commit 0699faf7041357dc4eb132d097295ce06cee77ac
author Imre Deak <imre.deak@intel.com> Thu Aug 28 20:49:29 2025 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Thu Sep 04 15:30:29 2025 +0200
tree eeadf9c46470f0a0c70f24ce451479f681fc27aa
parent 6c9552de7f7e632abea46f0a2662074a6db966ba

Revert "drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS"

This reverts commit 65e46aeaf84aa88539bcff6b8077e05fbd0700da which is
commit a40c5d727b8111b5db424a1e43e14a1dcce1e77f upstream.

The upstream commit a40c5d727b8111b5db424a1e43e14a1dcce1e77f ("drm/dp:
Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS") the
reverted commit backported causes a regression, on one eDP panel at
least resulting in display flickering, described in detail at the Link:
below. The issue fixed by the upstream commit will need a different
solution, revert the backport for now.

Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: Sasha Levin <sashal@kernel.org>
Link: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14558
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>