https://github.com/torvalds/linux
Revision 1dcc437427bbcebc8381226352f7ade08a271191 authored by Imre Deak on 22 August 2023, 11:30:15 UTC, committed by Rodrigo Vivi on 23 August 2023, 21:10:57 UTC
After the commit in the Fixes: line below, HPD polling stopped working on i915, since after that change calling drm_kms_helper_poll_enable() doesn't restart drm_mode_config::output_poll_work if the work was stopped (no connectors needing polling) and enabling polling for a connector (during runtime suspend or detecting an HPD IRQ storm). After the above change calling drm_kms_helper_poll_enable() is a nop after it's been called already and polling for some connectors was disabled/re-enabled. Fix this by calling drm_kms_helper_poll_reschedule() added in the previous patch instead, which reschedules the work whenever expected. Fixes: d33a54e3991d ("drm/probe_helper: sort out poll_running vs poll_enabled") CC: stable@vger.kernel.org # 6.4+ Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: dri-devel@lists.freedesktop.org Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230822113015.41224-2-imre.deak@intel.com (cherry picked from commit 50452f2f76852322620b63e62922b85e955abe94) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
1 parent a94e7cc
Tip revision: 1dcc437427bbcebc8381226352f7ade08a271191 authored by Imre Deak on 22 August 2023, 11:30:15 UTC
drm/i915: Fix HPD polling, reenabling the output poll work as needed
drm/i915: Fix HPD polling, reenabling the output poll work as needed
Tip revision: 1dcc437
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