On Fri, Sep 23, 2022 at 11:12:02AM +0200, Neil Armstrong wrote: > Hi Greg, > > On 13/09/2022 13:22, Greg Kroah-Hartman wrote: > > On Mon, Sep 12, 2022 at 08:48:24PM +0200, Stefan Agner wrote: > > > On 2022-09-12 18:08, Stefan Agner wrote: > > > > On 2022-08-15 19:58, Greg Kroah-Hartman wrote: > > > > > From: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > > > > > > > > > > [ Upstream commit 0af5e0b41110e2da872030395231ab19c45be931 ] > > > > > > > > > > This implements the necessary change to no more use the embedded > > > > > connector in dw-hdmi and use the dedicated bridge connector driver > > > > > by passing DRM_BRIDGE_ATTACH_NO_CONNECTOR to the bridge attach call. > > > > > > > > > > The necessary connector properties are added to handle the same > > > > > functionalities as the embedded dw-hdmi connector, i.e. the HDR > > > > > metadata, the CEC notifier & other flags. > > > > > > > > > > The dw-hdmi output_port is set to 1 in order to look for a connector > > > > > next bridge in order to get DRM_BRIDGE_ATTACH_NO_CONNECTOR working. > > > > > > > > HDMI on ODROID-N2+ was working with v5.15.60, and stopped working with > > > > v5.15.61. Reverting this commit (and two dependent refcount leak) to be > > > > the culprit. Reverting just the refcount leaks is not enough to get HDMI > > > > working, so I assume it is this commit. > > > > > > > > I haven't investigated much beyond that, maybe its simple a case of a > > > > missing kernel configuration? DRM_DISPLAY_CONNECTOR is compiled, and the > > > > module display_connector is loaded, so that part seemed to have worked. > > > > > > > > Any ideas welcome. > > > > > > > > FWIW, I track the issue in the HAOS tracker at > > > > https://github.com/home-assistant/operating-system/issues/2120. > > > > > > It seems that backporting commit 7cd70656d128 ("drm/bridge: > > > display-connector: implement bus fmts callbacks") fixes the problem > > > without reverting this commit. > > > > > > @Greg, can we backport this commit as well? > > > > sure, now queued up, thanks. > > Backport of 7cd70656d128 ("drm/bridge: display-connector: implement bus fmts callbacks") is still missing in 5.15-stable. I see it in the 5.15.68 release as commit 590b4f10e3a4. What am I missing? confused, greg k-h
