From 855e828c2665f21286e170c3f3c8656d8afcb72c Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 25 Oct 2024 19:02:58 +0300 Subject: [PATCH] drm/i915/dp: Write the source OUI during connector detection MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20241025160259.3088727-8-imre.deak@intel.com --- drivers/gpu/drm/i915/display/intel_dp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index b692d442f84aa..f884711cbad32 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -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;