patch-2.4.23 linux-2.4.23/drivers/acpi/hardware/hwacpi.c
Next file: linux-2.4.23/drivers/acpi/namespace/nsdump.c
Previous file: linux-2.4.23/drivers/acpi/executer/exsystem.c
Back to the patch index
Back to the overall index
- Lines: 16
- Date:
2003-11-28 10:26:19.000000000 -0800
- Orig file:
linux-2.4.22/drivers/acpi/hardware/hwacpi.c
- Orig date:
2003-08-25 04:44:41.000000000 -0700
diff -urN linux-2.4.22/drivers/acpi/hardware/hwacpi.c linux-2.4.23/drivers/acpi/hardware/hwacpi.c
@@ -212,6 +212,15 @@
if (!acpi_gbl_FADT->smi_cmd)
return_VALUE (ACPI_SYS_MODE_ACPI);
+
+ /*
+ * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
+ * system does not support mode transition.
+ */
+ if (!acpi_gbl_FADT->smi_cmd) {
+ return_VALUE (ACPI_SYS_MODE_ACPI);
+ }
+
status = acpi_get_register (ACPI_BITREG_SCI_ENABLE, &value, ACPI_MTX_LOCK);
if (ACPI_FAILURE (status)) {
return_VALUE (ACPI_SYS_MODE_LEGACY);
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)