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[94.27.194.111]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4872718dfdfsm78504085e9.30.2026.03.30.06.16.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Mar 2026 06:16:28 -0700 (PDT) From: Timur =?UTF-8?B?S3Jpc3TDs2Y=?= To: stable@vger.kernel.org, Rosen Penev Cc: Alex Deucher , Christian =?UTF-8?B?S8O2bmln?= , "Pan, Xinhui" , David Airlie , Daniel Vetter , Harry Wentland , Leo Li , Greg Kroah-Hartman , Bin Lan , He Zhe , Vitaly Prosyak , Alex Hung , Rodrigo Siqueira , Mario Limonciello , Ray Wu , Wayne Lin , Roman Li , Eric Yang , Tony Cheng , Mauro Rossi , "open list:RADEON and AMDGPU DRM DRIVERS" , "open list:DRM DRIVERS" , open list Subject: Re: [PATCH for 6.12 3/9] drm/amd/display: Disable fastboot on DCE 6 too Date: Mon, 30 Mar 2026 15:16:26 +0200 Message-ID: <2312151.9o76ZdvQCi@timur-hyperion> In-Reply-To: <20260326234716.16723-4-rosenp@gmail.com> References: <20260326234716.16723-1-rosenp@gmail.com> <20260326234716.16723-4-rosenp@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Friday, March 27, 2026 12:47:10=E2=80=AFAM Central European Summer Time = Rosen Penev=20 wrote: > From: Timur Krist=C3=B3f >=20 > [ Upstream commit 7495962cbceb967e095233a5673ea71f3bcdee7e ] >=20 > It already didn't work on DCE 8, > so there is no reason to assume it would on DCE 6. >=20 > Signed-off-by: Timur Krist=C3=B3f > Reviewed-by: Rodrigo Siqueira > Reviewed-by: Alex Deucher > Reviewed-by: Alex Hung > Signed-off-by: Alex Deucher > Signed-off-by: Rosen Penev This patch is incorrect and should not be backported. (Note that the error is already fixed upstream. For stable kernels IMO it's= =20 best to drop this one.) > --- > drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) >=20 > diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c > b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c index > df69e0cebf78..7dc99c85b8ea 100644 > --- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c > +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c > @@ -1910,10 +1910,8 @@ void dce110_enable_accelerated_mode(struct dc *dc, > struct dc_state *context) >=20 > get_edp_streams(context, edp_streams, &edp_stream_num); >=20 > - // Check fastboot support, disable on DCE8 because of blank=20 screens > - if (edp_num && edp_stream_num && dc->ctx->dce_version !=3D=20 DCE_VERSION_8_0 > && - dc->ctx->dce_version !=3D DCE_VERSION_8_1 && > - dc->ctx->dce_version !=3D DCE_VERSION_8_3) { > + /* Check fastboot support, disable on DCE 6-8 because of blank=20 screens */ > + if (edp_num && edp_stream_num && dc->ctx->dce_version <=20 DCE_VERSION_10_0) > { for (i =3D 0; i < edp_num; i++) { > edp_link =3D edp_links[i]; > if (edp_link !=3D edp_streams[0]->link)