On Fri, 27 Mar 2015, Alex Deucher <[email protected]> wrote: > On Fri, Mar 27, 2015 at 8:08 AM, Jani Nikula <[email protected]> wrote: >> On Thu, 26 Mar 2015, Daniel Vetter <[email protected]> wrote: >>> On Thu, Mar 26, 2015 at 10:42:00AM +0200, Jani Nikula wrote: >>>> If the user supplies EDID through firmware or debugfs override, the >>>> driver callbacks are bypassed and the connector ELD does not get >>>> updated, and audio fails. Set ELD for firmware and debugfs EDIDs too. >>>> >>>> There should be no harm in gratuitously doing this for non HDMI/DP >>>> connectors, as it's still up to the driver to use the ELD, if any. >>>> >>>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82349 >>>> Reference: https://bugs.freedesktop.org/show_bug.cgi?id=80691 >>>> Reported-by: Emil <[email protected]> >>>> Reported-by: Rob Engle <[email protected]> >>>> Tested-by: Jolan Luff <[email protected]> >>>> Cc: [email protected] >>>> Signed-off-by: Jani Nikula <[email protected]> >>> >>> Since it's harmless I wonder whether we shouldn't just do this in >>> drm_add_edid_modes unconditionally. But this looks like the right minimal >>> patch for -fixes, so Reviewed-by: Daniel Vetter <[email protected]> >> >> While I was hoping to gather review from outside of drm/i915 folks, I >> picked this up and pushed to our new topic/drm-fixes branch of [1]. >> >> I intend to keep picking up (occasional, non-controversial) drm core >> fixes aimed at the current development (-rc) kernels, to ensure they're >> not dropped, and sending pull requests to Dave as needed. He'll have the >> final call whether to pull or not, of course. This is similar to what >> Daniel does with the topic/drm-misc branch for drm-next. >> >> Please let me know if you have any feedback on this. > > > The patch seems fine to me. However, if we are always going to set > the ELD for the override cases, why don't we also always set it for > the non-override cases rather than making each driver do it.
So I think this is a good minimal patch for fixes/stable as a first step. But I agree, we should think about the follow-up. I already had a glance before, and doing so really begs the question why we wouldn't add a helper to handle all of drm_add_edid_modes, drm_edid_to_eld, and drm_mode_connector_update_edid_property properly? Similar to intel_connector_update_modes in i915/intel_modes.c. All drivers do this stuff, although with subtle differences especially wrt error handling. BR, Jani. > > Alex > >> >> Thanks, >> Jani. >> >> >> [1] http://cgit.freedesktop.org/drm-intel >> >> -- >> Jani Nikula, Intel Open Source Technology Center -- Jani Nikula, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
