000000000..4a3471fb88a1
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/i2c/imx258.yaml
> > @@ -0,0 +1,140 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/i2c/imx258.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sony IMX258 13 Mpixel CMOS Digital Image Sensor
> > +
> > +maintainers:
> > +  - Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> > +
> > +description: |-
> > +  IMX258 is a diagonal 5.867mm (Type 1/3.06) 13 Mega-pixel CMOS active pixel
> > +  type stacked image sensor with a square pixel array of size 4208 x 3120. It
> > +  is programmable through I2C interface.  Image data is sent through MIPI
> > +  CSI-2.
> > +
> > +properties:
> > +  compatible:
> > +    const: sony,imx258
> > +
> > +  assigned-clocks: true
> > +  assigned-clock-parents: true
> > +  assigned-clock-rates: true
> > +
> > +  clocks:
> > +    description:
> > +      Clock frequency from 6 to 27 MHz.
> > +    maxItems: 1
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  reset-gpios:
> > +    description: |-
> > +      Reference to the GPIO connected to the XCLR pin, if any.
> > +
> > +  vana-supply:
> > +    description:
> > +      Analog voltage (VANA) supply, 2.7 V
> > +
> > +  vdig-supply:
> > +    description:
> > +      Digital I/O voltage (VDIG) supply, 1.2 V
> > +
> > +  vif-supply:
> > +    description:
> > +      Interface voltage (VIF) supply, 1.8 V
> > +
> > +  # See ../video-interfaces.txt for more details
> > +  port:
> > +    type: object
> > +    properties:
> > +      endpoint:
> > +        type: object
> > +        properties:
> > +          clock-lanes:
> > +            const: 0
> 
> This is redundant. Please remove, same for the examples. Can be a separate
> patch, too.

Before I remove too much - you mean "clock-lanes" is redundant or entire
set of properties in "port" node?

Best regards,
Krzysztof



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