[PATCH 17/33] drm/amd/display: Fix 3DLUT skipped programming

[Rodrigo Siqueira]

From: Aric Cyr <aric....@amd.com>

This reverts commit 3ae5ca4b92a5c230c3fe25956996ae4bf1875422.

We found a compilation error that we thought was caused by the 3DLUT
patch; later on, we figured out the root cause of the problem, but we
already applied the revert in the wrong patch. This commit brings it
back  the 3DLUT fix.

Acked-by: Agustin Gutierrez <agustin.gutier...@amd.com>
Signed-off-by: Aric Cyr <aric....@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++
 drivers/gpu/drm/amd/display/dc/dc.h      | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c 
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 6dbcb1b1eb5c..6d33ff2bbebe 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2285,6 +2285,9 @@ static enum surface_update_type det_surface_update(const 
struct dc *dc,
                        update_flags->bits.gamma_change = 1;
        }
 
+       if (u->lut3d_func || u->func_shaper)
+               update_flags->bits.lut_3d = 1;
+
        if (u->hdr_mult.value)
                if (u->hdr_mult.value != u->surface->hdr_mult.value) {
                        update_flags->bits.hdr_mult = 1;
@@ -2298,6 +2301,7 @@ static enum surface_update_type det_surface_update(const 
struct dc *dc,
 
        if (update_flags->bits.input_csc_change
                        || update_flags->bits.coeff_reduction_change
+                       || update_flags->bits.lut_3d
                        || update_flags->bits.gamma_change
                        || update_flags->bits.gamut_remap_change) {
                type = UPDATE_TYPE_FULL;
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h 
b/drivers/gpu/drm/amd/display/dc/dc.h
index 4cd04a78f926..1225406d3381 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -940,6 +940,7 @@ union surface_update_flags {
                uint32_t bandwidth_change:1;
                uint32_t clock_change:1;
                uint32_t stereo_format_change:1;
+               uint32_t lut_3d:1;
                uint32_t full_update:1;
        } bits;
 
-- 
2.25.1