[PATCH] ASoC: dt-bindings: simple-card: correct DAI subnodes pattern

[Krzysztof Kozlowski]

The simple-audio-card,dai-link node does not allow address/size-cells
thus children (cpu, codec) should come without unit addresses.  For
cases with multiple nodes of same type, require a dash before index
(e.g. cpu-x) and add trailing $ to the pattern to disallow other
characters.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
---
 .../devicetree/bindings/sound/simple-card.yaml       | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml
index ed19899bc94b..08743741b09e 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-card.yaml
@@ -244,9 +244,9 @@ patternProperties:
         maxItems: 1
 
     patternProperties:
-      "^cpu(@[0-9a-f]+)?":
+      "^cpu(-[0-9]+)?$":
         $ref: "#/definitions/dai"
-      "^codec(@[0-9a-f]+)?":
+      "^codec(-[0-9]+)?$":
         $ref: "#/definitions/dai"
     additionalProperties: false
 
@@ -462,16 +462,16 @@ examples:
 
             convert-channels = <8>; /* TDM Split */
 
-            sndcpu1: cpu0 {
+            sndcpu1: cpu-0 {
                 sound-dai = <&rcar_sound 1>;
             };
-            cpu1 {
+            cpu-1 {
                 sound-dai = <&rcar_sound 2>;
             };
-            cpu2 {
+            cpu-2 {
                 sound-dai = <&rcar_sound 3>;
             };
-            cpu3 {
+            cpu-3 {
                 sound-dai = <&rcar_sound 4>;
             };
             codec {
-- 
2.34.1