[lkml]   [2020]   [Nov]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [REGRESSION] omapdrm/N900 display broken
On 25/11/2020 11:07, Daniel Vetter wrote:

>> Laurent, does this ring any bells? The WARN comes in drm_atomic_bridge_chain_enable() when
>> drm_atomic_get_old_bridge_state() returns null for (presumably) sdi bridge.
>> I'm not sure why the bridge state would not be there.
> Lack of state on first modeset usually means your
> drm_mode_config_reset didn't create one. Or whatever it is you're
> using. I didn't look whether you're wiring this up correctly or not.
> We might even want to add a ->reset function to
> drm_private_state_funcs to make this work for everyone.

The bridge driver set atomic_enable and atomic_disable, but no other atomic funcs. It was supposed
to set the legacy enable & disable.


Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

 \ /
  Last update: 2020-11-27 09:45    [W:0.090 / U:0.552 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site