[PATCH 42/49] drm/amd/display: change dcc_rate from 1 to 2 for log use only

From: Charlene Liu <[email protected]>

[why]
The dcc_rate value does not affect any watermark, TTU or DLG output; it
only affects the Z8 stutter-related logging. The hardware
DisplayModeSupported formula uses a dcc_rate of 4, while DML2 currently
uses 1.

[how]
Change dcc_rate from 1 to 2 so the logged value is closer to the
hardware formula.

Reviewed-by: Dillon Varone <[email protected]>
Signed-off-by: Charlene Liu <[email protected]>
Signed-off-by: Matthew Stewart <[email protected]>
Tested-by: Dan Wheeler <[email protected]>
---
 .../display/dc/dml2_0/dml21/dml21_translation_helper.c    | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/dml21_translation_helper.c
index a76dcde1efbf..47164fa150d9 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/dml21_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/dml21_translation_helper.c
@@ -447,8 +447,8 @@ static void populate_dml21_dummy_surface_cfg(struct dml2_surface_cfg *surface, c
 	surface->plane0.pitch = ((surface->plane0.width + 127) / 128) * 128;
 	surface->plane1.pitch = 0;
 	surface->dcc.enable = false;
-	surface->dcc.informative.dcc_rate_plane0 = 1.0;
-	surface->dcc.informative.dcc_rate_plane1 = 1.0;
+	surface->dcc.informative.dcc_rate_plane0 = 2.0;
+	surface->dcc.informative.dcc_rate_plane1 = 2.0;
 	surface->dcc.informative.fraction_of_zero_size_request_plane0 = 0;
 	surface->dcc.informative.fraction_of_zero_size_request_plane1 = 0;
 	surface->tiling = dml2_sw_64kb_2d;
@@ -517,8 +517,8 @@ static void populate_dml21_surface_config_from_plane_state(
 	surface->plane1.height = plane_state->plane_size.chroma_size.height;
 	surface->plane1.width = plane_state->plane_size.chroma_size.width;
 	surface->dcc.enable = plane_state->dcc.enable;
-	surface->dcc.informative.dcc_rate_plane0 = 1.0;
-	surface->dcc.informative.dcc_rate_plane1 = 1.0;
+	surface->dcc.informative.dcc_rate_plane0 = 2.0;
+	surface->dcc.informative.dcc_rate_plane1 = 2.0;
 	surface->dcc.informative.fraction_of_zero_size_request_plane0 = plane_state->dcc.independent_64b_blks;
 	surface->dcc.informative.fraction_of_zero_size_request_plane1 = plane_state->dcc.independent_64b_blks_c;
 	surface->dcc.plane0.pitch = plane_state->dcc.meta_pitch;
-- 
2.53.0