Hi Laurent, On Tue, Aug 10, 2021 at 5:47 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > On Thu, May 20, 2021 at 8:51 AM Laurent Pinchart > <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> wrote: > > Replace the manual panel handling with usage of the DRM panel bridge > > helper. This simplifies the driver, and brings support for > > DRM_BRIDGE_ATTACH_NO_CONNECTOR as an added bonus. > > > > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> > > Thanks for your patch, which is now commit e9e056949c927e5b ("drm: > rcar-du: lvds: Convert to DRM panel bridge helper") in drm-next. > > This causes the following scary messages in the kernel log on Ebisu-4D: > > [drm:drm_bridge_attach] *ERROR* failed to attach bridge > Reverting this commit fixes the issue. Oops, that's not true (should not write tentative messages while booting a test kernel, and press send without checking first ;-) Reverting the commit doesn't seem to make a difference. But the parent 5bcc48395b9f35da ("drm: bridge: dw-hdmi: Attach to next bridge if available") of the bad commit is fine. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds