kernel/linux.git/drivers/gpu/drm/amd/display/modules/power, branch v6.12.80

drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too

2024-10-22T22:13:03+00:00

Stuart Hayhurst has found that both at bootup and fullscreen VA-API video is leading to black screens for around 1 second and kernel WARNING [1] traces when calling dmub_psr_enable() with Parade 08-01 TCON. These symptoms all go away with PSR-SU disabled for this TCON, so disable it for now while DMUB traces [2] from the failure can be analyzed and the failure state properly root caused. Cc: Marc Rossi Cc: Hamza Mahfooz Link: https://gitlab.freedesktop.org/drm/amd/uploads/a832dd515b571ee171b3e3b566e99a13/dmesg.log [1] Link: https://gitlab.freedesktop.org/drm/amd/uploads/8f13ff3b00963c833e23e68aa8116959/output.log [2] Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2645 Reviewed-by: Leo Li Link: https://lore.kernel.org/r/20240205211233.2601-1-mario.limonciello@amd.com Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher (cherry picked from commit afb634a6823d8d9db23c5fb04f79c5549349628b) Cc: stable@vger.kernel.org

drm/amd/display: Introduce deferred Replay coasting vtotal update

2024-06-14T19:34:02+00:00

Add functions to defer updating of coasting vtotal after source refresh rate update. Reviewed-by: Robin Chen Acked-by: Zaeem Mohamed Signed-off-by: ChunTao Tso Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor for Replay Link off frame count

2024-04-30T13:53:12+00:00

[why] To refine for link off frame count in diagnose tool, the driver show the link off frame count number instead of showing link off frame count level. Reviewed-by: ChunTao Tso Reviewed-by: Robin Chen Acked-by: Wayne Lin Signed-off-by: Dennis Chan Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Amend coasting vtotal for replay low hz

2024-03-20T17:12:58+00:00

[WHY] The original coasting vtotal is 2 bytes, and it need to be amended to 4 bytes because low hz case. [HOW] Amend coasting vtotal from 2 bytes to 4 bytes. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Alvin Lee Acked-by: Alex Hung Signed-off-by: ChunTao Tso Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Replay + IPS + ABM in Full Screen VPB

2024-01-25T21:00:24+00:00

[Why] Because ABM will wait VStart to start getting histogram data, it will cause we can't enter IPS while full screnn video playing. [How] Modify the panel refresh rate to the maximun multiple of current refresh rate. Reviewed-by: Dennis Chan Acked-by: Roman Li Signed-off-by: ChunTao Tso Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix power_helpers.c codestyle

2024-01-05T21:10:44+00:00

Place define macro expression inside () in power_helpers.c file Signed-off-by: Marcelo Mendes Spessoto Junior Signed-off-by: Alex Deucher

drm/amd/display: Add some functions for Panel Replay

2024-01-03T16:16:05+00:00

[WHY] Prepare for enabling the Panel Replay feature [HOW] - Add some Panel Replay setting functions in DC - Add the Panel Replay resource in dcn35_resource.c - Add debug masks for Panel Replay Tested-by: Daniel Wheeler Acked-by: Rodrigo Siqueira Reviewed-by: Leo Li Signed-off-by: Tom Chung Signed-off-by: Alex Deucher

drm/amd/display: Disable PSR-SU on Parade 0803 TCON again

2023-12-13T20:09:54+00:00

When screen brightness is rapidly changed and PSR-SU is enabled the display hangs on panels with this TCON even on the latest DCN 3.1.4 microcode (0x8002a81 at this time). This was disabled previously as commit 072030b17830 ("drm/amd: Disable PSR-SU on Parade 0803 TCON") but reverted as commit 1e66a17ce546 ("Revert "drm/amd: Disable PSR-SU on Parade 0803 TCON"") in favor of testing for a new enough microcode (commit cd2e31a9ab93 ("drm/amd/display: Set minimum requirement for using PSR-SU on Phoenix")). As hangs are still happening specifically with this TCON, disable PSR-SU again for it until it can be root caused. Cc: stable@vger.kernel.org Cc: aaron.ma@canonical.com Cc: binli@gnome.org Cc: Marc Rossi Cc: Hamza Mahfooz Signed-off-by: Mario Limonciello Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2046131 Acked-by: Alex Deucher Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: fix problems in power_helper

2023-10-04T22:35:56+00:00

[Why & How] Fix following problems: - In abm config, forget to initialize config.ambient_thresholds_lux. - Adjust the coding style problem - Restrict to call psr_su_set_dsc_slice_height() under edp only Reviewed-by: Robin Chen Signed-off-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add Freesync Panel DM code

2023-08-07T21:14:07+00:00

We need certain conditions for replay to be enabled, so create an interface in DM to enable/disable replay. Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher