linux-stable.git/drivers/gpu/drm/amd/display, branch v5.7.11

drm/amd/display: add dmcub check on RENOIR

2020-07-29T08:19:37+00:00

[ Upstream commit 3b2e973dff59d88bee1d814ddf8762a24fc02b60 ]

RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Acked-by: Alex Deucher 
Reviewed-by: Nicholas Kazlauskas 
Signed-off-by: Aaron Ma 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

drm/amd/display: Check DMCU Exists Before Loading

2020-07-29T08:19:37+00:00

[ Upstream commit 17bdb4a82fe5014c8aa5b2103c80c5729744a096 ]

Signed-off-by: Jerry (Fangzhi) Zuo 
Reviewed-by: Hersen Wu 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/amdgpu/display: create fake mst encoders ahead of time (v4)

2020-07-22T07:34:27+00:00

commit 3168470142e0a82b5732c04ed4c031a9322ae170 upstream.

Prevents a warning in the MST create connector case.

v2: create global fake encoders rather per connector fake encoders
to avoid running out of encoder indices.

v3: use the actual number of crtcs on the asic rather than the max
to conserve encoders.

v4: v3 plus missing hunk I forgot to git add.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1108
Fixes: c6385e503aeaf9 ("drm/amdgpu: drop legacy drm load and unload callbacks")
Reviewed-by: Nicholas Kazlauskas 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org # 5.7.x
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: OLED panel backlight adjust not work with external display connected

2020-07-22T07:34:27+00:00

commit b448d30b0c303d5454ea572b772d1ffae96bc6e7 upstream.

[Why]
amdgpu_dm->backlight_caps is for single eDP only. the caps are upddated
for very connector. Real eDP caps will be overwritten by other external
display. For OLED panel, caps->aux_support is set to 1 for OLED pnael.
after external connected, caps+.aux_support is set to 0. This causes
OLED backlight adjustment not work.

[How]
within update_conector_ext_caps, backlight caps will be updated only for
eDP connector.

Cc: stable@vger.kernel.org
Signed-off-by: hersen wu 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: handle failed allocation during stream construction

2020-07-22T07:34:27+00:00

commit be73e608ae2711dc8a1ab8b9549d9e348061b2ee upstream.

[Why]
Failing to allocate a transfer function during stream construction leads
to a null pointer dereference

[How]
Handle the failed allocation by failing the stream construction

Cc: stable@vger.kernel.org
Signed-off-by: Josip Pavic 
Reviewed-by: Aric Cyr 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Only revalidate bandwidth on medium and fast updates

2020-07-09T07:39:39+00:00

commit 6eb3cf2e06d22b2b08e6b0ab48cb9c05a8e1a107 upstream.

[Why]
Changes that are fast don't require updating DLG parameters making
this call unnecessary. Considering this is an expensive call it should
not be done on every flip.

DML touches clocks, p-state support, DLG params and a few other DC
internal flags and these aren't expected during fast. A hang has been
reported with this change when called on every flip which suggests that
modifying these fields is not recommended behavior on fast updates.

[How]
Guard the validation to only happen if update type isn't FAST.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1191
Fixes: a24eaa5c51255b ("drm/amd/display: Revalidate bandwidth before commiting DC updates")
Signed-off-by: Nicholas Kazlauskas 
Acked-by: Alex Deucher 
Reviewed-by: Roman Li 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Fix ineffective setting of max bpc property

2020-07-09T07:39:27+00:00

[ Upstream commit fa7041d9d2fc7401cece43f305eb5b87b7017fc4 ]

[Why]
Regression was introduced where setting max bpc property has no effect
on the atomic check and final commit. It has the same effect as max bpc
being stuck at 8.

[How]
Correctly propagate max bpc with the new connector state.

Signed-off-by: Stylon Wang 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

drm/amd/display: Fix incorrectly pruned modes with deep color

2020-07-09T07:39:26+00:00

[ Upstream commit cbd14ae7ea934fd9d9f95103a0601a7fea243573 ]

[Why]
When "max bpc" is set to enable deep color, some modes are removed from
the list if they fail validation on max bpc. These modes should be kept
if they validates fine with lower bpc.

[How]
- Retry with lower bpc in mode validation.
- Same in atomic commit to apply working bpc, not necessarily max bpc.

Signed-off-by: Stylon Wang 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/amdgpu/display: Unlock mutex on error

2020-06-30T19:36:28+00:00

commit ee434a4f9f5ea15b0f84bddd8c012838cf9472c5 upstream.

Make sure we pass through ret label to unlock the mutex.

Signed-off-by: John van der Kamp 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Enable output_bpc property on all outputs

2020-06-30T19:36:27+00:00

commit 5ae9c378c3d88b40af72f8e8f961808e29f3e70b upstream.

[Why]
Connector property output_bpc is available on DP/eDP only. New IGT tests
would benifit if this property works on HDMI.

[How]
Enable this read-only property on all types of connectors.

Signed-off-by: Stylon Wang 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman