Re: [PATCH v12 08/11] media: staging: dt-bindings: add Rockchip ISP1 yaml bindings

[Sakari Ailus <sakari.ailus@linux.intel.com>]

Hi Helen,

On Fri, Dec 27, 2019 at 05:01:13PM -0300, Helen Koike wrote:
> Add yaml DT bindings for Rockchip ISP1.
> 
> This was tested and verified with:
> mv drivers/staging/media/rkisp1/Documentation/devicetree/bindings/media/rockchip-isp1.yaml Documentation/devicetree/bindings/media/
> make dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/media/rockchip-isp1.yaml
> make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/media/rockchip-isp1.yaml
> 
> Signed-off-by: Helen Koike <helen.koike@collabora.com>
> 
> ---
> 
> Changes in v12:
> - The commit replaces the following commit in previous series named
> media: staging: dt-bindings: Document the Rockchip ISP1 bindings
> This new patch adds yaml binding and was verified with
> make dtbs_check and make dt_binding_check
> 
> Changes in v11:
> - add clock-names values
> 
> Changes in v10:
> - unsquash
> 
> Changes in v9:
> - squash
> - move to staging
> 
> Changes in v8:
> - fix title division style
> 
> Changes in v7:
> - update document with new design and tested example
> 
>  .../bindings/media/rockchip-isp1.yaml         | 193 ++++++++++++++++++
>  1 file changed, 193 insertions(+)
>  create mode 100644 drivers/staging/media/rkisp1/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
> 
> diff --git a/drivers/staging/media/rkisp1/Documentation/devicetree/bindings/media/rockchip-isp1.yaml b/drivers/staging/media/rkisp1/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
> new file mode 100644
> index 000000000000..4d1b2c67a4cd
> --- /dev/null
> +++ b/drivers/staging/media/rkisp1/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
> @@ -0,0 +1,193 @@
> +# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/rockchip-isp1.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip SoC Image Signal Processing unit v1
> +
> +maintainers:
> +  - Helen Koike <helen.koike@collabora.com>
> +
> +description: |
> +  Rockchip ISP1 is the Camera interface for the Rockchip series of SoCs
> +  which contains image processing, scaling, and compression funcitons.

"functions"

> +
> +properties:
> +  compatible:
> +    const: rockchip,rk3399-cif-isp
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  iommus:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  phys:
> +    maxItems: 1
> +    description: phandle for the PHY port
> +
> +  phy-names:
> +    const: dphy
> +
> +  clocks:
> +    items:
> +      - description: ISP clock
> +      - description: ISP aclk clock
> +      - description: ISP aclk wrapper clock
> +      - description: ISP hclk clock
> +      - description: ISP hclk wrapper clock
> +
> +  clock-names:
> +    items:
> +      - const: clk_isp
> +      - const: aclk_isp
> +      - const: aclk_isp_wrap
> +      - const: hclk_isp
> +      - const: hclk_isp_wrap
> +
> +  # See ./video-interfaces.txt for details
> +  ports:
> +    type: object
> +    additionalProperties: false
> +
> +    properties:
> +      "#address-cells":
> +        const: 1
> +
> +      "#size-cells":
> +        const: 0
> +
> +      port@0:

If you only have a single port node, you could drop reg as well as @0 on
the port node.

> +        type: object
> +        additionalProperties: false
> +
> +        properties:
> +          "#address-cells":
> +            const: 1
> +
> +          "#size-cells":
> +            const: 0
> +
> +          reg:
> +            const: 0
> +            description: port identifier.
> +
> +        patternProperties:
> +          endpoint:
> +            type: object
> +            additionalProperties: false
> +
> +            properties:
> +              reg:
> +                maxItems: 1
> +                description: endpoint identifier.
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +              remote-endpoint: true
> +
> +    required:
> +      - port@0
> +
> +required:
> +  - compatible
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - power-domains
> +  - iommus
> +  - phys
> +  - phy-names
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +
> +    #include <dt-bindings/clock/rk3399-cru.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/rk3399-power.h>
> +
> +    parent0: parent@0 {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        isp0: isp0@ff910000 {
> +            compatible = "rockchip,rk3399-cif-isp";
> +            reg = <0x0 0xff910000 0x0 0x4000>;
> +            interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH 0>;
> +            clocks = <&cru SCLK_ISP0>,
> +                     <&cru ACLK_ISP0>, <&cru ACLK_ISP0_WRAPPER>,
> +                     <&cru HCLK_ISP0>, <&cru HCLK_ISP0_WRAPPER>;
> +            clock-names = "clk_isp",
> +                          "aclk_isp", "aclk_isp_wrap",
> +                          "hclk_isp", "hclk_isp_wrap";
> +            power-domains = <&power RK3399_PD_ISP0>;
> +            iommus = <&isp0_mmu>;
> +            phys = <&dphy>;
> +            phy-names = "dphy";
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +                    reg = <0>;
> +
> +                    mipi_in_wcam: endpoint@0 {
> +                        reg = <0>;
> +                        remote-endpoint = <&wcam_out>;
> +                        data-lanes = <1 2>;
> +                    };
> +
> +                    mipi_in_ucam: endpoint@1 {
> +                        reg = <1>;
> +                        remote-endpoint = <&ucam_out>;
> +                        data-lanes = <1>;
> +                    };
> +                };
> +            };
> +        };
> +
> +        i2c7: i2c@ff160000 {
> +            clock-frequency = <400000>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            wcam: camera@36 {
> +                compatible = "ovti,ov5695";
> +                reg = <0x36>;
> +
> +                port {
> +                    wcam_out: endpoint {
> +                        remote-endpoint = <&mipi_in_wcam>;
> +                        data-lanes = <1 2>;
> +                    };
> +                };
> +            };
> +
> +            ucam: camera@3c {
> +                compatible = "ovti,ov2685";
> +                reg = <0x3c>;
> +
> +                  port {
> +                      ucam_out: endpoint {
> +                          remote-endpoint = <&mipi_in_ucam>;
> +                          data-lanes = <1>;
> +                      };
> +                  };
> +            };
> +        };
> +    };

-- 
Kind regards,

Sakari Ailus

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