RE: [PATCH v2 2/2] media: dt-bindings: media: i2c: Add bindings for ADDI9036

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Thank you Rob for review
> On Fri, Oct 02, 2020 at 04:35:17PM +0300, Bogdan Togorean wrote:
> > Add YAML device tree bindings for Analog Devices Inc. ADDI9036 CCD TOF
> > front-end.
> >
> > Signed-off-by: Bogdan Togorean <bogdan.togorean@xxxxxxxxxx>
> > ---
> > v2: added reg property description
> > ---
> >  .../bindings/media/i2c/adi,addi9036.yaml      | 76 +++++++++++++++++++
> >  1 file changed, 76 insertions(+)
> >  create mode 100644
> Documentation/devicetree/bindings/media/i2c/adi,addi9036.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/media/i2c/adi,addi9036.yaml
> b/Documentation/devicetree/bindings/media/i2c/adi,addi9036.yaml
> > new file mode 100644
> > index 000000000000..7c4af704db98
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/i2c/adi,addi9036.yaml
> > @@ -0,0 +1,76 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id:
> https://urldefense.com/v3/__http://devicetree.org/schemas/media/i2c/adi,add
> i9036.yaml*__;Iw!!A3Ni8CS0y2Y!vLJoRikiVhmxm8p3bhGjRkFIWgjXvVlcJ8ATa9okn
> JqDbtobtK46hHICblE2i2Yj2sZL$
> > +$schema: https://urldefense.com/v3/__http://devicetree.org/meta-
> schemas/core.yaml*__;Iw!!A3Ni8CS0y2Y!vLJoRikiVhmxm8p3bhGjRkFIWgjXvVlcJ
> 8ATa9oknJqDbtobtK46hHICblE2iz34fu4o$
> > +
> > +title: Analog Devices ADDI9036 VGA CCD Time of Flight Sensor
> > +
> > +maintainers:
> > +  - Bogdan Togorean <bogdan.togorean@xxxxxxxxxx>
> > +
> > +description: |-
> > +  The ADDI9036 is a complete, 45 MHz, front-end solution for charge coupled
> > +  device (CCD) time of flight (TOF) imaging applications. It is programmable
> > +  through I2C interface. Image data is sent through MIPI CSI-2 2 lanes and
> > +  can output two RAW12 packed data streams. One is IR and the other is
> Depth.
> > +  Each data stream is on a separate or same MIPI Virtual Channel, depending
> > +  on configuration and each have 640x480 resolution.
> > +
> > +properties:
> > +  compatible:
> > +    const: adi,addi9036
> > +
> > +  reg:
> > +    description: I2C device address
> 
> Can drop this.
ACK
> 
> > +    maxItems: 1
> > +
> > +  reset-gpios:
> 
> maxItems: 1
ACK
> 
> > +    description: |-
> > +      Reference to the GPIO connected to the RST/SYNC pin, if any.
> > +      Must be released (set high) after all supplies are applied.
> > +
> > +  # See ../video-interfaces.txt for more details
> > +  port:
> > +    type: object
> > +    properties:
> > +      endpoint:
> > +        type: object
> > +        properties:
> > +          data-lanes:
> > +            description: |-
> > +              The sensor supports two-lane operation.
> > +              For two-lane operation the property must be set to <1 2>.
> > +            items:
> > +              - const: 1
> > +              - const: 2
> 
> If this is the only possible setting, then why does it need to be in DT?
If this is not set the bus_type will be not be correctly set after call of
v4l2_fwnode_endpoint_parse. 
> 
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - port
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    i2c0 {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        addi9036: addi9036_tof@64 {
> > +            compatible = "adi,addi9036";
> > +            reg = <0x64>;
> > +
> > +            reset-gpios = <&gpio 41 1>;
> > +
> > +            port {
> > +                addi9036_ep: endpoint {
> > +                    remote-endpoint = <&csi1_ep>;
> > +                    data-lanes = <1 2>;
> > +                };
> > +            };
> > +        };
> > +    };
> > +
> > +...
> > --
> > 2.28.0
> >

Will send V3 with updates.




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