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path: root/drivers/gpu/drm/amd/display/dc/inc/link_hwss.h
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* drm/amd/display: implement lttpr logicabdoulaye berthe2019-11-131-2/+4
| | | | | | | | | | | | | 1-If at least one repeater is present in the link and we are in non transparent mode, perform clock recovery then channel equalization with all repeaters one by one before training DPRX. 2-Mark the end of LT with a repeater by setting training pattern 0 at the end of channel equalization with each repeater. Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: Synchronous DisplayPort Link TrainingDavid Galiffi2019-08-151-2/+0
| | | | | | | | | | | | | | | | | | | | | [WHY] We require a method to perform synchronous link training. [HOW] Sync LT is broken into 3 basic steps. "Begin" starts the state machine, and resets "preferred" link settings. "Attempt" will attempt to train the link with a given set of training parameters. "End" stops the state machine, and will optionally disable the link phy. Between "Begin" and "End" DPCD:600h must not be set to "2" (D3:Powered Down). Between "Begin" and "End", there may be multiple "Attempts" with different training parameters. Signed-off-by: David Galiffi <david.galiffi@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: Add ability to set preferred link training parameters.David Galiffi2019-07-181-1/+1
| | | | | | | | | | | | | | | | | [WHY] To add support for OS requirement to set preferred link training parameters. [HOW] Create new structure of dp link training overrides. During link training processes, these values should be used instead of the default training parameters. Signed-off-by: David Galiffi <David.Galiffi@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: add eDP 1.2+ polling for T7Charlene Liu2018-02-191-0/+1
| | | | | | | Signed-off-by: Charlene Liu <charlene.liu@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: wait for T9 after backlight off mainlink blank.Charlene Liu2018-02-191-0/+1
| | | | | | | Signed-off-by: Charlene Liu <charlene.liu@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: Move power control from link encoder to hwsequencerAndrew Jiang2017-10-211-0/+4
| | | | | | | | | | | | | | | | A recent commit moved the backlight control code along with the register defines, but did not move the power control code. This along with remnant fields in the dce110_link_enc_registers struct made it so that the code still compiled, but any attempts to access the LVTMA_PWRSEQ_STATE register led to reading from an address of 0. This patch corrects that. Also, rename blacklight_control to edp_backlight_control (Typo fix). Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: Roll core_link into dc_linkHarry Wentland2017-09-261-11/+11
| | | | | | | Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: Fix link retraining hw sequence for auto testHersen Wu2017-09-261-3/+1
| | | | | | Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/display: Fix link retraining hw sequenceZeyu Fan2017-09-261-0/+4
| | | | | | | Signed-off-by: Zeyu Fan <Zeyu.Fan@amd.com> Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/dc: Add dc display driver (v2)Harry Wentland2017-09-261-0/+73
Supported DCE versions: 8.0, 10.0, 11.0, 11.2 v2: rebase against 4.11 Signed-off-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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