3526ecadc8
Use ACPI_FAILURE() to replace !ACPI_SUCCESS(), this avoid !! operations. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
|
|
* 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_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}
|
|
};
|
|
|
|
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);
|