Re: [PATCH v5 4/4] dt-bindings: soundwire: Convert text bindings to DT Schema

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On 08/11/2022 13:39, Srinivasa Rao Mandadapu wrote:
> Convert soundwire text bindings to DT Schema format.
> 
> Update interrupt property items as per device tree,
> as it is not appropriately described in text file.
> 
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
> Co-developed-by: Ratna Deepthi Kudaravalli <quic_rkudarav@xxxxxxxxxxx>
> Signed-off-by: Ratna Deepthi Kudaravalli <quic_rkudarav@xxxxxxxxxxx>
> ---
> Changes since V4:
>   -- Update interrupt names in example.
>   -- Fix blank lines.
>   -- Remove dependecy patch info.
> Changes since V3:
>   -- Remove subnode description and add appropriate pattern properties.
>   -- Add interrput names in example.
>   -- update some properties description.
>   -- Revert minIteams change in previous version.
>   -- Rebase to latest code base.
> Changes since V2:
>   -- Update commit message.
>   -- Add child node property.
>   -- Change file name.
>   -- Remove minIteams for few properties.
>   -- Remove redundant required properties.
>   -- Remove redundant description for wakeup-source property.
>   -- Update interrupt property items.
> Changes since V1:
>   -- Remove the status field in example.
>   -- Remove interrupt-names property in the required list.
>   -- Add the wakeup-source property.	
>  
>  .../devicetree/bindings/soundwire/qcom,sdw.txt     | 215 ------------------
>  .../bindings/soundwire/qcom,soundwire.yaml         | 244 +++++++++++++++++++++
>  2 files changed, 244 insertions(+), 215 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
>  create mode 100644 Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt b/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
> deleted file mode 100644
> index e0faed8..0000000
> --- a/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
> +++ /dev/null
> @@ -1,215 +0,0 @@
> -Qualcomm SoundWire Controller Bindings
> -
> -
> -This binding describes the Qualcomm SoundWire Controller along with its
> -board specific bus parameters.
> -
> -- compatible:
> -	Usage: required
> -	Value type: <stringlist>
> -	Definition: must be "qcom,soundwire-v<MAJOR>.<MINOR>.<STEP>",
> -		    Example:
> -			"qcom,soundwire-v1.3.0"
> -			"qcom,soundwire-v1.5.0"
> -			"qcom,soundwire-v1.5.1"
> -			"qcom,soundwire-v1.6.0"
> -			"qcom,soundwire-v1.7.0"
> -- reg:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: the base address and size of SoundWire controller
> -		    address space.
> -
> -- interrupts:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: should specify the SoundWire Controller core and optional
> -		    wake IRQ
> -
> -- interrupt-names:
> -	Usage: Optional
> -	Value type: boolean
> -	Value type: <stringlist>
> -	Definition: should be "core" for core and "wakeup" for wake interrupt.
> -
> -- wakeup-source:
> -	Usage: Optional
> -	Value type: boolean
> -	Definition: should specify if SoundWire Controller is wake up capable.
> -
> -- clock-names:
> -	Usage: required
> -	Value type: <stringlist>
> -	Definition: should be "iface" for SoundWire Controller interface clock
> -
> -- clocks:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: should specify the SoundWire Controller interface clock
> -
> -- #sound-dai-cells:
> -	Usage: required
> -	Value type: <u32>
> -	Definition: must be 1 for digital audio interfaces on the controller.
> -
> -- qcom,dout-ports:
> -	Usage: required
> -	Value type: <u32>
> -	Definition: must be count of data out ports
> -
> -- qcom,din-ports:
> -	Usage: required
> -	Value type: <u32>
> -	Definition: must be count of data in ports
> -
> -- qcom,ports-offset1:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: should specify payload transport window offset1 of each
> -		    data port. Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-offset2:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: should specify payload transport window offset2 of each
> -		    data port. Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-sinterval-low:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: should be sample interval low of each data port.
> -		    Out ports followed by In ports. Used for Sample Interval
> -		    calculation.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-word-length:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be size of payload channel sample.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-block-pack-mode:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be 0 or 1 to indicate the block packing mode.
> -		    0 to indicate Blocks are per Channel
> -		    1 to indicate Blocks are per Port.
> -		    Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-block-group-count:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be in range 1 to 4 to indicate how many sample
> -		    intervals are combined into a payload.
> -		    Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-lane-control:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be in range 0 to 7 to identify which	data lane
> -		    the data port uses.
> -		    Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-hstart:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be number identifying lowerst numbered coloum in
> -		    SoundWire Frame, i.e. left edge of the Transport sub-frame
> -		    for each port. Values between 0 and 15 are valid.
> -		    Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,ports-hstop:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be number identifying highest numbered coloum in
> -		    SoundWire Frame, i.e. the right edge of the Transport
> -		    sub-frame for each port. Values between 0 and 15 are valid.
> -		    Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- qcom,dports-type:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: should be one of the following types
> -		    0 for reduced port
> -		    1 for simple ports
> -		    2 for full port
> -		    Out ports followed by In ports.
> -		    Value of 0xFF indicates that this option is not implemented
> -		    or applicable for the respective data port.
> -		    More info in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -- reset:
> -	Usage: optional
> -	Value type: <prop-encoded-array>
> -	Definition: Should specify the SoundWire audio CSR reset controller interface,
> -		    which is required for SoundWire version 1.6.0 and above.
> -
> -- reset-names:
> -	Usage: optional
> -	Value type: <stringlist>
> -	Definition: should be "swr_audio_cgcr" for SoundWire audio CSR reset
> -		    controller interface.
> -
> -Note:
> -	More Information on detail of encoding of these fields can be
> -found in MIPI Alliance SoundWire 1.0 Specifications.
> -
> -= SoundWire devices
> -Each subnode of the bus represents SoundWire device attached to it.
> -The properties of these nodes are defined by the individual bindings.
> -
> -= EXAMPLE
> -The following example represents a SoundWire controller on DB845c board
> -which has controller integrated inside WCD934x codec on SDM845 SoC.
> -
> -soundwire: soundwire@c85 {
> -	compatible = "qcom,soundwire-v1.3.0";
> -	reg = <0xc85 0x20>;
> -	interrupts = <20 IRQ_TYPE_EDGE_RISING>;
> -	clocks = <&wcc>;
> -	clock-names = "iface";
> -	resets = <&lpass_audiocc LPASS_AUDIO_SWR_TX_CGCR>;
> -	reset-names = "swr_audio_cgcr";
> -	#sound-dai-cells = <1>;
> -	qcom,dports-type = <0>;
> -	qcom,dout-ports	= <6>;
> -	qcom,din-ports	= <2>;
> -	qcom,ports-sinterval-low = /bits/ 8  <0x07 0x1F 0x3F 0x7 0x1F 0x3F 0x0F 0x0F>;
> -	qcom,ports-offset1 = /bits/ 8 <0x01 0x02 0x0C 0x6 0x12 0x0D 0x07 0x0A >;
> -	qcom,ports-offset2 = /bits/ 8 <0x00 0x00 0x1F 0x00 0x00 0x1F 0x00 0x00>;
> -
> -	/* Left Speaker */
> -	left{
> -		....
> -	};
> -
> -	/* Right Speaker */
> -	right{
> -		....
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml b/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml
> new file mode 100644
> index 0000000..4114c5c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml
> @@ -0,0 +1,244 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soundwire/qcom,soundwire.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SoundWire Controller
> +
> +maintainers:
> +  - Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> +  - Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
> +
> +description:
> +  The Qualcomm SoundWire controller along with its board specific bus parameters.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,soundwire-v1.3.0
> +      - qcom,soundwire-v1.5.0
> +      - qcom,soundwire-v1.5.1
> +      - qcom,soundwire-v1.6.0
> +      - qcom,soundwire-v1.7.0
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    minItems: 1
> +    items:
> +      - description: specify the SoundWire controller core.
> +      - description: specify the Soundwire controller wake IRQ.
> +
> +  interrupt-names:
> +    minItems: 1
> +    items:
> +      - const: core
> +      - const: wakeup
> +
> +  clocks:
> +    items:
> +      - description: iface clock
> +
> +  clock-names:
> +    items:
> +      - const: iface
> +
> +  resets:
> +    items:
> +      - description: SWR_AUDIO_CGCR RESET
> +
> +  reset-names:
> +    items:
> +      - const: swr_audio_cgcr
> +
> +  '#sound-dai-cells':
> +    const: 1
> +
> +  '#address-cells':
> +    const: 2
> +
> +  '#size-cells':
> +    const: 0
> +
> +  wakeup-source: true
> +
> +  qcom,din-ports:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: count of data in ports
> +
> +  qcom,dout-ports:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: count of data out ports
> +
> +  qcom,ports-word-length:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Size of payload channel sample.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 5
> +
> +  qcom,ports-sinterval-low:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Sample interval low of each data port.
> +                 Out ports followed by In ports. Used for Sample Interval
> +                 calculation.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 8
> +
> +  qcom,ports-offset1:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Payload transport window offset1 of each
> +                 data port. Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 8
> +
> +  qcom,ports-offset2:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Payload transport window offset2 of each
> +                 data port. Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 8
> +
> +  qcom,ports-lane-control:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Identify which data lane the data port uses.
> +                 Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 5
> +
> +  qcom,ports-block-pack-mode:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Indicate the block packing mode.
> +                 0 to indicate Blocks are per Channel
> +                 1 to indicate Blocks are per Port.
> +                 Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 8
> +
> +  qcom,ports-hstart:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Identifying lowerst numbered coloum in
> +                 SoundWire Frame, i.e. left edge of the Transport sub-frame
> +                 for each port. Values between 0 and 15 are valid.

minimum: 0
maximum: 15
and drop that one sentence.

The same in other places.

> +                 Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 5
> +
> +  qcom,ports-hstop:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: Identifying highest numbered coloum in
> +                 SoundWire Frame, i.e. the right edge of the Transport
> +                 sub-frame for each port. Values between 0 and 15 are valid.
> +                 Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 5
> +
> +  qcom,ports-block-group-count:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: In range 1 to 4 to indicate how many sample
> +                 intervals are combined into a payload.
> +                 Out ports followed by In ports.
> +                 Value of 0xFF indicates that this option is not implemented
> +                 or applicable for the respective data port.
> +                 More info in MIPI Alliance SoundWire 1.0 Specifications.
> +    minItems: 3
> +    maxItems: 5
> +
> +  label:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^.*@[0-9a-f],[0-9a-f]$":
> +    type: object
> +    description: Child nodes for a standalone audio codec or speaker amplifier IC.
> +                 It has RX and TX Soundwire slave devices.

s/slave/secondary/

This is some odd indentation. Please use standard, like example-schema
is showing, so:

    description:
      Child nodes for a standalone audio codec or speaker amplifier IC.
      RX and TX Soundwire slave devices.

It looks you used such pattern in other places here - they should also
be corrected.

> +    properties:
> +      compatible:
> +        pattern: "^sdw[0-9a-f]{1}[0-9a-f]{4}[0-9a-f]{4}[0-9a-f]{2}$"
> +


Best regards,
Krzysztof




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