acpi_os_ioremap uses cached mappings, however it appears that i915 wants to read dynamic platform state. Switch to ioremap() to prevent it reading stale state from cache.
Cc: Daniel Vetter <[email protected]> Cc: Jani Nikula <[email protected]> Cc: [email protected] Cc: David Airlie <[email protected]> Cc: [email protected] Signed-off-by: Dan Williams <[email protected]> --- drivers/gpu/drm/i915/intel_opregion.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 481337436f72..16ba7c67410d 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -863,7 +863,7 @@ int intel_opregion_setup(struct drm_device *dev) INIT_WORK(&opregion->asle_work, asle_work); #endif - base = acpi_os_ioremap(asls, OPREGION_SIZE); + base = ioremap(asls, OPREGION_SIZE); if (!base) return -ENOMEM; _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
