drm/i915/pfit: Prevent negative coordinates in center mode

When the pipe_src width or height are greater than adjusted_mode hdisplay
and vdisplay, computed x and y offsets for center mode can be negative.
Writing negative values into the pch_fit registers result in a state error.
Add a check to clamp these values so that they are never negative.

v2: Compare in terms of pipe_src width and height.[Ville]
v3: Change width/height to pipe_src_w/h in logging. [Ville]

Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260402061310.111073-1-nemesa.garg@intel.com

0 files changed, 0 insertions, 0 deletions