return_ACPI_STATUS(AE_NOT_EXIST);
}
- /* Write the reset value to the reset register */
+ if (reset_reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+ /*
+ * For I/O space, write directly to the OSL. This bypasses the port
+ * validation mechanism, which may block a valid write to the reset
+ * register.
+ */
+ status =
+ acpi_os_write_port((acpi_io_address) reset_reg->address,
+ acpi_gbl_FADT.reset_value,
+ reset_reg->bit_width);
+ } else {
+ /* Write the reset value to the reset register */
+
+ status = acpi_hw_write(acpi_gbl_FADT.reset_value, reset_reg);
+ }
- status = acpi_hw_write(acpi_gbl_FADT.reset_value, reset_reg);
return_ACPI_STATUS(status);
}