[Why]
This patch is for fixing Navi14 pink screen issue. With this
patch, stream->link->link_enc->funcs->setup will be called
twice: this will make sure GC_SEND is set to 1. Though we
still need to look into why the issue only happens on
Linux, but not on Windows side.
[How]
Call stream->link->link_enc->funcs->setup twice.
Signed-off-by: Zhan liu <zhan.liu@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 6 ++++++
1 file changed, 6 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 935053664160..8683e8613ec2 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -2842,6 +2842,12 @@ void core_link_enable_stream(
CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
COLOR_DEPTH_UNDEFINED);
+ /* Hack on Navi14: fixes Navi14 HDMI pink screen issue */
+ if (!dc_is_virtual_signal(pipe_ctx->stream->signal))
+ stream->link->link_enc->funcs->setup(
+ stream->link->link_enc,
+ pipe_ctx->stream->signal);
+
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
if (pipe_ctx->stream->timing.flags.DSC) {
if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
--
2.17.0
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