diff mbox series

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

Message ID 20201002133537.172379-2-bogdan.togorean@analog.com (mailing list archive)
State Superseded, archived
Headers
Series [v2,1/2] media: i2c: Add driver for the Analog Devices ADDI9036 ToF front-end |

Commit Message

Bogdan Togorean Oct. 2, 2020, 1:35 p.m. UTC 
Add YAML device tree bindings for Analog Devices Inc. ADDI9036 CCD TOF
front-end.

Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
---
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

Comments

Rob Herring Oct. 6, 2020, 8:47 p.m. UTC | #1 
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@analog.com>
> ---
> 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
> +---
> +$id: http://devicetree.org/schemas/media/i2c/adi,addi9036.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices ADDI9036 VGA CCD Time of Flight Sensor
> +
> +maintainers:
> +  - Bogdan Togorean <bogdan.togorean@analog.com>
> +
> +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.

> +    maxItems: 1
> +
> +  reset-gpios:

maxItems: 1

> +    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?

> +
> +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
>
Bogdan Togorean Oct. 8, 2020, 6:23 a.m. UTC | #2 
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@analog.com>
> > ---
> > 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@analog.com>
> > +
> > +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.
Sakari Ailus Oct. 8, 2020, 6:35 a.m. UTC | #3 
Hi Bogdan,

On Thu, Oct 08, 2020 at 06:23:33AM +0000, Togorean, Bogdan wrote:
> 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@analog.com>
> > > ---
> > > 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@analog.com>
> > > +
> > > +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. 

That's not a DT binding issue. The driver needs to set the field before
calling v4l2_fwnode_endpoint_parse.

Does the device not support one lane operation?
Bogdan Togorean Oct. 8, 2020, 6:42 a.m. UTC | #4 
Hi Sakari,

> Hi Bogdan,
> 
> On Thu, Oct 08, 2020 at 06:23:33AM +0000, Togorean, Bogdan wrote:
> > 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@analog.com>
> > > > ---
> > > > 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@analog.com>
> > > > +
> > > > +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.
> 
> That's not a DT binding issue. The driver needs to set the field before
> calling v4l2_fwnode_endpoint_parse.
> 
> Does the device not support one lane operation?
> 
Now I was reading your response to driver review and understood the problem.
Sorry for this an I'll set the bus_type in driver before call of v4l2_fwnode_endpoint_parse.

And the camera does not support one lane.
> --
> Regards,
> 
> Sakari Ailus
diff mbox series

Patch

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
+---
+$id: http://devicetree.org/schemas/media/i2c/adi,addi9036.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADDI9036 VGA CCD Time of Flight Sensor
+
+maintainers:
+  - Bogdan Togorean <bogdan.togorean@analog.com>
+
+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
+    maxItems: 1
+
+  reset-gpios:
+    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
+
+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>;
+                };
+            };
+        };
+    };
+
+...