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