linux-stable.git/drivers/gpu/drm/amd/display/amdgpu_dm, branch v4.15

drm/amd/display: Fix rehook MST display not light back on

2017-12-15T22:32:42+00:00

Original applied dm_restore_drm_connector_state() has got removed.
Set link status to BAD before hotplug() event could trigger
another modeset from userspace.

The fix "Fix MST daisy chain SST not light up" commit makes so it is trying
to create a stream prior to dc_sink. That makes dc_sink is not present in
create_stream_for_sink().

Signed-off-by: Jerry (Fangzhi) Zuo 
Reviewed-by: Roman Li 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amdgpu: add license to Makefiles

2017-12-04T16:47:55+00:00

Was missing license text.

Acked-by: Harry Wentland 
Acked-by: Felix Kuehling 
Acked-by: Christian König 
Signed-off-by: Alex Deucher

drm/amd/display: Switch to drm_atomic_helper_wait_for_flip_done

2017-11-28T22:57:01+00:00

This new helper function is advised to be used for drviers that
use the nonblocking commit tracking support instead of
drm_atomic_helper_wait_for_vblanks.

Signed-off-by: Andrey Grodzovsky 
Reviewed-by: Harry Wentland 
Reviewed-and-Tested-by: Michel Dänzer 
Signed-off-by: Alex Deucher

drm/amd/display: fix gamma setting

2017-11-28T22:56:54+00:00

Adding gamma changed check as condition for affected plane.
We ignored adding plane as affected if modeset was not required.
But for color management change we still need it.

Signed-off-by: Roman Li 
Reviewed-by: Tony Cheng 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Do not put drm_atomic_state on resume

2017-11-28T22:56:46+00:00

drm_atomic_helper_resume now puts it for us. See relevant patch here:
https://lists.freedesktop.org/archives/dri-devel/2017-October/154268.html

Signed-off-by: Leo (Sunpeng) Li 
Reviewed-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Fix amdgpu_dm bugs found by smatch

2017-11-28T22:56:03+00:00

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:2760
create_eml_sink() warn: variable dereferenced before check
'aconnector->base.edid_blob_ptr' (see line 2758)
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4270
amdgpu_dm_atomic_commit_tail() warn: variable dereferenced before check
'dm_new_crtc_state->stream' (see line 4266)
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4417
dm_restore_drm_connector_state() warn: variable dereferenced before
check 'disconnected_acrtc' (see line 4415)

Signed-off-by: Harry Wentland 
Reviewed-by: Sun peng Li 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Do DC mode-change check when adding CRTCs

2017-11-28T22:55:26+00:00

Within atomic check, dm_update_crtcs_state is called twice. First to
remove from the dc_state, and subsequently to add to it.

In both calls, a secondary mode-change check is done using dc-level
states. We shouldn't be doing this while removing, since a new
dc_stream_state has not been created to do the necessary comparison.
Because of this, the mode_changed flag within the DRM state can be
mistakenly set to false. Doing so only when adding prevents this.

We are also guaranteed that a call to add will come after remove, or
else the atomic check fails (and a commit will not happen).

Signed-off-by: Leo (Sunpeng) Li 
Reviewed-by: Tony Cheng 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Check aux channel before MST resume

2017-11-28T22:54:58+00:00

It is to fix: MST display failed to resume from S3

At the beginning of resume from S3, need to check if mgr->aux is
NULL. Fake MST encoder doesn't have real aux channel.

Signed-off-by: Jerry (Fangzhi) Zuo 
Reviewed-by: Roman Li 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Fix S3 topology change

2017-11-28T22:54:26+00:00

Clean fake sink flag on resume if real sink connected.
Fixing S3 topology change problem like this:
1) x desktop with 1 or > displays
2) unplug display
3) suspend
4) replug same display
5) resume
without this change replugged display doesn't light up

Signed-off-by: Roman Li 
Reviewed-by: Sun peng Li 
Acked-by: Harry Wentland 
Reviewed-by: Andrey Grodzovsky 
Signed-off-by: Alex Deucher

drm/amd/display: Miss register MST encoder cbs

2017-11-14T16:32:45+00:00

It is to fix: MST display failed to resume from S3

Need to properly setup MST encoder cbs. Otherwise drm_device
encoder doesn't register its own cbs, leading to NULL
encoder->funcs in drm_atomic_helper_resume().

Signed-off-by: Jerry (Fangzhi) Zuo 
Reviewed-by: Roman Li 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher