Hi, On Fri, Apr 10, 2020 at 5:56 AM Enric Balletbo Serra <eballetbo@xxxxxxxxx> wrote: > > Hi Milan, > > Right, this is an annoying issue but also known, unfortunately, I > personally didn't have time to look at. but it is in my TODO. Random shot in the dark, but any chance somehow your PHY clock and PCLK for the eDP don't match? If they don't then (IIRC) you'll get random failures to access eDP registers. Some history in <https://crrev.com/c/433393>. It looks like the changes in that patch are upstream but if something else happened to make your PHY and PCLK mismatch it could cause similar symptoms. ...of course it's always possible (probable) that it's something different, but since that was such a weird and hard-to-track-down problem I figured I'd at least make sure it wasn't that. -Doug _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
