FAILED: patch "[PATCH] drm/amd/display: Update modifier list for gfx10_3" failed to apply to 5.11-stable tree

[<gregkh@xxxxxxxxxxxxxxxxxxx>]

The patch below does not apply to the 5.11-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

>From 6d638b3ffd27036c062d32cb4efd4be172c2a65e Mon Sep 17 00:00:00 2001
From: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Date: Wed, 14 Apr 2021 19:00:01 -0400
Subject: [PATCH] drm/amd/display: Update modifier list for gfx10_3

[Why]
Current list supports modifiers that have DCC_MAX_COMPRESSED_BLOCK
set to AMD_FMT_MOD_DCC_BLOCK_128B, while AMD_FMT_MOD_DCC_BLOCK_64B
is used instead by userspace.

[How]
Replace AMD_FMT_MOD_DCC_BLOCK_128B with AMD_FMT_MOD_DCC_BLOCK_64B
for modifiers with DCC supported.

Fixes: faa37f54ce0462 ("drm/amd/display: Expose modifiers")
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Reviewed-by: Bas Nieuwenhuizen <bas@xxxxxxxxxxxxxxxxxxx>
Tested-by: Bas Nieuwenhuizen <bas@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 573cf17262da..57e5900059ed 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4296,7 +4296,7 @@ add_gfx10_3_modifiers(const struct amdgpu_device *adev,
 		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
 		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
 		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
-		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_128B));
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B));
 
 	add_modifier(mods, size, capacity, AMD_FMT_MOD |
 		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
@@ -4308,7 +4308,7 @@ add_gfx10_3_modifiers(const struct amdgpu_device *adev,
 		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
 		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
 		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
-		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_128B));
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B));
 
 	add_modifier(mods, size, capacity, AMD_FMT_MOD |
 		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |