Mark the ACPI CPU throttle and timer IO regions busy.

This should help some laptops where the generic PCI
code might otherwise believe that this range is unused.
The ACPI IO range is usually not visible as a standard
BAR.

diff --git a/drivers/acpi/processor.c b/drivers/acpi/processor.c
index d0c50022573c1a7c25411143144ef227c39ce781..99c02080f3a5080a2a33888fa25aef950fbb811f 100644 (file)
--- a/drivers/acpi/processor.c
+++ b/drivers/acpi/processor.c
@@ -2225,6 +2225,16 @@ acpi_processor_get_info (
                        object.processor.pblk_address + 4;
                pr->power.states[ACPI_STATE_C3].address =
                        object.processor.pblk_address + 5;
+
+               /*
+                * We don't care about error returns - we just try to mark
+                * these reserved so that nobody else is confused into thinking
+                * that this region might be unused..
+                *
+                * (In particular, allocating the IO range for Cardbus)
+                */
+               request_region(pr->throttling.address, 6, "ACPI CPU throttle");
+               request_region(acpi_fadt.xpm_tmr_blk.address, 4, "ACPI timer");
        }
 
        acpi_processor_get_power_info(pr);