[PATCH v3 2/4] drm: rcar-du: lvds: Convert to DRM panel bridge helper

[Laurent Pinchart]

Hi Geert,

On Tue, Aug 10, 2021 at 05:51:57PM +0200, Geert Uytterhoeven wrote:
> On Tue, Aug 10, 2021 at 5:47 PM Geert Uytterhoeven wrote:
> > On Thu, May 20, 2021 at 8:51 AM Laurent Pinchart 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 at ideasonboard.com>
> >
> > 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.

Thanks for the report. I've reproduced this and will send a fix shortly.

-- 
Regards,

Laurent Pinchart