[PATCH 03/11] ASoC: dt-bindings: allwinner,sun4i-a10-spdif: Add compatible for A523

Chen-Yu Tsai
2025-10-20T17:11:20Z

The SPDIF hardware block in the A523 SoC has the same layout as the
H616 for the transmitter side. However unlike previous generations,
the hardware block now takes separate module clocks for the TX and RX
sides. This presumably allows the hardware to send and receive audio
streams at different sample rates. The new hardware also gained RX
insertion detection, and some extra information registers.

Add a new compatible for it without any fallbacks.

Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
.../sound/allwinner,sun4i-a10-spdif.yaml | 44 ++++++++++++++++---
1 file changed, 38 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml
index aa32dc950e72..1d089ba70f45 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml
@@ -23,6 +23,7 @@ properties:
- const: allwinner,sun8i-h3-spdif
- const: allwinner,sun50i-h6-spdif
- const: allwinner,sun50i-h616-spdif
+ - const: allwinner,sun55i-a523-spdif
- items:
- const: allwinner,sun8i-a83t-spdif
- const: allwinner,sun8i-h3-spdif
@@ -37,14 +38,12 @@ properties:
maxItems: 1

clocks:
- items:
- - description: Bus Clock
- - description: Module Clock
+ minItems: 2
+ maxItems: 3

clock-names:
- items:
- - const: apb
- - const: spdif
+ minItems: 2
+ maxItems: 3

# Even though it only applies to subschemas under the conditionals,
# not listing them here will trigger a warning because of the
@@ -65,6 +64,7 @@ allOf:
- allwinner,sun8i-h3-spdif
- allwinner,sun50i-h6-spdif
- allwinner,sun50i-h616-spdif
+ - allwinner,sun55i-a523-spdif

then:
required:
@@ -98,6 +98,38 @@ allOf:
- const: rx
- const: tx

+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun55i-a523-spdif
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: TX Clock
+ - description: RX Clock
+
+ clock-names:
+ items:
+ - const: apb
+ - const: tx
+ - const: rx
+ else:
+ properties:
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+
+ clock-names:
+ items:
+ - const: apb
+ - const: spdif
+
required:
- "#sound-dai-cells"
- compatible
--
2.47.3