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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
*/
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/platform_device.h>
MODULE_DESCRIPTION("Intel Smart Connect disabling driver");
MODULE_LICENSE("GPL");
static int smartconnect_acpi_probe(struct platform_device *pdev)
{
unsigned long long value;
acpi_handle handle;
acpi_status status;
handle = ACPI_HANDLE(&pdev->dev);
if (!handle)
return -ENODEV;
status = acpi_evaluate_integer(handle, "GAOS", NULL, &value);
if (ACPI_FAILURE(status))
return -EINVAL;
if (value & 0x1) {
dev_info(&pdev->dev, "Disabling Intel Smart Connect\n");
status = acpi_execute_simple_method(handle, "SAOS", 0);
}
return 0;
}
static const struct acpi_device_id smartconnect_ids[] = {
{"INT33A0", 0},
{"", 0}
};
MODULE_DEVICE_TABLE(acpi, smartconnect_ids);
static struct platform_driver smartconnect_driver = {
.probe = smartconnect_acpi_probe,
.driver = {
.name = "intel_smart_connect",
.acpi_match_table = smartconnect_ids,
},
};
module_platform_driver(smartconnect_driver);
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