Some sai only connect one direction dma (rx/tx) in SOC. For example: imx8qxp sai5 only connect tx dma channel. So allow only one "rx" or "tx" for dma-names. Remove description under dmas because no user use index to get dma channel. All user use 'dma-names' to get correct dma channel. dma-names already in 'required' list. Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- Documentation/devicetree/bindings/sound/fsl,sai.yaml | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/fsl,sai.yaml b/Documentation/devicetree/bindings/sound/fsl,sai.yaml index 2456d958adeef..93e7737a49a7b 100644 --- a/Documentation/devicetree/bindings/sound/fsl,sai.yaml +++ b/Documentation/devicetree/bindings/sound/fsl,sai.yaml @@ -81,15 +81,13 @@ properties: dmas: minItems: 1 - items: - - description: DMA controller phandle and request line for RX - - description: DMA controller phandle and request line for TX + maxItems: 2 dma-names: minItems: 1 + maxItems: 2 items: - - const: rx - - const: tx + enum: [ rx, tx ] interrupts: items: -- 2.34.1