[PATCH 29/37] drm/amd/display: contional remove disable dig_fifo when blank

[Rodrigo Siqueira]

From: Charlene Liu <charlene....@amd.com>

keep dig_fifo enable for test pattern generation.

Reviewed-by: Chris Park <chris.p...@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Charlene Liu <charlene....@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc.h                            | 1 +
 .../gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c  | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h 
b/drivers/gpu/drm/amd/display/dc/dc.h
index 72963617553e..53f449fa2b71 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -873,6 +873,7 @@ struct dc_debug_options {
        unsigned int dsc_delay_factor_wa_x1000;
        unsigned int min_prefetch_in_strobe_ns;
        bool disable_unbounded_requesting;
+       bool dig_fifo_off_in_blank;
 };
 
 struct gpu_info_soc_bounding_box_v1_0;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c 
b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c
index 9c9875368bea..67f4589f3e23 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c
@@ -281,7 +281,8 @@ static void enc314_stream_encoder_dp_blank(
        enc1_stream_encoder_dp_blank(link, enc);
 
        /* Disable FIFO after the DP vid stream is disabled to avoid 
corruption. */
-       enc314_disable_fifo(enc);
+       if (enc->ctx->dc->debug.dig_fifo_off_in_blank)
+               enc314_disable_fifo(enc);
 }
 
 static void enc314_stream_encoder_dp_unblank(
-- 
2.39.0