drm/i915/ddi: Simplify the port enabling via DDI_BUF_CTL

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In the past intel_digital_port::dp.prepare_link_retrain() could be
called directly (vs. from a modeset) to retrain an enabled link. In that
case the port had to be first disabled and then re-enabled. That changed
with commit 2885d283cc ("drm/i915/dp: Retrain SST links via a modeset
commit"), after which the only way prepare_link_retrain() can be called
is from a modeset during link training when the port is still disabled.
Simplify things accordingly, assuming the disabled port state.

v2: Don't use drm_i915_private in intel_ddi_prepare_link_retrain(). (Jani)

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250214142001.552916-6-imre.deak@intel.com

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This commit is contained in:

Imre Deak 2025-02-14 16:19:55 +02:00

parent dc2b12b34f

commit d6e6cb5980

1 changed files with 5 additions and 19 deletions

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

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