1/*
2 * Copyright 2014 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24#include "acpi.h"
25
26#include <core/device.h>
27#include <subdev/clk.h>
28
29#ifdef CONFIG_ACPI
30static int
31nvkm_acpi_ntfy(struct notifier_block *nb, unsigned long val, void *data)
32{
33	struct nvkm_device *device = container_of(nb, typeof(*device), acpi.nb);
34	struct acpi_bus_event *info = data;
35
36	if (!strcmp(info->device_class, "ac_adapter"))
37		nvkm_clk_pwrsrc(device);
38
39	return NOTIFY_DONE;
40}
41#endif
42
43void
44nvkm_acpi_fini(struct nvkm_device *device)
45{
46#ifdef CONFIG_ACPI
47	unregister_acpi_notifier(&device->acpi.nb);
48#endif
49}
50
51void
52nvkm_acpi_init(struct nvkm_device *device)
53{
54#ifdef CONFIG_ACPI
55	device->acpi.nb.notifier_call = nvkm_acpi_ntfy;
56	register_acpi_notifier(&device->acpi.nb);
57#endif
58}
59