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drm/i915/mst: ack sink irq ESI for link status changes
author
Jani Nikula
<jani.nikula@intel.com>
Wed, 12 Jan 2022 11:03:18 +0000
(13:03 +0200)
committer
Jani Nikula
<jani.nikula@intel.com>
Fri, 21 Jan 2022 10:56:03 +0000
(12:56 +0200)
Only specific event status indicators caused the link status to be
acked. Be sure to ack the link status change event.
Arguably we should track which bits to actually clear in ESI instead of
the wholesale approach.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20220112110319.1172110-6-jani.nikula@intel.com
drivers/gpu/drm/i915/display/intel_dp.c
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diff --git
a/drivers/gpu/drm/i915/display/intel_dp.c
b/drivers/gpu/drm/i915/display/intel_dp.c
index
d8a0ba3
..
95e9f72
100644
(file)
--- a/
drivers/gpu/drm/i915/display/intel_dp.c
+++ b/
drivers/gpu/drm/i915/display/intel_dp.c
@@
-3699,6
+3699,7
@@
intel_dp_check_mst_status(struct intel_dp *intel_dp)
esi[3] & LINK_STATUS_CHANGED) {
if (!intel_dp_mst_link_status(intel_dp))
link_ok = false;
+ handled = true;
}
intel_dp_mst_hpd_irq(intel_dp, esi, &handled);