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drm/amd/display: Avoid calling blank_stream() twice

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[Why]
We've made fix for garbage in dcn31_reset_back_end_for_pipe(), adding
blank_stream() before disable_crtc(). And set_dpms_off() will call
blank_stream() again.

[How]
Add flag to avoid calling blank_stream() twice.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Zhongwei Zhang <Zhongwei.Zhang@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhongwei Zhang
2025-05-16 14:44:21 +08:00
committed by Alex Deucher
parent 893f07452b
commit 747bfca45e
3 changed files with 13 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
View File

@@ -1221,6 +1221,9 @@ void dce110_blank_stream(struct pipe_ctx *pipe_ctx)
struct dc_link *link = stream->link;
struct dce_hwseq *hws = link->dc->hwseq;
if (hws && hws->wa_state.skip_blank_stream)
return;
if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) {
if (!link->skip_implict_edp_power_control)
hws->funcs.edp_backlight_control(link, false);

11
drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c
View File

@@ -526,9 +526,15 @@ static void dcn31_reset_back_end_for_pipe(
link = pipe_ctx->stream->link;
if (dc->hwseq)
dc->hwseq->wa_state.skip_blank_stream = false;
if ((!pipe_ctx->stream->dpms_off || link->link_status.link_active) &&
(link->connector_signal == SIGNAL_TYPE_EDP))
(link->connector_signal == SIGNAL_TYPE_EDP)) {
dc->hwss.blank_stream(pipe_ctx);
if (dc->hwseq)
dc->hwseq->wa_state.skip_blank_stream = true;
}
pipe_ctx->stream_res.tg->funcs->set_dsc_config(
pipe_ctx->stream_res.tg,
@@ -570,7 +576,8 @@ static void dcn31_reset_back_end_for_pipe(
pipe_ctx->stream_res.audio = NULL;
}
}
if (dc->hwseq)
dc->hwseq->wa_state.skip_blank_stream = false;
pipe_ctx->stream = NULL;
DC_LOG_DEBUG("Reset back end for pipe %d, tg:%d\n",
pipe_ctx->pipe_idx, pipe_ctx->stream_res.tg->inst);

1
drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h
View File

@@ -49,6 +49,7 @@ struct hwseq_wa_state {
bool DEGVIDCN10_253_applied;
bool disallow_self_refresh_during_multi_plane_transition_applied;
unsigned int disallow_self_refresh_during_multi_plane_transition_applied_on_frame;
bool skip_blank_stream;
};
struct pipe_ctx;