drm/i915: Fix transposed arguments to skl_plane_wm_level()

Accidentally transposed the arguments to skl_plane_wm_level()
which is causing us to mistakenly think that the plane watermarks
have/have not changed when the opposite may be true. Swap the
arguments so this actually works.

The other uses of this look OK.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Fixes: 2871b2fde449 ("drm/i915: Fix TGL+ plane SAGV watermark programming")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210325004415.17432-1-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 820f850..b2aede2 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6017,8 +6017,8 @@ static bool skl_plane_selected_wm_equals(struct intel_plane *plane,
                 * use it. It only gets used for calculating the required
                 * ddb allocation.
                 */
-               if (!skl_wm_level_equals(skl_plane_wm_level(old_pipe_wm, level, plane->id),
-                                        skl_plane_wm_level(new_pipe_wm, level, plane->id)))
+               if (!skl_wm_level_equals(skl_plane_wm_level(old_pipe_wm, plane->id, level),
+                                        skl_plane_wm_level(new_pipe_wm, plane->id, level)))
                        return false;
        }