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drm/amd/display: Fix issue with link_active state not correct for MST 

[Why]
For MST, link not disabled until all streams disabled

[How]
Add check for stream_count before setting link_active = false for MST

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Anthony Koo 2019-02-07 20:38:34 -05:00 committed by Alex Deucher
parent dcd5fb82ff
commit 293b916083
1 changed files with 11 additions and 4 deletions
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15
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -2038,6 +2038,9 @@ static enum dc_status enable_link(
break;
}
if (status == DC_OK)
pipe_ctx->stream->link->link_status.link_active = true;
return status;
}
@ -2061,6 +2064,14 @@ static void disable_link(struct dc_link *link, enum signal_type signal)
dp_disable_link_phy_mst(link, signal);
} else
link->link_enc->funcs->disable_output(link->link_enc, signal);
if (signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
/* MST disable link only when no stream use the link */
if (link->mst_stream_alloc_table.stream_count <= 0)
link->link_status.link_active = false;
} else {
link->link_status.link_active = false;
}
}
static bool dp_active_dongle_validate_timing(
@ -2624,8 +2635,6 @@ 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 */
@ -2660,8 +2669,6 @@ 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)