[PATCH 04/36] Revert "drm/amd/display: workaround for oled eDP not lighting up on DCN401"

[Hamza Mahfooz]

From: Joshua Aberback <joshua.aberb...@amd.com>

This reverts commit e296c84e7d0561ed626591e1cf9b71a7ba0133f4.

A proper fix for this issue has been implemented in DMUB FW. So, no need
to keep the workaround.

Reviewed-by: Wenjing Liu <wenjing....@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahf...@amd.com>
Signed-off-by: Joshua Aberback <joshua.aberb...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc.h                            | 1 -
 .../drm/amd/display/dc/link/protocols/link_edp_panel_control.c | 3 ---
 .../gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c   | 1 -
 3 files changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h 
b/drivers/gpu/drm/amd/display/dc/dc.h
index 35ca38ea2efa..b9c67bac7beb 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -1045,7 +1045,6 @@ struct dc_debug_options {
        unsigned int force_easf;
        unsigned int force_sharpness;
        unsigned int force_lls;
-       bool edp_oled_no_backlight_enable;
 };
 
 
diff --git 
a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c 
b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
index b0e17064a960..455b85adec28 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
@@ -248,9 +248,6 @@ bool edp_backlight_enable_aux(struct dc_link *link, bool 
enable)
                link->connector_signal != SIGNAL_TYPE_DISPLAY_PORT))
                return false;
 
-       if (link->dc->debug.edp_oled_no_backlight_enable && 
link->dpcd_sink_ext_caps.bits.oled)
-               return true;
-
        if (core_link_write_dpcd(link, DP_SOURCE_BACKLIGHT_ENABLE,
                &backlight_enable, 1) != DC_OK)
                return false;
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c 
b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
index d78dc63f82fd..74fb21b88f12 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c
@@ -731,7 +731,6 @@ static const struct dc_debug_options debug_defaults_drv = {
                }
        },
        .force_cositing = CHROMA_COSITING_TOPLEFT + 1,
-       .edp_oled_no_backlight_enable = true,
 };
 
 static struct dce_aux *dcn401_aux_engine_create(
-- 
2.45.1