linux-stable.git/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c, branch v5.8

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

2020-06-24T22:02:58+00:00

[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

drm/amd/display: move location of dmub_srv.h file

2020-05-05T17:12:33+00:00

[Why]
Make a separation of what belongs in the differen dmub
headers

dmub_srv.h is for exposing dmub srv interface to rest of
driver.

other headers inside dmub/inc exposes cmds and definitions
that are owned by the firmware

[How]
keep firmware owned definitions in dmub/inc

move stuff that is purely driver interface headers to dmub/
since those are interface calls that are defined for rest of
driver to use

Signed-off-by: Anthony Koo 
Reviewed-by: Aric Cyr 
Acked-by: Harry Wentland 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher

drm/amd/display: make all backlight calls link based

2020-04-22T22:11:48+00:00

[Why]
Backlight adjustment is tied to a specific display.  So make the calls
target a link rather than making it a global state.

[How]
make all backlight calls link based

Signed-off-by: Anthony Koo 
Reviewed-by: Tony Cheng 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm/amd/display: add HDCP caps debugfs

2020-04-09T14:43:17+00:00

Add debugfs to get HDCP capability. This is also useful for
kms_content_protection igt test.

Use:
	cat /sys/kernel/debug/dri/0/DP-1/hdcp_sink_capability
	cat /sys/kernel/debug/dri/0/HDMI-A-1/hdcp_sink_capability

Signed-off-by: Bhawanpreet Lakha 
Reviewed-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm/amd/display: move dpcd debugfs members setup

2020-02-26T19:21:13+00:00

Into the function that creates the debugfs files rather
than setting them explicitly in the callers.

Tested-by: Thomas Zimmermann 
Reviewed-by: Harry Wentland 
Acked-by: Christian König 
Signed-off-by: Alex Deucher

drm/amd/display: Add DMUB firmware state debugfs

2020-02-25T16:05:57+00:00

[Why]
Firmware state helps to debug sequence issues and hangs for DMCUB
commands and we don't have an easy mechanism to dump it from the driver.

[How]
Add a debugfs entry to dump the current firmware state.
Example usage:

cat /sys/kernel/debug/dri/0/amdgpu_dm_dmub_fw_state

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Hersen Wu 
Acked-by: Rodrigo Siqueira 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amd/display: Add DMUB tracebuffer debugfs

2020-02-06T20:04:38+00:00

[Why]
The DMUB tracebuffer is useful for understanding DMCUB execution state.

[How]
Add a "show" attribute debugfs so we can loop through the buffer
and print the entries.

The structs for the entry format are defined in the debugfs since
the tracebuffer header no longer exists in the DMUB service.

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Hersen Wu 
Acked-by: Bhawanpreet Lakha 
Signed-off-by: Alex Deucher

drm/amd/display: add color space option when sending link test pattern

2019-11-19T15:12:52+00:00

[why]
In the TEST_MSIC dpcd register field definition, the test equipment
has the option to choose between YCbCr601 or YCbCr709.
We will apply corresponding YCbCr coefficient based on this test
request.

[how]
Add a new input parameter in dc_link_dp_set_test_pattern to allow the
selection between different color space.

Signed-off-by: Wenjing Liu 
Reviewed-by: Nikola Cornij 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm/amd/display: Add debugfs entry for reading psr state

2019-10-25T20:50:08+00:00

[Why]
For upcoming PSR stupport it's useful to have debug entry
to verify psr state.

[How]
 - Enable psr dc api for Linux
 - Add psr_state file to eDP connector debugfs
usage e.g.: cat /sys/kernel/debug/dri/0/DP-1/psr_state

Signed-off-by: Roman Li 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Add debugfs entry to force YUV420 output

2019-09-17T13:06:54+00:00

[Why]
Even if YUV420 is available for video mode, YUV444 is still
automatically selected. This poses a problem for compliance tests.

[How]
Add a per-connector debugfs entry "force_yuv420_output" to force
selection of YUV420 mode.

Signed-off-by: Stylon Wang 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher