[PATCH v3 1/7] ASoC: dt-bindings: sun8i-codec: Increase #sound-dai-cells

Samuel Holland samuel at sholland.org
Fri Apr 30 05:58:53 CEST 2021


Increase sound-dai-cells to 1 to allow using the DAIs in the codec
corresponding to AIF2 and AIF3.

The generic ASoC OF code supports a #sound-dai-cells value of 0 or 1
with no impact to the driver, so this is a backward-compatible change.

Signed-off-by: Samuel Holland <samuel at sholland.org>
---
 .../bindings/sound/allwinner,sun8i-a33-codec.yaml         | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
index 67405e6d8168..19f111f40225 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
@@ -12,7 +12,11 @@ maintainers:
 
 properties:
   "#sound-dai-cells":
-    const: 0
+    minimum: 0
+    maximum: 1
+    description:
+      A value of 0 is deprecated. When used, it only allows access to
+      the ADC/DAC and AIF1 (the CPU DAI), not the other two AIFs/DAIs.
 
   compatible:
     oneOf:
@@ -50,7 +54,7 @@ additionalProperties: false
 examples:
   - |
     audio-codec at 1c22e00 {
-      #sound-dai-cells = <0>;
+      #sound-dai-cells = <1>;
       compatible = "allwinner,sun8i-a33-codec";
       reg = <0x01c22e00 0x400>;
       interrupts = <0 29 4>;
-- 
2.26.3



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