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drm/i915/dp: Write the source OUI during connector detection

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The DP sink's capabilities, like DSC, may depend on the source OUI
written to the sink. On eDP this OUI value could have been reset before
the detection started if the panel power on it got disabled. Make sure
the OUI is re-written at the beginning of detection in this case, before
the sink capabilities are read out.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241025160259.3088727-8-imre.deak@intel.com
This commit is contained in:
Imre Deak 2024-10-25 19:02:58 +03:00
parent 4fbdc4a534
commit 855e828c26
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/intel_dp.c
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@ -5667,6 +5667,8 @@ intel_dp_detect(struct drm_connector *connector,
goto out_unset_edid;
}
intel_dp_init_source_oui(intel_dp);
ret = intel_dp_tunnel_detect(intel_dp, ctx);
if (ret == -EDEADLK) {
status = ret;