diff mbox series

[RFC,v2,2/4] media: dt-bindings: media: Document RZ/G2L CRU

Message ID 20220121010543.31385-3-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State New, archived
Headers show
Series Add driver for Renesas RZ/G2L CRU module | expand

Commit Message

Lad Prabhakar Jan. 21, 2022, 1:05 a.m. UTC 
Document the CRU block found on Renesas RZ/G2L SoC's.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v1->v2
* Dropped CSI
---
 .../bindings/media/renesas,rzg2l-cru.yaml     | 152 ++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml

Comments

Rob Herring (Arm) Feb. 7, 2022, 10:39 p.m. UTC | #1 
On Fri, Jan 21, 2022 at 01:05:41AM +0000, Lad Prabhakar wrote:
> Document the CRU block found on Renesas RZ/G2L SoC's.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v1->v2
> * Dropped CSI
> ---
>  .../bindings/media/renesas,rzg2l-cru.yaml     | 152 ++++++++++++++++++
>  1 file changed, 152 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> new file mode 100644
> index 000000000000..a03fc6ef0117
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> @@ -0,0 +1,152 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright (C) 2022 Renesas Electronics Corp.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/G2L Camera Data Receiving Unit (CRU)
> +
> +maintainers:
> +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> +
> +description:
> +  The RZ/G2L Camera Data Receiving Unit (CRU) device provides video input
> +  capabilities for the Renesas RZ/G2L family of devices.
> +
> +  Depending on the instance the Image Processing input is connected to
> +  external SoC pins or to a CSI-2 receiver.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:

Don't need oneOf when there is only 1 entry.

> +          - enum:
> +              - renesas,r9a07g044-cru     # RZ/G2{L,LC}
> +          - const: renesas,rzg2l-cru
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 3
> +
> +  interrupt-names:
> +    items:
> +      - const: image_conv
> +      - const: image_conv_err
> +      - const: axi_mst_err
> +
> +  clocks:
> +    items:
> +      - description: CRU Main clock
> +      - description: CPU Register access clock
> +      - description: CRU image transfer clock
> +
> +  clock-names:
> +    items:
> +      - const: vclk
> +      - const: pclk
> +      - const: aclk
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    items:
> +      - description: CRU_PRESETN reset terminal
> +      - description: CRU_ARESETN reset terminal
> +
> +  reset-names:
> +    items:
> +      - const: presetn
> +      - const: aresetn
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port node, single endpoint describing a parallel input source.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              hsync-active: true
> +              vsync-active: true
> +              bus-width: true
> +              data-shift: true
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          Output port node, describing the RZ/G2L Image Processing module
> +          connected the CSI-2 receiver

> +
> +        properties:
> +          endpoint@0:
> +            $ref: /schemas/graph.yaml#/properties/endpoint
> +            description: Endpoint connected to CSI2.
> +
> +        anyOf:
> +          - required:
> +              - endpoint@0

You can drop all the endpoint stuff. Just 'endpoint' should be valid as 
well for example. The graph schema covers all that.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - interrupt-names
> +  - clocks
> +  - clock-names
> +  - resets
> +  - reset-names
> +  - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> +  # Device node example with CSI-2
> +  - |
> +    #include <dt-bindings/clock/r9a07g044-cpg.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    cru: video@10830000 {
> +            compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
> +            reg = <0x10830000 0x400>;
> +            interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
> +            interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
> +            clocks = <&cpg CPG_MOD R9A07G044_CRU_VCLK>,
> +                     <&cpg CPG_MOD R9A07G044_CRU_PCLK>,
> +                     <&cpg CPG_MOD R9A07G044_CRU_ACLK>;
> +            clock-names = "vclk", "pclk", "aclk";
> +            power-domains = <&cpg>;
> +            resets = <&cpg R9A07G044_CRU_PRESETN>,
> +                     <&cpg R9A07G044_CRU_ARESETN>;
> +            reset-names = "presetn", "aresetn";
> +
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    port@1 {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            reg = <1>;
> +
> +                            crucsi2: endpoint@0 {
> +                                    reg = <0>;
> +                                    remote-endpoint= <&csi2cru>;
> +                            };
> +                    };
> +            };
> +    };
> -- 
> 2.17.1
> 
>
Jacopo Mondi Feb. 15, 2022, 1:06 p.m. UTC | #2 
Hi Prabhakar,

On Fri, Jan 21, 2022 at 01:05:41AM +0000, Lad Prabhakar wrote:
> Document the CRU block found on Renesas RZ/G2L SoC's.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v1->v2
> * Dropped CSI
> ---
>  .../bindings/media/renesas,rzg2l-cru.yaml     | 152 ++++++++++++++++++
>  1 file changed, 152 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> new file mode 100644
> index 000000000000..a03fc6ef0117
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> @@ -0,0 +1,152 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright (C) 2022 Renesas Electronics Corp.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/G2L Camera Data Receiving Unit (CRU)
> +
> +maintainers:
> +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> +
> +description:
> +  The RZ/G2L Camera Data Receiving Unit (CRU) device provides video input
> +  capabilities for the Renesas RZ/G2L family of devices.
> +
> +  Depending on the instance the Image Processing input is connected to
> +  external SoC pins or to a CSI-2 receiver.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - renesas,r9a07g044-cru     # RZ/G2{L,LC}
> +          - const: renesas,rzg2l-cru
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 3
> +
> +  interrupt-names:
> +    items:
> +      - const: image_conv
> +      - const: image_conv_err
> +      - const: axi_mst_err
> +
> +  clocks:
> +    items:
> +      - description: CRU Main clock
> +      - description: CPU Register access clock
> +      - description: CRU image transfer clock
> +
> +  clock-names:
> +    items:
> +      - const: vclk
> +      - const: pclk
> +      - const: aclk
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    items:
> +      - description: CRU_PRESETN reset terminal
> +      - description: CRU_ARESETN reset terminal
> +
> +  reset-names:
> +    items:
> +      - const: presetn
> +      - const: aresetn
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port node, single endpoint describing a parallel input source.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              hsync-active: true
> +              vsync-active: true
> +              bus-width: true
> +              data-shift: true
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          Output port node, describing the RZ/G2L Image Processing module
> +          connected the CSI-2 receiver

Isn't this the port dedicated to the CSI-2 receiver input ?

> +
> +        properties:
> +          endpoint@0:
> +            $ref: /schemas/graph.yaml#/properties/endpoint
> +            description: Endpoint connected to CSI2.

And the andpoint should describe the connection between the CRU and
the CSI-2 receiver ? (ie it should not contain CSI-2 specific
properties, as those are specified by the CSI-2 receiver device node?)

Thanks
  j
> +
> +        anyOf:
> +          - required:
> +              - endpoint@0
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - interrupt-names
> +  - clocks
> +  - clock-names
> +  - resets
> +  - reset-names
> +  - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> +  # Device node example with CSI-2
> +  - |
> +    #include <dt-bindings/clock/r9a07g044-cpg.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    cru: video@10830000 {
> +            compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
> +            reg = <0x10830000 0x400>;
> +            interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
> +            interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
> +            clocks = <&cpg CPG_MOD R9A07G044_CRU_VCLK>,
> +                     <&cpg CPG_MOD R9A07G044_CRU_PCLK>,
> +                     <&cpg CPG_MOD R9A07G044_CRU_ACLK>;
> +            clock-names = "vclk", "pclk", "aclk";
> +            power-domains = <&cpg>;
> +            resets = <&cpg R9A07G044_CRU_PRESETN>,
> +                     <&cpg R9A07G044_CRU_ARESETN>;
> +            reset-names = "presetn", "aresetn";
> +
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    port@1 {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            reg = <1>;
> +
> +                            crucsi2: endpoint@0 {
> +                                    reg = <0>;
> +                                    remote-endpoint= <&csi2cru>;
> +                            };
> +                    };
> +            };
> +    };
> --
> 2.17.1
>
Lad, Prabhakar March 18, 2022, 8:39 p.m. UTC | #3 
Hi Rob,

Thank you for the review.

On Mon, Feb 7, 2022 at 10:39 PM Rob Herring <robh@kernel.org> wrote:
>
> On Fri, Jan 21, 2022 at 01:05:41AM +0000, Lad Prabhakar wrote:
> > Document the CRU block found on Renesas RZ/G2L SoC's.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > ---
> > v1->v2
> > * Dropped CSI
> > ---
> >  .../bindings/media/renesas,rzg2l-cru.yaml     | 152 ++++++++++++++++++
> >  1 file changed, 152 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> > new file mode 100644
> > index 000000000000..a03fc6ef0117
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> > @@ -0,0 +1,152 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +# Copyright (C) 2022 Renesas Electronics Corp.
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas RZ/G2L Camera Data Receiving Unit (CRU)
> > +
> > +maintainers:
> > +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > +
> > +description:
> > +  The RZ/G2L Camera Data Receiving Unit (CRU) device provides video input
> > +  capabilities for the Renesas RZ/G2L family of devices.
> > +
> > +  Depending on the instance the Image Processing input is connected to
> > +  external SoC pins or to a CSI-2 receiver.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
>
> Don't need oneOf when there is only 1 entry.
>
There are two more SoC's to be added as soon this patch series get
merged, so to keep the changes minimal later I will keep oneOf here.

> > +          - enum:
> > +              - renesas,r9a07g044-cru     # RZ/G2{L,LC}
> > +          - const: renesas,rzg2l-cru
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 3
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: image_conv
> > +      - const: image_conv_err
> > +      - const: axi_mst_err
> > +
> > +  clocks:
> > +    items:
> > +      - description: CRU Main clock
> > +      - description: CPU Register access clock
> > +      - description: CRU image transfer clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: vclk
> > +      - const: pclk
> > +      - const: aclk
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    items:
> > +      - description: CRU_PRESETN reset terminal
> > +      - description: CRU_ARESETN reset terminal
> > +
> > +  reset-names:
> > +    items:
> > +      - const: presetn
> > +      - const: aresetn
> > +
> > +  ports:
> > +    $ref: /schemas/graph.yaml#/properties/ports
> > +
> > +    properties:
> > +      port@0:
> > +        $ref: /schemas/graph.yaml#/$defs/port-base
> > +        unevaluatedProperties: false
> > +        description:
> > +          Input port node, single endpoint describing a parallel input source.
> > +
> > +        properties:
> > +          endpoint:
> > +            $ref: video-interfaces.yaml#
> > +            unevaluatedProperties: false
> > +
> > +            properties:
> > +              hsync-active: true
> > +              vsync-active: true
> > +              bus-width: true
> > +              data-shift: true
> > +
> > +      port@1:
> > +        $ref: /schemas/graph.yaml#/properties/port
> > +        description:
> > +          Output port node, describing the RZ/G2L Image Processing module
> > +          connected the CSI-2 receiver
>
> > +
> > +        properties:
> > +          endpoint@0:
> > +            $ref: /schemas/graph.yaml#/properties/endpoint
> > +            description: Endpoint connected to CSI2.
> > +
> > +        anyOf:
> > +          - required:
> > +              - endpoint@0
>
> You can drop all the endpoint stuff. Just 'endpoint' should be valid as
> well for example. The graph schema covers all that.
>
Will do.

Cheers,
Prabhakar
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - interrupt-names
> > +  - clocks
> > +  - clock-names
> > +  - resets
> > +  - reset-names
> > +  - power-domains
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  # Device node example with CSI-2
> > +  - |
> > +    #include <dt-bindings/clock/r9a07g044-cpg.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    cru: video@10830000 {
> > +            compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
> > +            reg = <0x10830000 0x400>;
> > +            interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
> > +                         <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
> > +                         <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
> > +            interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
> > +            clocks = <&cpg CPG_MOD R9A07G044_CRU_VCLK>,
> > +                     <&cpg CPG_MOD R9A07G044_CRU_PCLK>,
> > +                     <&cpg CPG_MOD R9A07G044_CRU_ACLK>;
> > +            clock-names = "vclk", "pclk", "aclk";
> > +            power-domains = <&cpg>;
> > +            resets = <&cpg R9A07G044_CRU_PRESETN>,
> > +                     <&cpg R9A07G044_CRU_ARESETN>;
> > +            reset-names = "presetn", "aresetn";
> > +
> > +            ports {
> > +                    #address-cells = <1>;
> > +                    #size-cells = <0>;
> > +
> > +                    port@1 {
> > +                            #address-cells = <1>;
> > +                            #size-cells = <0>;
> > +
> > +                            reg = <1>;
> > +
> > +                            crucsi2: endpoint@0 {
> > +                                    reg = <0>;
> > +                                    remote-endpoint= <&csi2cru>;
> > +                            };
> > +                    };
> > +            };
> > +    };
> > --
> > 2.17.1
> >
> >
Lad, Prabhakar March 22, 2022, 12:13 a.m. UTC | #4 
Hi Jacopo,

Thank you for the review.

On Tue, Feb 15, 2022 at 1:05 PM Jacopo Mondi <jacopo@jmondi.org> wrote:
>
> Hi Prabhakar,
>
> On Fri, Jan 21, 2022 at 01:05:41AM +0000, Lad Prabhakar wrote:
> > Document the CRU block found on Renesas RZ/G2L SoC's.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > ---
> > v1->v2
> > * Dropped CSI
> > ---
> >  .../bindings/media/renesas,rzg2l-cru.yaml     | 152 ++++++++++++++++++
> >  1 file changed, 152 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> > new file mode 100644
> > index 000000000000..a03fc6ef0117
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
> > @@ -0,0 +1,152 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +# Copyright (C) 2022 Renesas Electronics Corp.
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas RZ/G2L Camera Data Receiving Unit (CRU)
> > +
> > +maintainers:
> > +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > +
> > +description:
> > +  The RZ/G2L Camera Data Receiving Unit (CRU) device provides video input
> > +  capabilities for the Renesas RZ/G2L family of devices.
> > +
> > +  Depending on the instance the Image Processing input is connected to
> > +  external SoC pins or to a CSI-2 receiver.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> > +          - enum:
> > +              - renesas,r9a07g044-cru     # RZ/G2{L,LC}
> > +          - const: renesas,rzg2l-cru
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 3
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: image_conv
> > +      - const: image_conv_err
> > +      - const: axi_mst_err
> > +
> > +  clocks:
> > +    items:
> > +      - description: CRU Main clock
> > +      - description: CPU Register access clock
> > +      - description: CRU image transfer clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: vclk
> > +      - const: pclk
> > +      - const: aclk
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    items:
> > +      - description: CRU_PRESETN reset terminal
> > +      - description: CRU_ARESETN reset terminal
> > +
> > +  reset-names:
> > +    items:
> > +      - const: presetn
> > +      - const: aresetn
> > +
> > +  ports:
> > +    $ref: /schemas/graph.yaml#/properties/ports
> > +
> > +    properties:
> > +      port@0:
> > +        $ref: /schemas/graph.yaml#/$defs/port-base
> > +        unevaluatedProperties: false
> > +        description:
> > +          Input port node, single endpoint describing a parallel input source.
> > +
> > +        properties:
> > +          endpoint:
> > +            $ref: video-interfaces.yaml#
> > +            unevaluatedProperties: false
> > +
> > +            properties:
> > +              hsync-active: true
> > +              vsync-active: true
> > +              bus-width: true
> > +              data-shift: true
> > +
> > +      port@1:
> > +        $ref: /schemas/graph.yaml#/properties/port
> > +        description:
> > +          Output port node, describing the RZ/G2L Image Processing module
> > +          connected the CSI-2 receiver
>
> Isn't this the port dedicated to the CSI-2 receiver input ?
>
Agreed.

> > +
> > +        properties:
> > +          endpoint@0:
> > +            $ref: /schemas/graph.yaml#/properties/endpoint
> > +            description: Endpoint connected to CSI2.
>
> And the andpoint should describe the connection between the CRU and
> the CSI-2 receiver ? (ie it should not contain CSI-2 specific
> properties, as those are specified by the CSI-2 receiver device node?)
>
Ok will drop the properties.

Cheers,
Prabhakar

> Thanks
>   j
> > +
> > +        anyOf:
> > +          - required:
> > +              - endpoint@0
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - interrupt-names
> > +  - clocks
> > +  - clock-names
> > +  - resets
> > +  - reset-names
> > +  - power-domains
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  # Device node example with CSI-2
> > +  - |
> > +    #include <dt-bindings/clock/r9a07g044-cpg.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    cru: video@10830000 {
> > +            compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
> > +            reg = <0x10830000 0x400>;
> > +            interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
> > +                         <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
> > +                         <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
> > +            interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
> > +            clocks = <&cpg CPG_MOD R9A07G044_CRU_VCLK>,
> > +                     <&cpg CPG_MOD R9A07G044_CRU_PCLK>,
> > +                     <&cpg CPG_MOD R9A07G044_CRU_ACLK>;
> > +            clock-names = "vclk", "pclk", "aclk";
> > +            power-domains = <&cpg>;
> > +            resets = <&cpg R9A07G044_CRU_PRESETN>,
> > +                     <&cpg R9A07G044_CRU_ARESETN>;
> > +            reset-names = "presetn", "aresetn";
> > +
> > +            ports {
> > +                    #address-cells = <1>;
> > +                    #size-cells = <0>;
> > +
> > +                    port@1 {
> > +                            #address-cells = <1>;
> > +                            #size-cells = <0>;
> > +
> > +                            reg = <1>;
> > +
> > +                            crucsi2: endpoint@0 {
> > +                                    reg = <0>;
> > +                                    remote-endpoint= <&csi2cru>;
> > +                            };
> > +                    };
> > +            };
> > +    };
> > --
> > 2.17.1
> >
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
new file mode 100644
index 000000000000..a03fc6ef0117
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
@@ -0,0 +1,152 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2022 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/G2L Camera Data Receiving Unit (CRU)
+
+maintainers:
+  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+
+description:
+  The RZ/G2L Camera Data Receiving Unit (CRU) device provides video input
+  capabilities for the Renesas RZ/G2L family of devices.
+
+  Depending on the instance the Image Processing input is connected to
+  external SoC pins or to a CSI-2 receiver.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,r9a07g044-cru     # RZ/G2{L,LC}
+          - const: renesas,rzg2l-cru
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 3
+
+  interrupt-names:
+    items:
+      - const: image_conv
+      - const: image_conv_err
+      - const: axi_mst_err
+
+  clocks:
+    items:
+      - description: CRU Main clock
+      - description: CPU Register access clock
+      - description: CRU image transfer clock
+
+  clock-names:
+    items:
+      - const: vclk
+      - const: pclk
+      - const: aclk
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    items:
+      - description: CRU_PRESETN reset terminal
+      - description: CRU_ARESETN reset terminal
+
+  reset-names:
+    items:
+      - const: presetn
+      - const: aresetn
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Input port node, single endpoint describing a parallel input source.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              hsync-active: true
+              vsync-active: true
+              bus-width: true
+              data-shift: true
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Output port node, describing the RZ/G2L Image Processing module
+          connected the CSI-2 receiver
+
+        properties:
+          endpoint@0:
+            $ref: /schemas/graph.yaml#/properties/endpoint
+            description: Endpoint connected to CSI2.
+
+        anyOf:
+          - required:
+              - endpoint@0
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  # Device node example with CSI-2
+  - |
+    #include <dt-bindings/clock/r9a07g044-cpg.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    cru: video@10830000 {
+            compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
+            reg = <0x10830000 0x400>;
+            interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
+            clocks = <&cpg CPG_MOD R9A07G044_CRU_VCLK>,
+                     <&cpg CPG_MOD R9A07G044_CRU_PCLK>,
+                     <&cpg CPG_MOD R9A07G044_CRU_ACLK>;
+            clock-names = "vclk", "pclk", "aclk";
+            power-domains = <&cpg>;
+            resets = <&cpg R9A07G044_CRU_PRESETN>,
+                     <&cpg R9A07G044_CRU_ARESETN>;
+            reset-names = "presetn", "aresetn";
+
+            ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@1 {
+                            #address-cells = <1>;
+                            #size-cells = <0>;
+
+                            reg = <1>;
+
+                            crucsi2: endpoint@0 {
+                                    reg = <0>;
+                                    remote-endpoint= <&csi2cru>;
+                            };
+                    };
+            };
+    };