linux/drivers/gpu/drm/amd/display/dc/dce120
hersen wu c69dffab81 drm/amd/display: fix eDP fast bootup for pre-raven asic
[Why]
For fastboot, Bios will light up eDP before SW driver is loaded. SW
driver will check if eDP is lit by bios through reading the
BIOS_SCRATCH_3 register. If lit, SW driver will not power down eDP
power and phy to save time.

Definition of BIOS_SCRATCH_3 are missing for pre-raven asic. This
causes eDP fast boot to not work property. For some eDP panels, even
if dp tx sends NoVideoStream_flag =1 and dpcd 0x600=2, eDP rx may not
handle properly. This may cause a short flash on screen.

[How] Add definition of BIOS_SCRATCH_3 for all asic

Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Acked-by: Yongqiang Sun <yongqiang.sun@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-01-25 16:15:36 -05:00
..
dce120_hw_sequencer.c drm/amd/display: Compensate for XGMI SS downspread on dprefclk 2019-01-14 15:04:41 -05:00
dce120_hw_sequencer.h drm/amd/display: Compensate for XGMI SS downspread on dprefclk 2019-01-14 15:04:41 -05:00
dce120_resource.c drm/amd/display: fix eDP fast bootup for pre-raven asic 2019-01-25 16:15:36 -05:00
dce120_resource.h drm/amd/display: Flattening core_dc to dc 2017-09-26 18:16:40 -04:00
dce120_timing_generator.c drm/amd/display: Fix warning observed in mode change on Vega 2018-08-13 17:22:08 -05:00
dce120_timing_generator.h amdgpu/dc: drop hw_sequencer_types.h 2017-10-06 13:03:20 -04:00
Makefile drm/amdgpu: add license to Makefiles 2017-12-04 11:47:55 -05:00