On Mon, 05 Feb 2024 11:17:34 +0100 Frank Oltmanns <fr...@oltmanns.dev> wrote:
> Hi Diego, > > On 2024-02-05 at 09:52:33 +0100, Diego Roversi <die...@tiscali.it> wrote: > > Hello, > > > > I've use git bisect, and I found that the problem is introduced with this > > commit: > > > > commit 1b722407a13b7f8658d2e26917791f32805980a2 (HEAD) > > Merge: f8824e151fbf 5ff2977b1976 > > Author: Linus Torvalds <torva...@linux-foundation.org> > > Date: Thu Jun 29 11:00:17 2023 -0700 > > > > Merge tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm > > > > > > But this is a lot of stuff, so I'm not sure what is the real issue. > > > > While I don't know how to continue the bisect for this merge, the > content of the pull request that led to this merge commint is here: > https://lore.kernel.org/all/CAPM=9twgy8jvci0ipwdfupepvpf6bxmygbtt8hxwkqdsqfc...@mail.gmail.com/ > > One can see that there are three commits that touch sunxi-ng: > > Roman Beranek (2): > drm: sun4i: rename sun4i_dotclock to sun4i_tcon_dclk > drm: sun4i: calculate proper DCLK rate for DSI > > XuDong Liu (1): > drm: sun4i_tcon: use devm_clk_get_enabled in `sun4i_tcon_init_clocks` > > As I wrote in IRC, I highly suspect > 4795c78768bcbd58d4ffab650674d314dc6dd77 "drm: sun4i: calculate proper > DCLK rate for DSI" to be the culprit here. To confirm, you could try > reverting it or the other two. > Thanks for advices. I found that the bug was introduced in the kernel pre-6.5 after the rc1 with this patch: https://lore.kernel.org/all/20230505052110.67514-2...@crly.cz/ For newer kernel the workaround you suggested, disabling CLK_SET_RATE_PARENT, works fine. Thanks again, Diego. -- Diego Roversi <die...@tiscali.it> -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/20240209161713.ed06d640d74de54ad56be3fa%40tiscali.it.
