[v2,1/5] dt-bindings: media: add bindings for dcmipp driver

Add the yaml binding for the DCMIPP driver.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
---
 .../bindings/media/st,stm32-dcmipp.yaml       | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml

On Tue, 29 Aug 2023 15:23:45 +0200, Alain Volmat wrote:
> Add the yaml binding for the DCMIPP driver.
> 
> Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
> ---
>  .../bindings/media/st,stm32-dcmipp.yaml       | 95 +++++++++++++++++++
>  1 file changed, 95 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml: title: 'STMicroelectronics STM32 DCMIPP Digital Camera Memory Interface Pixel Processor binding' should not be valid under {'pattern': '([Bb]inding| [Ss]chema)'}
	hint: Everything is a binding/schema, no need to say it. Describe what hardware the binding is for.
	from schema $id: http://devicetree.org/meta-schemas/base.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230829132357.192535-2-alain.volmat@foss.st.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

Hey,

On Tue, Aug 29, 2023 at 03:23:45PM +0200, Alain Volmat wrote:
> Add the yaml binding for the DCMIPP driver.

Please drop all mentions of drivers, bindings are for hardware.

> 
> Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
> ---
>  .../bindings/media/st,stm32-dcmipp.yaml       | 95 +++++++++++++++++++
>  1 file changed, 95 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml b/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> new file mode 100644
> index 000000000000..63f03a1c42b6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/st,stm32-dcmipp.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectronics STM32 DCMIPP Digital Camera Memory Interface Pixel Processor binding

s/binding// to appease the bot.

> +
> +maintainers:
> +  - Hugues Fruchet <hugues.fruchet@foss.st.com>
> +  - Alain Volmat <alain.volmat@foss.st.com>
> +
> +properties:
> +  compatible:
> +    const: st,stm32mp13-dcmipp
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: kclk

Can drop the items: here since you only have one. The name is also
pretty pointless when you only have one...

> +
> +  resets:
> +    maxItems: 1
> +
> +  port:
> +    $ref: /schemas/graph.yaml#/$defs/port-base
> +    unevaluatedProperties: false
> +    description:
> +      DCMIPP supports a single port node with parallel bus.
> +
> +    properties:
> +      endpoint:
> +        $ref: video-interfaces.yaml#
> +        unevaluatedProperties: false
> +
> +        properties:
> +          bus-type:
> +            enum: [5, 6]
> +            default: 5
> +
> +          bus-width:
> +            enum: [8, 10, 12, 14]
> +            default: 8
> +
> +          pclk-sample: true
> +          hsync-active: true
> +          vsync-active: true
> +
> +        required:
> +          - pclk-sample
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - resets
> +  - port
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/stm32mp13-clks.h>
> +    #include <dt-bindings/reset/stm32mp13-resets.h>
> +    dcmipp: dcmipp@5a000000 {

Neither of the labels here are used AFAICT, please remove them.

Thanks,
Conor.

> +        compatible = "st,stm32mp13-dcmipp";
> +        reg = <0x5a000000 0x400>;
> +        interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
> +        resets = <&rcc DCMIPP_R>;
> +        clocks = <&rcc DCMIPP_K>;
> +        clock-names = "kclk";
> +
> +        port {
> +             dcmipp_0: endpoint {
> +                   remote-endpoint = <&mipid02_2>;
> +                   bus-width = <8>;
> +                   hsync-active = <0>;
> +                   vsync-active = <0>;
> +                   pclk-sample = <0>;
> +             };
> +        };
> +    };
> +
> +...
> -- 
> 2.25.1
>

Hi Conor,

thanks for the review.  I've taken into account your comment and
will push this into the v3.


On Tue, Aug 29, 2023 at 04:00:06PM +0100, Conor Dooley wrote:
> Hey,
> 
> On Tue, Aug 29, 2023 at 03:23:45PM +0200, Alain Volmat wrote:
> > Add the yaml binding for the DCMIPP driver.
> 
> Please drop all mentions of drivers, bindings are for hardware.

Ok

> 
> > 
> > Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
> > ---
> >  .../bindings/media/st,stm32-dcmipp.yaml       | 95 +++++++++++++++++++
> >  1 file changed, 95 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml b/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> > new file mode 100644
> > index 000000000000..63f03a1c42b6
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
> > @@ -0,0 +1,95 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/st,stm32-dcmipp.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: STMicroelectronics STM32 DCMIPP Digital Camera Memory Interface Pixel Processor binding
> 
> s/binding// to appease the bot.

Ok

> 
> > +
> > +maintainers:
> > +  - Hugues Fruchet <hugues.fruchet@foss.st.com>
> > +  - Alain Volmat <alain.volmat@foss.st.com>
> > +
> > +properties:
> > +  compatible:
> > +    const: st,stm32mp13-dcmipp
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  clock-names:
> > +    items:
> > +      - const: kclk
> 
> Can drop the items: here since you only have one. The name is also
> pretty pointless when you only have one...

Ok, I removed clock-names (from required as well).
> 
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +  port:
> > +    $ref: /schemas/graph.yaml#/$defs/port-base
> > +    unevaluatedProperties: false
> > +    description:
> > +      DCMIPP supports a single port node with parallel bus.
> > +
> > +    properties:
> > +      endpoint:
> > +        $ref: video-interfaces.yaml#
> > +        unevaluatedProperties: false
> > +
> > +        properties:
> > +          bus-type:
> > +            enum: [5, 6]
> > +            default: 5
> > +
> > +          bus-width:
> > +            enum: [8, 10, 12, 14]
> > +            default: 8
> > +
> > +          pclk-sample: true
> > +          hsync-active: true
> > +          vsync-active: true
> > +
> > +        required:
> > +          - pclk-sample
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +  - clock-names
> > +  - resets
> > +  - port
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/clock/stm32mp13-clks.h>
> > +    #include <dt-bindings/reset/stm32mp13-resets.h>
> > +    dcmipp: dcmipp@5a000000 {
> 
> Neither of the labels here are used AFAICT, please remove them.

Done

Regards,
Alain