On Thu, Jun 08, 2023 at 01:19:27PM +0200, Robert Hodaszi wrote: > LS1028A is using DMA with LPUART. Having RX watermark set to 1, means > DMA transactions are started only after receiving the second character. > > On other platforms with newer LPUART IP, Receiver Idle Empty function > initiates the DMA request after the receiver is idling for 4 characters. > But this feature is missing on LS1028A, which is causing a 1-character > delay in the RX direction on this platform. > > Set RX watermark to 0 to initiate RX DMA after each character. > > Signed-off-by: Robert Hodaszi <robert.hodaszi@xxxxxxxx> What commit id does this fix? Should it go to stable releases? thanks, greg k-h
