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-rw-r--r--Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml
index 666408d32f5c..d8993b5d457a 100644
--- a/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml
+++ b/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml
@@ -48,6 +48,10 @@ properties:
power-domains:
maxItems: 1
+ memory-region:
+ description: memory region for audio DMA buffers
+ maxItems: 1
+
required:
- compatible
- reg
@@ -90,4 +94,5 @@ examples:
"i2s2_m",
"i2s3_m",
"i2s3_b";
+ memory-region = <&afe_dma_mem>;
};