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

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On 11/8/2022 6:15 PM, Krzysztof Kozlowski wrote:
Thanks for your time Krzyszto!!!
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.

As below mentioned it will also have 0xFF value. I think we can't restrict with minimum and maximum values.

Please suggest if my understanding is wrong.


+                 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.
Okay. Will change accordingly.

+    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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