drm/xe/pm: Correct comment of xe_pm_set_vram_threshold()

[ Upstream commit 0539c5eaf81f3f844213bf6b3137a53e5b04b083 ]

The parameter threshold is with size in MiB, not in bits.
Correct it to avoid any confusion.

v2: s/mb/MiB, s/vram/VRAM, fix return section. (Michal)

Fixes: 30c399529f4c ("drm/xe: Document Xe PM component")
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Link: https://lore.kernel.org/r/20250708021450.3602087-2-shuicheng.lin@intel.com
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 0efec0500117947f924e5ac83be40f96378af85a)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c
index 06f50aa313267a5f92a1f2f3230e761498593262..46c73ff10c74715aed1f5161ff38a6754153f7f8 100644 (file)
--- a/drivers/gpu/drm/xe/xe_pm.c
+++ b/drivers/gpu/drm/xe/xe_pm.c
@@ -682,11 +682,13 @@ void xe_pm_assert_unbounded_bridge(struct xe_device *xe)
 }
 
 /**
- * xe_pm_set_vram_threshold - Set a vram threshold for allowing/blocking D3Cold
+ * xe_pm_set_vram_threshold - Set a VRAM threshold for allowing/blocking D3Cold
  * @xe: xe device instance
- * @threshold: VRAM size in bites for the D3cold threshold
+ * @threshold: VRAM size in MiB for the D3cold threshold
  *
- * Returns 0 for success, negative error code otherwise.
+ * Return:
+ * * 0         - success
+ * * -EINVAL   - invalid argument
  */
 int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold)
 {