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drm/amd/display: fix virtual signal dsc setup

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This prevents dpcd access on virtual links.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2020-04-07 12:01:07 -04:00 committed by Alex Deucher
parent 9da3d05059
commit d5bef51f08
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
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@ -400,7 +400,7 @@ static bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable)
struct dc_stream_state *stream = pipe_ctx->stream;
bool result = false;
if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
if (dc_is_virtual_signal(stream->signal) || IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
result = true;
else
result = dm_helpers_dp_write_dsc_enable(dc->ctx, stream, enable);