On Wed, Mar 06, 2024 at 02:25:53PM -0500, Frank Li wrote: > On Wed, Mar 06, 2024 at 06:45:13PM +0000, Conor Dooley wrote: > > On Tue, Mar 05, 2024 at 12:33:04PM -0500, Frank Li wrote: > > > 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 | 13 ++++++------- > > > 1 file changed, 6 insertions(+), 7 deletions(-) > > > > > > diff --git a/Documentation/devicetree/bindings/sound/fsl,sai.yaml b/Documentation/devicetree/bindings/sound/fsl,sai.yaml > > > index 2456d958adeef..6f551c68d33db 100644 > > > --- a/Documentation/devicetree/bindings/sound/fsl,sai.yaml > > > +++ b/Documentation/devicetree/bindings/sound/fsl,sai.yaml > > > @@ -81,15 +81,14 @@ 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 > > > - - const: tx > > > + oneOf: > > > + - items: > > > + - const: rx > > > + - const: tx > > > + - enum: [ rx, tx ] > > > > I'm not entirely sure if this was Rob's suggestion, I got the impression > > he was suggesting that in the two items case we'd not care about the > > order. But while I think this is different to that suggestion it's also > > not wrong. > > I log this at cover-letter. b4 can't support write change log at every > patch yet. Rob's suggest was not work. dt-binding check complain too long > if there are two dma-names = "rx", "tx". Yeh, that is what happens if you just have dma-names: enum: [ rx, tx ] since that only allows one entry. Take a look at st,stm32-uart.yaml instead, for example.
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