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| author |   Yongqiang Sun <yongqiang.sun@amd.com> | 2020-02-27 15:36:00 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-03-19 00:03:04 -0400 |
| commit | 1ef893e2749292be0c3f41f404bc44e5d6a5f742 (patch) | |
| tree | ff7e8e0bc09fa4ef9446d7407925378349bc3118 /drivers/gpu/drm/amd/display/dc/inc | |
| parent | drm/amd/display: Remove redundant hdcp display state (diff) | |
| download | linux-dev-1ef893e2749292be0c3f41f404bc44e5d6a5f742.tar.xz linux-dev-1ef893e2749292be0c3f41f404bc44e5d6a5f742.zip | |
drm/amd/display: workaround for HDMI hotplug in DPMSOFF state
[Why]
When hotplug a HDMI monitor during entering S0i3 or DPMSOFF state due to
entering infinite loop when calling vbios to program pixel clocks. In
this scenario, pll is enabled but phy is not, and there is not a
programing guide for this case.
[How]
Before we having the proper programing guide, before disable pll, doing
a phy enable and disable to avoid the issue.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw_sequencer_private.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer_private.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer_private.h index b1d736cbcd5a..52a26e6be066 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer_private.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer_private.h @@ -145,6 +145,8 @@ struct hwseq_private_funcs { const struct dc_plane_state *plane_state); bool (*set_shaper_3dlut)(struct pipe_ctx *pipe_ctx, const struct dc_plane_state *plane_state); + void (*PLAT_58856_wa)(struct dc_state *context, + struct pipe_ctx *pipe_ctx); }; struct dce_hwseq { |