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drm/amd/display: Fix black screen when disabling Freesync in OSD

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[Why]
Black screen encountered when disabling Freesync through OSD on some
displays.

[How]
Set the should_disable flag when new top pipe has no plane state to
ensure that pipes get cleaned up.

Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ilya Bakoulin 2022-06-09 18:45:04 -04:00 committed by Alex Deucher
parent e2facd575f
commit 59a1e9ed1b
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -1085,6 +1085,16 @@ static void disable_dangling_plane(struct dc *dc, struct dc_state *context)
dc->current_state->stream_count != context->stream_count)
should_disable = true;
if (old_stream && !dc->current_state->res_ctx.pipe_ctx[i].top_pipe) {
struct pipe_ctx *old_pipe, *new_pipe;
old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
new_pipe = &context->res_ctx.pipe_ctx[i];
if (old_pipe->plane_state && !new_pipe->plane_state)
should_disable = true;
}
if (should_disable && old_stream) {
dc_rem_all_planes_for_stream(dc, old_stream, dangling_context);
disable_all_writeback_pipes_for_stream(dc, old_stream, dangling_context);