xref: /linux/drivers/gpu/drm/nouveau/nvkm/subdev/volt/nv40.c (revision e0bf6c5ca2d3281f231c5f0c9bf145e9513644de)
1 /*
2  * Copyright 2013 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 <subdev/volt.h>
25 
26 struct nv40_volt_priv {
27 	struct nvkm_volt base;
28 };
29 
30 static int
31 nv40_volt_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
32 	       struct nvkm_oclass *oclass, void *data, u32 size,
33 	       struct nvkm_object **pobject)
34 {
35 	struct nv40_volt_priv *priv;
36 	int ret;
37 
38 	ret = nvkm_volt_create(parent, engine, oclass, &priv);
39 	*pobject = nv_object(priv);
40 	if (ret)
41 		return ret;
42 
43 	return 0;
44 }
45 
46 struct nvkm_oclass
47 nv40_volt_oclass = {
48 	.handle = NV_SUBDEV(VOLT, 0x40),
49 	.ofuncs = &(struct nvkm_ofuncs) {
50 		.ctor = nv40_volt_ctor,
51 		.dtor = _nvkm_volt_dtor,
52 		.init = _nvkm_volt_init,
53 		.fini = _nvkm_volt_fini,
54 	},
55 };
56