ASoC: dt-bindings: ti, j721e-cpb-audio: Document support for j7200-cpb

j721e or j7200 SOM can be attached to the same Common Processor Board (CPB)

With the j7200 SOM only the 48KHz family parent clock is available and
McASP0 is used for the audio.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200910124110.19361-2-peter.ujfalusi@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/ti,j721e-cpb-audio.yaml

@@ -18,18 +18,25 @@ description: |
   PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via
   different HSDIVIDER.
 
-  Clocking setup for 48KHz family:
+  Clocking setup for j721e:
+    48KHz family:
     PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
           |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2  ---> pcm3168a.SCKI
 
-  Clocking setup for 44.1KHz family:
+    44.1KHz family:
     PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
            |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2  ---> pcm3168a.SCKI
 
+  Clocking setup for j7200:
+    48KHz family:
+    PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK ---> McASP0.auxclk
+          |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2  ---> pcm3168a.SCKI
+
 properties:
   compatible:
-    items:
-      - const: ti,j721e-cpb-audio
+    enum:
+      - ti,j721e-cpb-audio
+      - ti,j7200-cpb-audio
 
   model:
     $ref: /schemas/types.yaml#/definitions/string
@@ -44,6 +51,34 @@ properties:
     $ref: /schemas/types.yaml#/definitions/phandle
 
   clocks:
+    minItems: 4
+    maxItems: 6
+
+  clock-names:
+    minItems: 4
+    maxItems: 6
+
+required:
+  - compatible
+  - model
+  - ti,cpb-mcasp
+  - ti,cpb-codec
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,j721e-cpb-audio
+
+    then:
+      properties:
+        clocks:
+          minItems: 6
           items:
             - description: AUXCLK clock for McASP used by CPB audio
             - description: Parent for CPB_McASP auxclk (for 48KHz)
@@ -61,15 +96,28 @@ properties:
             - const: cpb-codec-scki-48000
             - const: cpb-codec-scki-44100
 
-required:
-  - compatible
-  - model
-  - ti,cpb-mcasp
-  - ti,cpb-codec
-  - clocks
-  - clock-names
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,j7200-cpb-audio
 
-additionalProperties: false
+    then:
+      properties:
+        clocks:
+          maxItems: 4
+          items:
+            - description: AUXCLK clock for McASP used by CPB audio
+            - description: Parent for CPB_McASP auxclk (for 48KHz)
+            - description: SCKI clock for the pcm3168a codec on CPB
+            - description: Parent for CPB_SCKI clock (for 48KHz)
+
+        clock-names:
+          items:
+            - const: cpb-mcasp-auxclk
+            - const: cpb-mcasp-auxclk-48000
+            - const: cpb-codec-scki
+            - const: cpb-codec-scki-48000
 
 examples:
   - |+