Timur Kristóf a7dc87f344 drm/amd/display: Properly disable scaling on DCE6 ...

SCL_SCALER_ENABLE can be used to enable/disable the scaler
on DCE6. Program it to 0 when scaling isn't used, 1 when used.
Additionally, clear some other registers when scaling is
disabled and program the SCL_UPDATE register as recommended.

This fixes visible glitches for users whose BIOS sets up a
mode with scaling at boot, which DC was unable to clean up.

Fixes: b70aaf5586 ("drm/amd/display: dce_transform: add DCE6 specific macros,functions")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2025-10-07 14:09:06 -04:00

..

dce_abm.c

drm/amd/display: Correctly restore user_level

2024-01-03 10:31:52 -05:00

dce_abm.h

drm/amd/display: Add some DCN401 reg name to macro definitions

2024-04-26 17:23:31 -04:00

dce_audio.c

drm/amd/display: Disable HBR audio for DP2 for certain ASICs

2024-07-23 17:07:09 -04:00

dce_audio.h

drm/amd/display: Disable HBR audio for DP2 for certain ASICs

2024-07-23 17:07:09 -04:00

dce_aux.c

drm/amd/display: Add link index in AUX and dpms

2025-09-05 17:38:40 -04:00

dce_aux.h

drm/amd/display: refactor ddc logic from dc_link_ddc to link_ddc

2023-01-13 14:57:40 -05:00

dce_clk_mgr.c

drm/amd/display: Clean up errors in dce_clk_mgr.c

2023-08-09 09:43:11 -04:00

dce_clock_source.c

drm/amd/display: To apply the adjusted DP ref clock for DP devices

2025-04-21 11:26:59 -04:00

dce_clock_source.h

drm/amdgpu: add missing parameter name in dce110_clk_src_construct() declaration

2025-04-21 10:54:22 -04:00

dce_dmcu.c

drm/amd/display: Don't use fsleep for PSR exit waits

2023-10-09 16:58:55 -04:00

dce_dmcu.h

…

dce_i2c_hw.c

drm/amd/display: Incorrect 'not' operator usage

2025-08-27 13:57:50 -04:00

dce_i2c_hw.h

drm/amd/display: Add misc DC changes for DCN401

2024-04-26 17:23:34 -04:00

dce_i2c_sw.c

drm/amd/display: Incorrect 'not' operator usage

2025-08-27 13:57:50 -04:00

dce_i2c_sw.h

…

dce_i2c.c

drm/amd/display: Add I2C escape to support query device exist.

2022-03-15 14:41:03 -04:00

dce_i2c.h

drm/amd/display: Add I2C escape to support query device exist.

2022-03-15 14:41:03 -04:00

dce_ipp.c

drm/amd/display: Move all linux includes into OS types

2022-07-05 16:16:49 -04:00

dce_ipp.h

…

dce_link_encoder.c

drm/amd/display: Don't warn when missing DCE encoder caps

2025-08-18 17:04:06 -04:00

dce_link_encoder.h

drm/amd/display: add set dp lane settings to link_hwss

2022-02-02 18:26:32 -05:00

dce_mem_input.c

drm/amd/display: Update dc_tiling_info union to structure

2025-01-06 14:44:27 -05:00

dce_mem_input.h

drm/amd/display: Add missing SFB and OPP_SF

2024-04-09 22:06:34 -04:00

dce_opp.c

drm/amd/display: Adjust incorrect indentations and spaces

2024-05-20 16:19:34 -04:00

dce_opp.h

drm/amd/display: Add missing SFB and OPP_SF

2024-04-09 22:06:34 -04:00

dce_panel_cntl.c

drm/amd/display: Fix possible overflow in integer multiplication

2024-07-01 16:06:53 -04:00

dce_panel_cntl.h

…

dce_scl_filters_old.c

…

dce_scl_filters.c

…

dce_stream_encoder.c

drm/amd/display: Fix BT2020 YCbCr limited/full range input

2025-02-19 15:14:10 -05:00

dce_stream_encoder.h

drm/amd/display: Program ACP related register

2022-07-05 16:13:18 -04:00

dce_transform.c

drm/amd/display: Properly disable scaling on DCE6

2025-10-07 14:09:06 -04:00

dce_transform.h

drm/amd/display: Properly disable scaling on DCE6

2025-10-07 14:09:06 -04:00

dmub_abm_lcd.c

drm/amd/display: Add Support for reg inbox0 for host->DMUB CMDs

2025-04-07 15:18:37 -04:00

dmub_abm_lcd.h

drm/amd/display: Add params of set_abm_event for VB Scaling

2024-06-05 11:05:24 -04:00

dmub_abm.c

drm/amd/display: Add Read Histogram command header

2025-04-07 15:18:30 -04:00

dmub_abm.h

…

dmub_hw_lock_mgr.c

drm/amd/display: Use HW lock mgr for PSR1 when only one eDP

2025-03-18 14:03:46 -04:00

dmub_hw_lock_mgr.h

…

dmub_outbox.c

drm/amd/display: Wake DMCUB before sending a command

2023-12-19 14:59:02 -05:00

dmub_outbox.h

drm/amd/display: Fix for dmub outbox notification enable

2022-02-16 17:01:42 -05:00

dmub_psr.c

drm/amd/display: Add control flags to force PSR / replay

2025-08-27 13:57:49 -04:00

dmub_psr.h

drm/amd/display: Extend PSRSU residency mode

2024-06-14 15:20:40 -04:00

dmub_replay.c

drm/amd/display: Add fast sync field in ultra sleep more for DMUB

2025-09-23 10:31:35 -04:00

dmub_replay.h

drm/amd/display: Revert Add HPO encoder support to Replay

2025-07-28 16:40:05 -04:00

Makefile

drm/amd/display: Refactor HWSS into component folder

2023-10-09 17:00:09 -04:00