[PATCH v7 3/4] ASoC: dt-bindings: fsl-sai: allow only one dma-names

From: Frank Li
Date: Mon Mar 18 2024 - 15:01:57 EST


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.

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
Documentation/devicetree/bindings/sound/fsl,sai.yaml | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/fsl,sai.yaml b/Documentation/devicetree/bindings/sound/fsl,sai.yaml
index 2456d958adeef..a5d9c246cc476 100644
--- a/Documentation/devicetree/bindings/sound/fsl,sai.yaml
+++ b/Documentation/devicetree/bindings/sound/fsl,sai.yaml
@@ -81,14 +81,12 @@ 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
items:
- - const: rx
+ - enum: [ rx, tx ]
- const: tx

interrupts:

--
2.34.1