drm/i915/dp_link_caps: Re-enable link configurations after sink caps change

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Re-enable link configurations after sink capabilities change or the link
got reset before updating the link capabilities (due to an RX_CAP_CHANGED
HPD IRQ for the currently connected sink, or a new sink getting
connected).

This makes resetting the link explicitly by calling
intel_dp_link_caps_reset() subsequently redundant; keep the existing
behavior wrt. this for now, adding only a TODO: to remove the explicit
reset.

While at it add documentation for intel_dp_link_caps_update().

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260701153204.4124150-10-imre.deak@intel.com

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This commit is contained in:

Imre Deak 2026-07-01 18:31:38 +03:00

parent cfc31f49d5

commit ae40784fa0

3 changed files with 43 additions and 5 deletions

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8

drivers/gpu/drm/i915/display/intel_dp.c

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37

drivers/gpu/drm/i915/display/intel_dp_link_caps.c

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3

drivers/gpu/drm/i915/display/intel_dp_link_caps.h

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