1 /* 2 * Copyright 2019 Ilia Mirkin 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: Ilia Mirkin 23 */ 24 #include "priv.h" 25 26 #include <subdev/fuse.h> 27 28 static int 29 gf117_volt_speedo_read(struct nvkm_volt *volt) 30 { 31 struct nvkm_device *device = volt->subdev.device; 32 struct nvkm_fuse *fuse = device->fuse; 33 34 if (!fuse) 35 return -EINVAL; 36 37 return nvkm_fuse_read(fuse, 0x3a8); 38 } 39 40 static const struct nvkm_volt_func 41 gf117_volt = { 42 .oneinit = gf100_volt_oneinit, 43 .vid_get = nvkm_voltgpio_get, 44 .vid_set = nvkm_voltgpio_set, 45 .speedo_read = gf117_volt_speedo_read, 46 }; 47 48 int 49 gf117_volt_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 50 struct nvkm_volt **pvolt) 51 { 52 struct nvkm_volt *volt; 53 int ret; 54 55 ret = nvkm_volt_new_(&gf117_volt, device, type, inst, &volt); 56 *pvolt = volt; 57 if (ret) 58 return ret; 59 60 return nvkm_voltgpio_init(volt); 61 } 62