[PATCH 20/32] drm/amd/display: csc updates require FULL update

[Harry Wentland]

From: Anthony Koo <anthony....@amd.com>

Signed-off-by: Anthony Koo <anthony....@amd.com>
Reviewed-by: Aric Cyr <aric....@amd.com>
Acked-by: Harry Wentland <harry.wentl...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 12 ++++++++++--
 drivers/gpu/drm/amd/display/dc/dc.h      |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c 
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 74f516903acd..5c7fa0412da1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1152,12 +1152,20 @@ static enum surface_update_type 
det_surface_update(const struct dc *dc,
        if (u->input_csc_color_matrix)
                update_flags->bits.input_csc_change = 1;
 
-       if (update_flags->bits.in_transfer_func_change
-                       || update_flags->bits.input_csc_change) {
+       if (u->coeff_reduction_factor)
+               update_flags->bits.coeff_reduction_change = 1;
+
+       if (update_flags->bits.in_transfer_func_change) {
                type = UPDATE_TYPE_MED;
                elevate_update_type(&overall_type, type);
        }
 
+       if (update_flags->bits.input_csc_change
+                       || update_flags->bits.coeff_reduction_change) {
+               type = UPDATE_TYPE_FULL;
+               elevate_update_type(&overall_type, type);
+       }
+
        return overall_type;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h 
b/drivers/gpu/drm/amd/display/dc/dc.h
index 63817ed56c11..7d1a3c5d1b10 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -429,6 +429,7 @@ union surface_update_flags {
                uint32_t position_change:1;
                uint32_t in_transfer_func_change:1;
                uint32_t input_csc_change:1;
+               uint32_t coeff_reduction_change:1;
                uint32_t output_tf_change:1;
                uint32_t pixel_format_change:1;
 
-- 
2.15.1

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