72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
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/*
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* Copyright 2016 Karol Herbst
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Karol Herbst
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*/
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#include "priv.h"
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#include <subdev/fuse.h>
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static int
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gf100_volt_speedo_read(struct nvkm_volt *volt)
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{
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struct nvkm_device *device = volt->subdev.device;
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struct nvkm_fuse *fuse = device->fuse;
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if (!fuse)
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return -EINVAL;
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return nvkm_fuse_read(fuse, 0x1cc);
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}
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int
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gf100_volt_oneinit(struct nvkm_volt *volt)
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{
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struct nvkm_subdev *subdev = &volt->subdev;
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if (volt->speedo <= 0)
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nvkm_error(subdev, "couldn't find speedo value, volting not "
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"possible\n");
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return 0;
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}
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static const struct nvkm_volt_func
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gf100_volt = {
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.oneinit = gf100_volt_oneinit,
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.vid_get = nvkm_voltgpio_get,
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.vid_set = nvkm_voltgpio_set,
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.speedo_read = gf100_volt_speedo_read,
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};
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int
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gf100_volt_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_volt **pvolt)
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{
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struct nvkm_volt *volt;
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int ret;
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ret = nvkm_volt_new_(&gf100_volt, device, type, inst, &volt);
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*pvolt = volt;
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if (ret)
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return ret;
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return nvkm_voltgpio_init(volt);
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}
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