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 17d1990ea832d87a41575ee86574d913500b66c8..05c1ad98a1f65148a2c21b02ac558bf67b984aed 100644 (file)
--- 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];