linux/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c, branch v5.7

drm/amd/display: move dpcd debugfs members setup

2020-02-26T19:21:13Z

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

2020-02-25T16:05:57Z

[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

2020-02-06T20:04:38Z

[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

2019-11-19T15:12:52Z

[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

2019-10-25T20:50:08Z

[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

2019-09-17T13:06:54Z

[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

drm/amd/display: MST topology debugfs

2019-08-23T16:43:28Z

DRM provides drm_dp_mst_dump_topology, which prints useful information about MST devices Hook this up to a debugfs file named amdgpu_mst_topology Signed-off-by: David Francis Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

Merge branch 'drm-next' into drm-next-5.3

2019-06-25T13:42:25Z

Backmerge drm-next and fix up conflicts due to drmP.h removal. Signed-off-by: Alex Deucher

amdgpu_dm: no need to check return value of debugfs_create functions

2019-06-13T18:59:49Z

When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Harry Wentland Cc: Leo Li Cc: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: David Airlie Cc: Daniel Vetter Cc: Nicholas Kazlauskas Cc: David Francis Cc: Mario Kleiner Cc: Bhawanpreet Lakha Cc: Anthony Koo Cc: hersen wu Cc: "Leo (Hanghong) Ma" Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Alex Deucher

drm/amd/display: Add connector debugfs for "output_bpc"

2019-06-11T17:40:14Z

[Why] This will be useful for verifying whether we enter the correct output color depth from IGT. [How] Locks the connector and associated CRTC if available and outputs the current and maximum output bpc values. Example: cat /sys/kernel/debug/dri/0/DP-1/output_bpc Current: 8 Maximum: 10 v2: Drop unneeded connector status check Signed-off-by: Nicholas Kazlauskas Reviewed-by: David Francis Signed-off-by: Alex Deucher