drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c

   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 #include "priv.h"
  24 #include "gk20a.h"
  25
  26 #include <core/tegra.h>
  27
  28 const struct cvb_coef gm20b_cvb_coef[] = {
  29         /* KHz,             c0,      c1,   c2 */
  30         /*  76800 */ { 1786666,  -85625, 1632 },
  31         /* 153600 */ { 1846729,  -87525, 1632 },
  32         /* 230400 */ { 1910480,  -89425, 1632 },
  33         /* 307200 */ { 1977920,  -91325, 1632 },
  34         /* 384000 */ { 2049049,  -93215, 1632 },
  35         /* 460800 */ { 2122872,  -95095, 1632 },
  36         /* 537600 */ { 2201331,  -96985, 1632 },
  37         /* 614400 */ { 2283479,  -98885, 1632 },
  38         /* 691200 */ { 2369315, -100785, 1632 },
  39         /* 768000 */ { 2458841, -102685, 1632 },
  40         /* 844800 */ { 2550821, -104555, 1632 },
  41         /* 921600 */ { 2647676, -106455, 1632 },
  42 };
  43
  44 int
  45 gm20b_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
  46 {
  47         struct gk20a_volt *volt;
  48
  49         volt = kzalloc(sizeof(*volt), GFP_KERNEL);
  50         if (!volt)
  51                 return -ENOMEM;
  52         *pvolt = &volt->base;
  53
  54         return gk20a_volt_ctor(device, index, gm20b_cvb_coef,
  55                                ARRAY_SIZE(gm20b_cvb_coef), volt);
  56 }