1/*	$NetBSD: nouveau_nvkm_subdev_volt_gf117.c,v 1.2 2021/12/18 23:45:42 riastradh Exp $	*/
2
3/*
4 * Copyright 2019 Ilia Mirkin
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ilia Mirkin
25 */
26#include <sys/cdefs.h>
27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_volt_gf117.c,v 1.2 2021/12/18 23:45:42 riastradh Exp $");
28
29#include "priv.h"
30
31#include <subdev/fuse.h>
32
33static int
34gf117_volt_speedo_read(struct nvkm_volt *volt)
35{
36	struct nvkm_device *device = volt->subdev.device;
37	struct nvkm_fuse *fuse = device->fuse;
38
39	if (!fuse)
40		return -EINVAL;
41
42	return nvkm_fuse_read(fuse, 0x3a8);
43}
44
45static const struct nvkm_volt_func
46gf117_volt = {
47	.oneinit = gf100_volt_oneinit,
48	.vid_get = nvkm_voltgpio_get,
49	.vid_set = nvkm_voltgpio_set,
50	.speedo_read = gf117_volt_speedo_read,
51};
52
53int
54gf117_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
55{
56	struct nvkm_volt *volt;
57	int ret;
58
59	ret = nvkm_volt_new_(&gf117_volt, device, index, &volt);
60	*pvolt = volt;
61	if (ret)
62		return ret;
63
64	return nvkm_voltgpio_init(volt);
65}
66