From: Aurabindo Pillai <aurabindo.pillai@amd.com>
Date: Fri, 18 Aug 2023 17:36:06 +0000 (-0400)
Subject: drm/amd/display: set default return value for ODM Combine debugfs
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e9981e8e751330cb5aa43d06f2aec080807717e8;p=linux.git

drm/amd/display: set default return value for ODM Combine debugfs

[Why&How]
Set a default return value of -ENOTSUPP to indicate that the hardware
does not support querying ODM Combine mode.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 17d1990ea832d..05c1ad98a1f65 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -1211,7 +1211,7 @@ static int odm_combine_segments_show(struct seq_file *m, void *unused)
 	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
 	struct dc_link *link = aconnector->dc_link;
 	struct pipe_ctx *pipe_ctx = NULL;
-	int i, segments = 0;
+	int i, segments = -EOPNOTSUPP;
 
 	for (i = 0; i < MAX_PIPES; i++) {
 		pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i];