drm/amdgpu: fix comment about amdgpu.abmlevel defaults

Since 040fdcde288a ("drm/amdgpu: respect the abmlevel module parameter value
if it is set"), the default value for amdgpu.abmlevel was set to -1, or auto.
However, the comment explaining the default value was not updated to reflect
the change (-1, or auto; not -1, or disabled).

Clarify that the default value (-1) means auto.

Fixes: 040fdcde288a ("drm/amdgpu: respect the abmlevel module parameter value if it is set")
Reported-by: Ruikai Liu <rickliu2000@outlook.com>
Signed-off-by: Mingcong Bai <jeffbai@aosc.io>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index ff3ac30..054d183 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -887,7 +887,7 @@ module_param_named(visualconfirm, amdgpu_dc_visual_confirm, uint, 0444);
  * the ABM algorithm, with 1 being the least reduction and 4 being the most
  * reduction.
  *
- * Defaults to -1, or disabled. Userspace can only override this level after
+ * Defaults to -1, or auto. Userspace can only override this level after
  * boot if it's set to auto.
  */
 int amdgpu_dm_abm_level = -1;