From 5fcb6c9cceacd7dc940a9e6c2404cad18ae0ff3b Mon Sep 17 00:00:00 2001
From: joe <joe>
Date: Wed, 1 Nov 2023 22:45:32 +0100
Subject: [PATCH] Revert "drm/amd/display: don't enable DRM CRTC degamma
 property for DCE"

This reverts commit c17b7a58e5c3ccd108b440cbdb04ad01b6fd2857.
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
index cb0b48bb2a7d..1770ce89892c 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -441,7 +441,7 @@ int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
 {
 	struct amdgpu_crtc *acrtc = NULL;
 	struct drm_plane *cursor_plane;
-	bool is_dcn;
+
 	int res = -ENOMEM;
 
 	cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL);
@@ -479,14 +479,8 @@ int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
 	acrtc->otg_inst = -1;
 
 	dm->adev->mode_info.crtcs[crtc_index] = acrtc;
-
-	/* Don't enable DRM CRTC degamma property for DCE since it doesn't
-	 * support programmable degamma anywhere.
-	 */
-	is_dcn = dm->adev->dm.dc->caps.color.dpp.dcn_arch;
-	drm_crtc_enable_color_mgmt(&acrtc->base, is_dcn ? MAX_COLOR_LUT_ENTRIES : 0,
+	drm_crtc_enable_color_mgmt(&acrtc->base, MAX_COLOR_LUT_ENTRIES,
 				   true, MAX_COLOR_LUT_ENTRIES);
-
 	drm_mode_crtc_set_gamma_size(&acrtc->base, MAX_COLOR_LEGACY_LUT_ENTRIES);
 
 	return 0;
-- 
2.41.0