linux/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c, branch v6.7

drm/amd/display: add interface to query SubVP status

2023-10-26T23:02:31Z

[Why&How] To enable automated testing through IGT, expose an API that is accessible through debugfs to query current status of SubVP feature. Reviewed-by: Alvin Lee Acked-by: Roman Li Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add DCHUBBUB callback to report MALL status

2023-09-11T21:16:35Z

[Why&How] For enabling automated testing, add a hook to DCHUBBUB interface so that mall status can be queried by userspace through debugfs. This removes dependence on requiring a userspace tool like UMR for querying status for MALL static screen IGT test. Reviewed-by: Alvin Lee Acked-by: Stylon Wang Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: set default return value for ODM Combine debugfs

2023-09-11T21:13:35Z

[Why&How] Set a default return value of -ENOTSUPP to indicate that the hardware does not support querying ODM Combine mode. Reviewed-by: Rodrigo Siqueira Acked-by: Stylon Wang Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add debugfs interface for ODM combine info

2023-08-30T19:37:59Z

[Why] For use with IGT tests in userspace, the number of ODM segments in use is required to be exposed to userspace to verify that ODM Combine is working as expected when special timings are committed. [How] Add a connector specific debugfs entry that prints the number of ODM segments in use. Reviewed-by: Wenjing Liu Acked-by: Hamza Mahfooz Signed-off-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: Fix incorrect comment

2023-08-30T19:37:33Z

Fix incorrect comment about hardware capabilities debugfs interface. Reviewed-by: Jerry Zuo Acked-by: Hamza Mahfooz Signed-off-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: Expose mall capability

2023-08-30T18:58:29Z

[Why&How] Export a debugfs file to report whether MALL cache is supported by the asic or not. Reviewed-by: Hersen Wu Acked-by: Wayne Lin Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Use seq_puts() in 'amdgpu_current_colorspace_show()' & 'edp_ilr_show()'

2023-07-07T17:39:02Z

Replace seq_printf with seq_puts when there is no argument list. Fix the checkpatch warning: WARNING: Prefer seq_puts to seq_printf Cc: Wayne Lin Cc: Harry Wentland Cc: Rodrigo Siqueira Cc: Aurabindo Pillai Signed-off-by: Srinivasan Shanmugam Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Add MST Preferred Link Setting Entry

2023-06-23T19:44:36Z

When using debugfs to change MST link settings, we need to wait until the next stream update to apply the preferred link setting. So, trigger a hotplug event right after the preferred link setting is applied. Reviewed-by: Wayne Lin Acked-by: Hamza Mahfooz Signed-off-by: Fangzhi Zuo Signed-off-by: Alex Deucher

drm/amd/display: add debugfs for allow_edp_hotplug_detection

2023-06-15T14:44:05Z

[Why] within dc_link_detect, edp edid is read only for the first time and saved. edid will not be read after the first time read. to run edp edid read test, need read edp edid for each dc_link_detect. dc->config flag allow_edp_hotplug_detection could be used for edp edid test. [How] add debugfs for dc->config.allow_edp_hotplug_detection Acked-by: Stylon Wang Signed-off-by: Hersen Wu Reviewed-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add debugfs for testing output colorspace

2023-06-09T16:47:16Z

In order to IGT test colorspace we'll want to print the currently enabled colorspace on a stream. We add a new debugfs to do so, using the same scheme as current bpc reporting. This might also come in handy when debugging display issues. v4: - Fix function doc comment - Fix sRGB debug print Signed-off-by: Harry Wentland Reviewed-by: Joshua Ashton Cc: Pekka Paalanen Cc: Sebastian Wick Cc: Vitaly.Prosyak@amd.com Cc: Joshua Ashton Cc: Simon Ser Cc: Melissa Wen Cc: dri-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Alex Deucher