| // SPDX-License-Identifier: GPL-2.0+ | |
| /* | |
| * Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org> | |
| */ | |
| #include <linux/acpi.h> | |
| #include <linux/module.h> | |
| MODULE_LICENSE("GPL"); | |
| static int smartconnect_acpi_init(struct acpi_device *acpi) | |
| { | |
| unsigned long long value; | |
| acpi_status status; | |
| status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value); | |
| if (ACPI_FAILURE(status)) | |
| return -EINVAL; | |
| if (value & 0x1) { | |
| dev_info(&acpi->dev, "Disabling Intel Smart Connect\n"); | |
| status = acpi_execute_simple_method(acpi->handle, "SAOS", 0); | |
| } | |
| return 0; | |
| } | |
| static const struct acpi_device_id smartconnect_ids[] = { | |
| {"INT33A0", 0}, | |
| {"", 0} | |
| }; | |
| MODULE_DEVICE_TABLE(acpi, smartconnect_ids); | |
| static struct acpi_driver smartconnect_driver = { | |
| .owner = THIS_MODULE, | |
| .name = "intel_smart_connect", | |
| .class = "intel_smart_connect", | |
| .ids = smartconnect_ids, | |
| .ops = { | |
| .add = smartconnect_acpi_init, | |
| }, | |
| }; | |
| module_acpi_driver(smartconnect_driver); |