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Date:   Wed, 6 Nov 2019 15:15:24 -0600
From:   Benoit Parrot <bparrot@ti.com>
To:     Hans Verkuil <hverkuil@xs4all.nl>
CC:     <linux-media@vger.kernel.org>, Rob Herring <robh+dt@kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [Patch v2 19/20] dt-bindings: media: cal: convert binding to yaml
Message-ID: <20191106211524.7n2aycypunkphe55@ti.com>
References: <20191104193140.31145-1-bparrot@ti.com>
 <20191104193140.31145-20-bparrot@ti.com>
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Looks like I am missing a rebase for this specific patch where I address
Rob's comment about port@0 and port@1.

I'll update it in the next version.

Benoit

Benoit Parrot <bparrot@ti.com> wrote on Mon [2019-Nov-04 13:31:39 -0600]:
> Convert ti-cal.txt to ti,cal.yaml.
> 
> Signed-off-by: Benoit Parrot <bparrot@ti.com>
> ---
>  .../devicetree/bindings/media/ti,cal.yaml     | 172 ++++++++++++++++++
>  .../devicetree/bindings/media/ti-cal.txt      |  81 ---------
>  2 files changed, 172 insertions(+), 81 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/ti,cal.yaml
>  delete mode 100644 Documentation/devicetree/bindings/media/ti-cal.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/ti,cal.yaml b/Documentation/devicetree/bindings/media/ti,cal.yaml
> new file mode 100644
> index 000000000000..d19587ea6470
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/ti,cal.yaml
> @@ -0,0 +1,172 @@
> +# SPDX-License-Identifier: (GPL-2.0)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/ti,cal.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments DRA72x CAMERA ADAPTATION LAYER (CAL) Device Tree Bindings
> +
> +maintainers:
> +  - Benoit Parrot <bparrot@ti.com>
> +
> +description: |-
> +  The Camera Adaptation Layer (CAL) is a key component for image capture
> +  applications. The capture module provides the system interface and the
> +  processing capability to connect CSI2 image-sensor modules to the
> +  DRA72x device.
> +
> +  CAL supports 2 camera port nodes on MIPI bus. Each CSI2 camera port nodes
> +  should contain a 'port' child node with child 'endpoint' node. Please
> +  refer to the bindings defined in
> +  Documentation/devicetree/bindings/media/video-interfaces.txt.
> +
> +properties:
> +  compatible:
> +    enum:
> +      # for DRA72 controllers
> +      - ti,dra72-cal
> +      # for DRA72 controllers pre ES2.0
> +      - ti,dra72-pre-es2-cal
> +      # for DRA76 controllers
> +      - ti,dra76-cal
> +      # for AM654 controllers
> +      - ti,am654-cal
> +
> +  reg:
> +    minItems: 2
> +    items:
> +      - description: The CAL main register region
> +      - description: The RX Core0 (DPHY0) register region
> +      - description: The RX Core1 (DPHY1) register region
> +
> +  reg-names:
> +    minItems: 2
> +    items:
> +      - const: cal_top
> +      - const: cal_rx_core0
> +      - const: cal_rx_core1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  ti,camerrx-control:
> +    $ref: "/schemas/types.yaml#/definitions/phandle-array"
> +    description:
> +      phandle to the device control module and offset to the
> +      control_camerarx_core register
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: fck
> +
> +  power-domains:
> +    description:
> +      List of phandle and PM domain specifier as documented in
> +      Documentation/devicetree/bindings/power/power_domain.txt
> +    maxItems: 1
> +
> +  # See ./video-interfaces.txt for details
> +  ports:
> +    type: object
> +    additionalProperties: false
> +
> +    properties:
> +      "#address-cells":
> +        const: 1
> +
> +      "#size-cells":
> +        const: 0
> +
> +    patternProperties:
> +      '^port@[0-9a-fA-F]+$':
> +        type: object
> +        additionalProperties: false
> +
> +        properties:
> +          reg:
> +            minItems: 1
> +            items:
> +              - description: The port id
> +
> +        patternProperties:
> +          endpoint:
> +            type: object
> +            additionalProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +              remote-endpoint: true
> +
> +        required:
> +          - reg
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - interrupts
> +  - ti,camerrx-control
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    cal: cal@4845b000 {
> +        compatible = "ti,dra72-cal";
> +        reg = <0x4845B000 0x400>,
> +              <0x4845B800 0x40>,
> +              <0x4845B900 0x40>;
> +        reg-names = "cal_top",
> +                    "cal_rx_core0",
> +                    "cal_rx_core1";
> +        interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
> +        ti,camerrx-control = <&scm_conf 0xE94>;
> +
> +        ports {
> +              #address-cells = <1>;
> +              #size-cells = <0>;
> +
> +              csi2_0: port@0 {
> +                    reg = <0>;
> +                    csi2_phy0: endpoint {
> +                           remote-endpoint = <&csi2_cam0>;
> +                           clock-lanes = <0>;
> +                           data-lanes = <1 2>;
> +                    };
> +              };
> +        };
> +    };
> +
> +    i2c5: i2c@4807c000 {
> +        clock-frequency = <400000>;
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        camera-sensor@3c {
> +               compatible = "ovti,ov5640";
> +               reg = <0x3c>;
> +
> +               clocks = <&clk_ov5640_fixed>;
> +               clock-names = "xclk";
> +
> +               port {
> +                    csi2_cam0: endpoint {
> +                            remote-endpoint = <&csi2_phy0>;
> +                            clock-lanes = <0>;
> +                            data-lanes = <1 2>;
> +                    };
> +               };
> +        };
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/media/ti-cal.txt b/Documentation/devicetree/bindings/media/ti-cal.txt
> deleted file mode 100644
> index 2deb256e7032..000000000000
> --- a/Documentation/devicetree/bindings/media/ti-cal.txt
> +++ /dev/null
> @@ -1,81 +0,0 @@
> -Texas Instruments DRA72x CAMERA ADAPTATION LAYER (CAL)
> -------------------------------------------------------
> -
> -The Camera Adaptation Layer (CAL) is a key component for image capture
> -applications. The capture module provides the system interface and the
> -processing capability to connect CSI2 image-sensor modules to the
> -DRA72x device.
> -
> -Required properties:
> -- compatible:
> - Should be "ti,dra72-cal", for DRA72 controllers
> - Should be "ti,dra72-pre-es2-cal", for DRA72 controllers pre ES2.0
> - Should be "ti,dra76-cal", for DRA76 controllers
> - Should be "ti,am654-cal", for AM654 controllers
> -- reg:	CAL Top level, Receiver Core #0, Receiver Core #1 and Camera RX
> -	control address space
> -- reg-names: cal_top, cal_rx_core0, cal_rx_core1 and camerrx_control
> -	     registers
> -- interrupts: should contain IRQ line for the CAL;
> -- ti,camerrx-control: phandle to the device control module and offset to
> -		      the control_camerarx_core register.
> -		      This node is meant to replace the "camerrx_control"
> -		      reg entry above but "camerrx_control" is still
> -		      handled for backward compatibility.
> -
> -CAL supports 2 camera port nodes on MIPI bus. Each CSI2 camera port nodes
> -should contain a 'port' child node with child 'endpoint' node. Please
> -refer to the bindings defined in
> -Documentation/devicetree/bindings/media/video-interfaces.txt.
> -
> -Example:
> -	cal: cal@4845b000 {
> -		compatible = "ti,dra72-cal";
> -		reg = <0x4845B000 0x400>,
> -		      <0x4845B800 0x40>,
> -		      <0x4845B900 0x40>;
> -		reg-names = "cal_top",
> -			    "cal_rx_core0",
> -			    "cal_rx_core1";
> -		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
> -		ti,camerrx-control = <&scm_conf 0xE94>;
> -		#address-cells = <1>;
> -		#size-cells = <0>;
> -
> -		ports {
> -			#address-cells = <1>;
> -			#size-cells = <0>;
> -
> -			csi2_0: port@0 {
> -				reg = <0>;
> -				csi2_phy0: endpoint {
> -					remote-endpoint = <&csi2_cam0>;
> -					clock-lanes = <0>;
> -					data-lanes = <1 2>;
> -				};
> -			};
> -			csi2_1: port@1 {
> -				reg = <1>;
> -			};
> -		};
> -	};
> -
> -	i2c5: i2c@4807c000 {
> -		clock-frequency = <400000>;
> -
> -		camera-sensor@3c {
> -			compatible = "ovti,ov5640";
> -			reg = <0x3c>;
> -
> -			clocks = <&clk_fixed>;
> -			clock-names = "xclk";
> -
> -			port {
> -				csi2_cam0: endpoint {
> -					remote-endpoint = <&csi2_phy0>;
> -					clock-lanes = <0>;
> -					data-lanes = <1 2>;
> -				};
> -			};
> -		};
> -	};
> -- 
> 2.17.1
>