Wenjing Liu 9c75891fee drm/amd/display: rework recent update PHY state commit ... [why] Original change 594b237b9a ("drm/amd/display: Add interface to track PHY state") was implemented by assuming stream's dpms off is equivalent to PHY power off. This assumption doesn't hold in following situations: 1. MST multiple stream scenario, where multiple streams are sharing the same PHY output. Toggle dpms off for one of the stream doesn't power off the PHY due to the presence of other streams. 2. enable stream failure scenario, where enable stream fails due to failure of link training. This will cause DPMS off is set to false, while the actual PHY power state is off in certain cases. Due to the problematic assumption, the logic will skip disabling other streams for MST multiple stream scenario, therefore PHY is not actually powered off. [how] 1. Rework this refactor by moving PHY state update down to hardware level, where we update PHY state in place when hardware sequencer is actually changing the power state of the PHY hardware. 2. Reimplement symclk on TX off workaround in place when we are actually calling transmitter control to power off PHY in dcn32. Note the workaround is added due to the lack of proper software interface to set TX while keeping symclk on. We plan to address this interface problem so we can set TX off only without affecting symclk in future dcn versions. Fixes: 594b237b9a ("drm/amd/display: Add interface to track PHY state") Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2022-09-19 15:10:24 -04:00
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dcn21_dccg.c	drm/amd/display: Add interface for ADD & DROP PIXEL Registers	2021-06-08 12:22:42 -04:00
dcn21_dccg.h	drm/amd/display: Adding prototype for dccg21_update_dpp_dto()	2020-12-15 11:35:25 -05:00
dcn21_hubbub.c	drm/amd/display: avoid doing vm_init multiple time	2022-08-16 18:09:16 -04:00
dcn21_hubbub.h	drm/amd/display: log additional register state for debug	2021-07-21 13:39:25 -04:00
dcn21_hubp.c	drm/amd/display: fix function scopes	2021-12-13 16:34:26 -05:00
dcn21_hubp.h	drm/amd/display: update chroma viewport wa	2019-12-18 16:09:08 -05:00
dcn21_hwseq.c	drm/amd/display: Added multi instance support for ABM	2021-04-28 23:35:50 -04:00
dcn21_hwseq.h	drm/amd/display: Block ABM in case of eDP ODM	2020-10-05 15:16:43 -04:00
dcn21_init.c	drm/amd/display: rework recent update PHY state commit	2022-09-19 15:10:24 -04:00
dcn21_init.h	drm/amd/display: cleanup of function pointer tables	2019-11-19 10:12:53 -05:00
dcn21_link_encoder.c	drm/amd/display: fix function scopes	2021-12-13 16:34:26 -05:00
dcn21_link_encoder.h	drm/amd/display: add missing dcn link encoder regs	2019-12-18 16:09:06 -05:00
dcn21_resource.c	drm/amd/display: Add dc_ctx to link_enc_create() parameters	2022-07-25 17:17:28 -04:00
dcn21_resource.h	drm/amd/display: move FPU operations from dcn21 to dml/dcn20 folder	2022-03-15 14:25:16 -04:00
Makefile	drm/amd/display: move FPU operations from dcn21 to dml/dcn20 folder	2022-03-15 14:25:16 -04:00