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