drivers/gpu/drm/nouveau/nvkm/subdev/volt/nv40.c

   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 };