linux-stable.git/drivers/gpu/drm/amd/display/dc/core, branch v4.20

drm/amd/display: Fix misleading buffer information

2018-11-06T21:24:42+00:00

RETIMER_REDRIVER_INFO shows the buffer as a decimal value with a '0x'
prefix, which is somewhat misleading.

Fix it to print hexadecimal, as was intended.

Fixes: 2f14bc89("drm/amd/display: add retimer log for HWQ tuning use.")
Cc: Charlene Liu 
Cc: Dmytro Laktyushkin 
Signed-off-by: Shaokun Zhang 
Reviewed-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Add function to fetch clock requirements

2018-10-09T22:02:02+00:00

Also add dram clock to clocks struct, for systems that uses them.

Signed-off-by: Eryk Brol 
Reviewed-by: Jun Lei 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Calculate swizzle mode using bpp during validation

2018-10-09T22:01:55+00:00

[Why]
Previously bandwidth validation was failing because swizzle mode was not
initialized during plane_state allocation. The swizzle mode was
calculated using pixed format which is how swizzle mode is initially
calculated in addrlib.

[How]
* Set default swizzle mode for validation to DC_SW_UNKNOWN
* Created new function in dcn10_assign_swizzle_mode which sets the
  plane swizzle mode based on selected pixed format
* Added the call of assign_swizzle_mode into dc_validate_global_state
* Set failsafe swizzle mode back to DC_SW_LINEAR

Signed-off-by: Su Sung Chung 
Reviewed-by: Eric Yang 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: fix 4K stereo screen flash issue

2018-10-09T22:01:39+00:00

[Why]
HDMI_scramber is not enabled for pixel rate >340Mhz.
[How]
Calculate the phy clock to include the Hw frame packing factor.

Signed-off-by: Charlene Liu 
Reviewed-by: Chris Park 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Add DC build_id to determine build type

2018-10-09T22:01:25+00:00

[why]
Sometimes there are indications that the incorrect driver is being
loaded in automated tests. This change adds the ability for builds to
be tagged with a string, and picked up by the test infrastructure.

[how]
dc.c will allocate const for build id, which is init-ed with default
value, indicating production build. For test builds, build server will
find/replace this value. The test machine will then verify this value.

Signed-off-by: Jun Lei 
Reviewed-by: Tony Cheng 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

BackMerge v4.19-rc6 into drm-next

2018-10-04T01:03:34+00:00

I have some pulls based on rc6, and I prefer to have an explicit backmerge.

Signed-off-by: Dave Airlie

drm/amd/display: Fix Edid emulation for linux

2018-09-27T15:05:21+00:00

[Why]
EDID emulation didn't work properly for linux, as we stop programming
if nothing is connected physically.

[How]
We get a flag from DRM when we want to do edid emulation. We check if
this flag is true and nothing is connected physically, if so we only
program the front end using VIRTUAL_SIGNAL.

Signed-off-by: Bhawanpreet Lakha 
Reviewed-by: Harry Wentland 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: fix gamma not being applied

2018-09-27T02:09:08+00:00

[WHY]
Previously night light forced a full update by
applying a  transfer function update regardless of if it was changed.
This logic was removed,

Now gamma surface updates are only applied when there is also a plane
info update, this does not work in cases such as using the night light
slider.

[HOW]
When moving the night light slider we will perform a full update if
the gamma has changed and there is a surface, even when the surface
has not changed. Also get stream updates in setgamma prior to
update planes and stream.

Signed-off-by: SivapiriyanKumarasamy 
Reviewed-by: Anthony Koo 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: add pp_smu NULL pointer check

2018-09-27T02:09:05+00:00

add pp_smu NULL ptr check

Signed-off-by: Charlene Liu 
Reviewed-by: Dmytro Laktyushkin 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: use proper pipe_ctx index

2018-09-27T02:09:05+00:00

Use link->link_index as index to pipe_ctx[] to get proper link
information instead of using index 0 to avoid potential miss matches.

Signed-off-by: Samson Tam 
Reviewed-by: Anthony Koo 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher