diff options
| author | Anthony Koo <Anthony.Koo@amd.com> | 2019-01-20 01:32:55 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-02-06 13:30:59 -0500 |
| commit | ff582b61466f14d61f3a2a54c3d673d85bcb3c76 (patch) | |
| tree | 40b73210fb2d2ebd5c0fbe83891a24af52c65965 /drivers/gpu/drm/amd/display | |
| parent | a122b62d8ac484091c536ad04e1d0ea156ae6de7 (diff) | |
drm/amd/display: add way to determine if link is active
[Why]
Need to understand whether link is active aside from stream state.
This could be used to check what links are enabled by GOP.
[How]
Store link_active state in link status and initialize it by checking
if the DIG is enabled.
Keep it updated on every link enable and disable
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 5 |
3 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 137d3c126632..e2e7bf2ba84b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2612,6 +2612,8 @@ void core_link_enable_stream( } } + stream->link->link_status.link_active = true; + core_dc->hwss.enable_audio_stream(pipe_ctx); /* turn off otg test pattern if enable */ @@ -2646,6 +2648,8 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx, int option) core_dc->hwss.disable_stream(pipe_ctx, option); disable_link(pipe_ctx->stream->link, pipe_ctx->stream->signal); + + pipe_ctx->stream->link->link_status.link_active = false; } void core_link_set_avmute(struct pipe_ctx *pipe_ctx, bool enable) diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index d26bbda61ad2..8fc223defed4 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -30,6 +30,7 @@ #include "grph_object_defs.h" struct dc_link_status { + bool link_active; struct dpcd_caps *dpcd_caps; }; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 7cead0398c15..7117144d48bd 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -1027,6 +1027,11 @@ static void dcn10_init_hw(struct dc *dc) dc->hwss.edp_power_control(link, true); link->link_enc->funcs->hw_init(link->link_enc); + + /* Check for enabled DIG to identify enabled display */ + if (link->link_enc->funcs->is_dig_enabled && + link->link_enc->funcs->is_dig_enabled(link->link_enc)) + link->link_status.link_active = true; } } |