diff options
author | Mark Brown <broonie@kernel.org> | 2017-04-25 16:35:35 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2017-04-25 16:35:35 +0100 |
commit | 9095bf25ea08135a5b74875dd0e3eeaddc4218a0 (patch) | |
tree | a4e6976eab0e7a5b6258281077cd5853c7e69514 /drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf100.c | |
parent | cdf4275e957c6bad3756e98942341667f1d7de7d (diff) | |
parent | c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 (diff) |
Merge tag 'v4.11-rc1' into regulator-arizona
Linux 4.11-rc1
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf100.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf100.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf100.c new file mode 100644 index 000000000000..d9ed6925ca64 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf100.c @@ -0,0 +1,70 @@ +/* + * 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, int index, struct nvkm_volt **pvolt) +{ + struct nvkm_volt *volt; + int ret; + + ret = nvkm_volt_new_(&gf100_volt, device, index, &volt); + *pvolt = volt; + if (ret) + return ret; + + return nvkm_voltgpio_init(volt); +} |