On Fri, Nov 26, 2021 at 04:43:49PM +0100, Maxime Ripard wrote:
Hi Daniel,
On Fri, Nov 19, 2021 at 05:01:14PM +0100, Daniel Vetter wrote:
On Thu, Nov 18, 2021 at 11:38:01AM +0100, Maxime Ripard wrote:
This is a follow-up of the work to support the interactions between the hotplug and the scrambling support for vc4:
https://lore.kernel.org/dri-devel/20210507150515.257424-11-maxime@cerno.tech... https://lore.kernel.org/dri-devel/20211025152903.1088803-10-maxime@cerno.tec...
Ville feedback was that the same discussion happened some time ago for i915, and resulted in a function to do an full disable/enable cycle on reconnection to avoid breaking the HDMI 2.0 spec.
This series improves the current scrambling support by adding generic helpers for usual scrambling-related operations, and builds upon them to provide a generic alternative to intel_hdmi_reset_link.
Out of curiosity, can we rebuild intel_hdmi_reset_link on top of these? Always better to have two drivers to actually show the helpers help, than just one.
Unfortunately, I don't have any Intel system I can test it on, and it looks like the changes wouldn't be trivial.
Maybe we can use dw-hdmi instead?
Hm I guess so, maybe Ville can be motivated. Just figured since this seems at least inspired by i915 code.
Also we have CI running on intel-gfx, so if you just type well enough it generally works out and CI catches anything you got wrong. Christian König is pretty good at not breaking i915 with all the dma-buf and ttm changes nowadays, much better than random arm socs dying. -Daniel