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

[Helen Koike]

Hi,

Thank you for your review.

On 1/7/20 12:01 PM, Sakari Ailus wrote:
> 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@xxxxxxxxxxxxx>
>>
>> ---
>>
>> 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@xxxxxxxxxxxxx>
>> +
>> +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.

After the discussions, we have a single port for now, but we might have port@1
for tx1rx1 in the future.

Helen

> 
>> +        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>;
>> +                      };
>> +                  };
>> +            };
>> +        };
>> +    };
>