On Sun, May 19, 2024 at 04:31:31AM -0300, Val Packett wrote: > On the RK3066, there is a bit that must be cleared on flush, otherwise > we do not get display output (at least for RGB). > > Signed-off-by: Val Packett <val@xxxxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > --- > Hi! This was required to get display working on an old RK3066 tablet, > along with the next tiny patch in the series enabling the RGB output. > > I have spent quite a lot of time banging my head against the wall debugging > that display (especially since at the same time a scaler chip is used for > LVDS encoding), but finally adding debug prints showed that RK3066_SYS_CTRL0 > ended up being reset to all-zero after being written correctly upon init. > Looking at the register definitions in the vendor driver revealed that the > reason was pretty self-explanatory: "dma_stop". What commit id does this fix? thanks, greg k-h
