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-rw-r--r--dts/Bindings/sound/designware-i2s.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/dts/Bindings/sound/designware-i2s.txt b/dts/Bindings/sound/designware-i2s.txt
index 7bb54247f8..6a536d570e 100644
--- a/dts/Bindings/sound/designware-i2s.txt
+++ b/dts/Bindings/sound/designware-i2s.txt
@@ -12,6 +12,10 @@ Required properties:
one for receive.
- dma-names : "tx" for the transmit channel, "rx" for the receive channel.
+Optional properties:
+ - interrupts: The interrupt line number for the I2S controller. Add this
+ parameter if the I2S controller that you are using does not support DMA.
+
For more details on the 'dma', 'dma-names', 'clock' and 'clock-names'
properties please check:
* resource-names.txt