drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.h

   1 /*
   2  * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
   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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #ifndef __GK20A_VOLT_H__
  24 #define __GK20A_VOLT_H__
  25
  26 struct cvb_coef {
  27         int c0;
  28         int c1;
  29         int c2;
  30         int c3;
  31         int c4;
  32         int c5;
  33 };
  34
  35 struct gk20a_volt {
  36         struct nvkm_volt base;
  37         struct regulator *vdd;
  38 };
  39
  40 int _gk20a_volt_ctor(struct nvkm_device *device, int index,
  41                      const struct cvb_coef *coefs, int nb_coefs,
  42                      struct gk20a_volt *volt);
  43
  44 int gk20a_volt_calc_voltage(const struct cvb_coef *coef, int speedo);
  45 int gk20a_volt_vid_get(struct nvkm_volt *volt);
  46 int gk20a_volt_vid_set(struct nvkm_volt *volt, u8 vid);
  47 int gk20a_volt_set_id(struct nvkm_volt *volt, u8 id, int condition);
  48
  49 #endif