linux-toradex.git/drivers/gpu/drm/amd/display/modules, branch v5.5-rc7

drm/amd/display: Fix screen tearing on vrr tests

2019-12-05T23:22:40+00:00

[Why]
Screen tearing is present in tests when setting the frame rate to
certain fps

[How]
Revert previous optimizations for low frame rates.

Signed-off-by: Amanda Liu 
Reviewed-by: Aric Cyr 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Only use EETF when maxCL > max display

2019-10-25T20:50:09+00:00

[Why&How]
BT.2390 EETF is used for tone mapping/range reduction.
Say display is 0.1 - 500 nits.
The problematic case is when content is 0-400. We apply EETF because
0<0.1 so we need to reduce the range by 0.1.

In the commit, we ignore the bottom range. Most displays map 0 to min and
then have a ramp to 0.1, so sending 0.1 is actually >0.1.
Furthermode, HW that uses 3D LUT also assumes min=0.

Signed-off-by: Krunoslav Kovac 
Reviewed-by: Aric Cyr 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Don't use optimized gamma22 with eetf

2019-10-25T20:50:07+00:00

[why]
Optimized gamma22 assumes fixed point distribution which is not true
for eetf true.

[how]
Use long calculation for eetf.

Signed-off-by: Aidan Yang 
Reviewed-by: Krunoslav Kovac 
Acked-by: Leo Li 
Acked-by: Reza Amini 
Signed-off-by: Alex Deucher

drm/amd/display: Add capability check for static ramp calc

2019-10-11T00:34:20+00:00

[Why]
Static ramp to max refresh rate does not have capability check on
calculated v_total. Programming a lower v_total_min and max than the
total causes continuous spurious HPDs.

[How]
Add a capability check after v_total calculation similar to calculate
v_total helper functions.

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

drm/amd/display: Properly round nominal frequency for SPD

2019-10-11T00:32:16+00:00

[Why]
Some displays rely on the SPD verticle frequency maximum value.
Must round the calculated refresh rate to the nearest integer.

[How]
Round the nominal calculated refresh rate to the nearest whole
integer.

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

drm/amd/display: add support for VSIP info packet

2019-10-11T00:25:22+00:00

[Why]
The vendor specific infoframe is needed for HDMI while displaying
specific modes.
DC supports sending it, but we aren't currently building it

[How]
Add mod_build_hf_vsif_infopacket() to build the vendor specific
info packet.

Signed-off-by: Wayne Lin 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: remove set but not used variable 'core_freesync'

2019-10-07T20:10:16+00:00

Fixes gcc '-Wunused-but-set-variable' warning:

rivers/gpu/drm/amd/amdgpu/../display/modules/freesync/freesync.c:
 In function mod_freesync_get_settings:
drivers/gpu/drm/amd/amdgpu/../display/modules/freesync/freesync.c:984:24:
 warning: variable core_freesync set but not used [-Wunused-but-set-variable]

It is not used since commit 98e6436d3af5 ("drm/amd/display: Refactor FreeSync module")

Reviewed-by: Harry Wentland 
Reported-by: Hulk Robot 
Signed-off-by: YueHaibing 
Signed-off-by: Alex Deucher

drm/amd/display: fix spelling mistake AUTHENICATED -> AUTHENTICATED

2019-10-03T18:51:19+00:00

There is a spelling mistake in the macros H1_A45_AUTHENICATED and
D1_A4_AUTHENICATED, fix these by adding the missing T.

Reviewed-by: Harry Wentland 
Signed-off-by: Colin Ian King 
Signed-off-by: Alex Deucher

drm/amd/display: add PSP block to verify hdcp steps

2019-10-03T14:10:58+00:00

[Why]
All the HDCP transactions should be verified using PSP.

[How]
This patch calls psp with the correct inputs to verify the steps
of authentication.

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

drm/amd/display: Add HDCP module

2019-10-03T14:10:58+00:00

This module manages HDCP for amdgpu driver. The module behaves as a
state machine which handles the different authentication states of HDCP

The module is divided into 3 major components
+--------+
| Hdcp.c |
+--------+
Manages the state machine, sends the events to be executed and communicates
with the dm

+-----------+
|Execution.c|
+-----------+
This executes events based on the current state. Also generates
execution results as transition inputs

+------------+
|Transition.c|
+------------+
Decides the next state based on the input and makes requests to
hdcp.c to handle.
                                +-------------+
                        ------> | Execution.c | ------
                        |       +-------------+       |
                        |                             V
+----+              +--------+                 +--------------+
| DM |    ----->    | Hdcp.c |  <------------  | Transition.c |
+----+    <-----    +--------+                 +--------------+

v2: Drop unused function definitions

Signed-off-by: Bhawanpreet Lakha 
Signed-off-by: Wenjing Liu 
Reviewed-by: Wenjing Liu 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher