On Fri, Mar 01, 2024 at 04:06:35PM +0000, Conor Dooley wrote: > On Thu, Feb 29, 2024 at 02:31:20PM -0500, Frank Li wrote: > > On Thu, Feb 29, 2024 at 06:55:58PM +0000, Conor Dooley wrote: > > > On Tue, Feb 27, 2024 at 03:54:11PM -0500, Frank Li wrote: > > > > Some sai only connect one direction. So allow only "rx" or "tx" for > > > > dma-names. > > > > > > Which sai? Can you restrict this per compatible please, so that someone > > > cannot add 2 dmas for ones where only the tx is supported. > > > > SAI is exact the same. Only external connect one dma channel. > > Right. The wording made it sound like some SAIs were capable of this and > some were not, but what you actually mean is that all SAIs can sometimes > be connected in only one direction. IP is the same, just some instance only connect one direction dma. for example there are 6 sai instance in SOC. sai0, ... sai4 have both rx and tx. sai5 only connect tx.