1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel-smartconnect.c b/drivers/platform/x86/intel-smartconnect.c
new file mode 100644
index 00000000000..04cf5dffdfd
--- /dev/null
+++ b/drivers/platform/x86/intel-smartconnect.c
@@ -0,0 +1,60 @@
+/*
+ *  Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/acpi.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_SUCCESS(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}
+};
+
+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);
+
+MODULE_DEVICE_TABLE(acpi, smartconnect_ids);