drm/xe/device: Use poll_timeout_us() to wait for lmem

Now that there's a generic poll_timeout_us(), use it to wait for
LMEM_INIT in GU_CNTL.

Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Link: https://lore.kernel.org/r/20250922-xe-iopoll-v4-1-06438311a63f@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Lucas De Marchi 2025-09-22 12:58:29 -07:00
commit 09ab20c41a