On Wed, Jul 26, 2023 at 05:02:17PM +0200, Herve Codina wrote:

Looks generic, but no such property is defined. You don't need something 
like this unless there are multiple providers and you need each 
provider to define the number of cells.

+    const: 0
+
+  pinctrl:
+    $ref: /schemas/pinctrl/pinctrl.yaml#
+    additionalProperties: false
+
+    patternProperties:
+      '-pins$':
+        type: object
+        $ref: /schemas/pinctrl/pincfg-node.yaml#
+        additionalProperties: false
+
+        properties:
+          pins:
+            enum: [ RPA, RPB, RPC, RPD, XPA, XPB, XPC, XPD ]
+
+          function:
+            enum: [ SYPR, RFM, RFMB, RSIGM, RSIG, DLR, FREEZE, RFSP, LOS,
+                    SYPX, XFMS, XSIG, TCLK, XMFB, XSIGM, DLX, XCLK, XLT,
+                    GPI, GPOH, GPOL ]
+
+        required:
+          - pins
+          - function
+
+  lantiq,data-rate-bps:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [2048000, 4096000, 8192000, 16384000]
+    default: 2048000
+    description:
+      Data rate (bit per seconds) on the system highway.
+
+  lantiq,clock-falling-edge:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Data is sent on falling edge of the clock (and received on the rising
+      edge). If 'clock-falling-edge' is not present, data is sent on the
+      rising edge (and received on the falling edge).
+
+  lantiq,channel-phase:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3, 4, 5, 6, 7]
+    default: 0
+    description:
+      The pef2256 delivers a full frame (32 8bit time-slots in E1 and 24 8bit
+      time-slots 8 8bit signaling in E1/J1) every 125us. This lead to a data
+      rate of 2048000 bit/s. When lantiq,data-rate-bps is more than 2048000
+      bit/s, the data (all 32 8bit) present in the frame are interleave with
+      unused time-slots. The lantiq,channel-phase property allows to set the
+      correct alignment of the interleave mechanism.
+      For instance, suppose lantiq,data-rate-bps = 8192000 (ie 4*2048000), and
+      lantiq,channel-phase = 2, the interleave schema with unused time-slots
+      (nu) and used time-slots (XX) for TSi is
+        nu nu XX nu nu nu XX nu nu nu XX nu
+        <-- TSi --> <- TSi+1 -> <- TSi+2 ->
+      With lantiq,data-rate-bps = 8192000, and lantiq,channel-phase = 1, the
+      interleave schema is
+        nu XX nu nu nu XX nu nu nu XX nu nu
+        <-- TSi --> <- TSi+1 -> <- TSi+2 ->
+      With lantiq,data-rate-bps = 4096000 (ie 2*2048000), and
+      lantiq,channel-phase = 1, the interleave schema is
+        nu    XX    nu    XX    nu    XX
+        <-- TSi --> <- TSi+1 -> <- TSi+2 ->
+
+patternProperties:
+  '^codec(-([0-9]|[1-2][0-9]|3[0-1]))?$':
+    type: object
+    $ref: /schemas/sound/dai-common.yaml
+    unevaluatedProperties: false
+    description:
+      Codec provided by the pef2256. This codec allows to use some of the PCM
+      system highway time-slots as audio channels to transport audio data over
+      the E1/T1/J1 lines.
+      The time-slots used by the codec must be set and so, the properties
+      'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and
+      'dai-tdm-slot-rx-mask' must be present in the sound card node for
+      sub-nodes that involve the codec. The codec uses 8bit time-slots.
+      'dai-tdm-tdm-slot-with' must be set to 8.
+      The tx and rx masks define the pef2256 time-slots assigned to the codec.
+
+    properties:
+      compatible:
+        const: lantiq,pef2256-codec
+
+      '#sound-dai-cells':
+        const: 0
+
+      framer:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description:
+          phandle to the framer node

That's just the parent. Why do you need this?

Rob