diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2022-07-06 16:26:40 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-25 17:14:50 -0400 |
| commit | 44584b417a698bfaac0c2577e7cc4015ea7359ce (patch) | |
| tree | 11f9ecd94c09eb26b796ab784f42410877566794 /drivers/gpu/drm/amd/display/dc/link | |
| parent | 8de297dc046c180651c0500f8611663ae1c3828a (diff) | |
drm/amd/display: Add enable/disable FIFO callbacks to stream setup
[Why]
We don't write out attributes after disabling and re-enabling the link
on some monitors, causing some, but not all, HDMI displays to fail to
lightup on DCN314.
[How]
Firmware used to do this after DIG link setup.
Since firmware is no longer doing this to support USB4 and dynamic link
remapping we'll need to add this to driver in the equivalent paths.
New optional callbacks were created in the stream encoder interface and
implementations were added for DCN314.
Reviewed-by: Michael Strauss <Michael.Strauss@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_hwss_dio.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_hwss_dio.c b/drivers/gpu/drm/amd/display/dc/link/link_hwss_dio.c index 776e822abcbb..5e92019539c8 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_hwss_dio.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_hwss_dio.c @@ -40,17 +40,24 @@ void set_dio_throttled_vcp_size(struct pipe_ctx *pipe_ctx, void setup_dio_stream_encoder(struct pipe_ctx *pipe_ctx) { struct link_encoder *link_enc = link_enc_cfg_get_link_enc(pipe_ctx->stream->link); + struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc; link_enc->funcs->connect_dig_be_to_fe(link_enc, pipe_ctx->stream_res.stream_enc->id, true); if (dc_is_dp_signal(pipe_ctx->stream->signal)) dp_source_sequence_trace(pipe_ctx->stream->link, DPCD_SOURCE_SEQ_AFTER_CONNECT_DIG_FE_BE); + if (stream_enc->funcs->enable_fifo) + stream_enc->funcs->enable_fifo(stream_enc); } void reset_dio_stream_encoder(struct pipe_ctx *pipe_ctx) { struct link_encoder *link_enc = link_enc_cfg_get_link_enc(pipe_ctx->stream->link); + struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc; + + if (stream_enc && stream_enc->funcs->disable_fifo) + stream_enc->funcs->disable_fifo(stream_enc); link_enc->funcs->connect_dig_be_to_fe( link_enc, |