From: Wenjing Liu <[email protected]> [why] Virtual signal means there is no display attached. In this case we will assign a virtual signal type to the stream. We should only enable the front end of the stream but not the back end.
[how] When stream is enabling with virtual signal type, skip backend programming. Change-Id: I8e1fe85a66eaa757aec88e1a0360f1fa6cee3397 Signed-off-by: Wenjing Liu <[email protected]> Reviewed-by: Jun Lei <[email protected]> Acked-by: Bhawanpreet Lakha <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 8 ++++++++ 1 file changed, 8 insertions(+) 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 33d4cc495ad1..17c972ca6beb 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2718,6 +2718,10 @@ void core_link_enable_stream( enum dc_status status; DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); + if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment) && + dc_is_virtual_signal(pipe_ctx->stream->signal)) + return; + if (!dc_is_virtual_signal(pipe_ctx->stream->signal)) { stream->link->link_enc->funcs->setup( stream->link->link_enc, @@ -2860,6 +2864,10 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx) struct dc_stream_state *stream = pipe_ctx->stream; struct dc_link *link = stream->sink->link; + if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment) && + dc_is_virtual_signal(pipe_ctx->stream->signal)) + return; + #if defined(CONFIG_DRM_AMD_DC_HDCP) update_psp_stream_config(pipe_ctx, true); #endif -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
