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drm/i915/dp: Don't WARN on failed link-retrain modeset

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After a bad link state is detected, the sink capabilities with which the
link was originally trained could have changed: for instance another
sink got connected or the retraining was forced after the rate/lane count
got decreased (as a fallback). In these cases the retraining modeset
fails as expected also printing a debug message, so don't WARN on it.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240712135724.660399-3-imre.deak@intel.com
This commit is contained in:
Imre Deak 2024-07-12 16:57:24 +03:00
parent ec92c47d7d
commit f6f22012e6
1 changed files with 0 additions and 3 deletions
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3
drivers/gpu/drm/i915/display/intel_dp.c
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@ -5282,14 +5282,11 @@ static int intel_dp_retrain_link(struct intel_encoder *encoder,
void intel_dp_link_check(struct intel_encoder *encoder)
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
struct drm_modeset_acquire_ctx ctx;
int ret;
intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret)
ret = intel_dp_retrain_link(encoder, &ctx);
drm_WARN_ON(&i915->drm, ret);
}
void intel_dp_check_link_state(struct intel_dp *intel_dp)