From: Charlene Liu <charlene.liu@amd.com>
Date: Mon, 28 Aug 2017 19:33:23 -0400
Subject: drm/amd/display: not override the FMT setting set by VBIOS for eDP
Git-commit: 1f0997f1555571a9c16205a851ffbce92097196d
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1082,11 +1082,14 @@ static enum dc_status apply_single_contr
/*vbios crtc_source_selection and encoder_setup will override fmt_C*/
- pipe_ctx->stream_res.opp->funcs->opp_program_fmt(
+ if (pipe_ctx->stream->signal != SIGNAL_TYPE_EDP &&
+ pipe_ctx->stream->signal != SIGNAL_TYPE_LVDS) {
+ /*for embedded panel, don't override VBIOS's setting*/
+ pipe_ctx->stream_res.opp->funcs->opp_program_fmt(
pipe_ctx->stream_res.opp,
&stream->bit_depth_params,
&stream->clamping);
-
+ }
if (dc_is_dp_signal(pipe_ctx->stream->signal))
pipe_ctx->stream_res.stream_enc->funcs->dp_set_stream_attribute(
pipe_ctx->stream_res.stream_enc,