diff options
| author | Alvin Lee <[email protected]> | 2024-05-20 12:52:31 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-06-14 15:34:31 -0400 |
| commit | cf58fdca000f6c95b881290405f0beb711d5d921 (patch) | |
| tree | 7f8212170470d7368ac1bf340f6aab33ded20931 | |
| parent | 839eb4bbbd9617e60ef2091cb7bad2bae7c519d5 (diff) | |
drm/amd/display: Program DIG FE source select for DVI before PHY en
[Description]
In newer DCN's the programming of SYMCLK_FE_SRC_SEL depends on
the value of DIG_FE_SOURCE_SELECT. If DIG_FE_SOURCE_SELECT is not
already programmed at the time of PHY / DIG enable then the FW
sequence will program an incorrect SYMCLK source. Ensure that we
program DIG_FE_SOURCE_SELECT for all DIO scenarios (DVI in this
particular case) before going through the PHY / DIG enable sequence.
Reviewed-by: Wenjing Liu <[email protected]>
Acked-by: Zaeem Mohamed <[email protected]>
Signed-off-by: Alvin Lee <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_dpms.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index a9ddbe12142f..65607589495f 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -1976,7 +1976,7 @@ static void enable_link_hdmi(struct pipe_ctx *pipe_ctx) /* We need to enable stream encoder for TMDS first to apply 1/4 TMDS * character clock in case that beyond 340MHz. */ - if (dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal)) + if (dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal) || dc_is_dvi_signal(pipe_ctx->stream->signal)) link_hwss->setup_stream_encoder(pipe_ctx); dc->hwss.enable_tmds_link_output( |