LXR linux/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 "priv.h"
  25
  26static const struct nvkm_volt_func
  27nv40_volt = {
  28        .vid_get = nvkm_voltgpio_get,
  29        .vid_set = nvkm_voltgpio_set,
  30};
  31
  32int
  33nv40_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
  34{
  35        struct nvkm_volt *volt;
  36        int ret;
  37
  38        ret = nvkm_volt_new_(&nv40_volt, device, index, &volt);
  39        *pvolt = volt;
  40        if (ret)
  41                return ret;
  42
  43        return nvkm_voltgpio_init(volt);
  44}
  45