Re: [drm:simple_bridge_attach [simple_bridge]] *ERROR* Fix bridge driver to make connector optional!

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On Fri, Apr 17, 2020 at 02:18:11PM +0200, H. Nikolaus Schaller wrote:
> Hi Maxime,
> I have started to test v5.7-rc1 and can't fully boot the GTA04
> device any more.
> 
> What I see in the log is:
> 
> [   28.567840] [drm:simple_bridge_attach [simple_bridge]] *ERROR* Fix bridge driver to make connector optional!

General PSA (and for Laurent et al, i.e. entire team of people working on all
the varios bridge conversions):

Please don't make something an error before all in-tree users are
converted. Even an informational warning is often too much, even only very
few drivers are left using an old pattern.
-Daniel

> [   28.567871] omapdrm omapdrm.0: unable to attach bridge /ocp@68000000/dss@48050000/encoder@48050c00
> [   28.786529] omapdrm omapdrm.0: omap_modeset_init failed: ret=-22
> [   28.841552] omapdrm: probe of omapdrm.0 failed with error -22
> 
> This device uses the ti,opa362 chip which did have a dedicated
> omapdss driver before (which is removed now) and which seems to
> be supported by the simple_bridge now.
> 
> The opa362 is sitting in the video out path from
> 
> 	omapdrm -> venc -> opa362 -> video-out-connector.
> 
> What does this error mean? How can it be fixed?
> 
> BR and thanks,
> Nikolaus
> 
> _______________________________________________
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> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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