drm/nouveau/volt: add GM20B driver
Add basic GM20B volt driver that reuses the GK20A logic. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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@ -20,4 +20,5 @@ int nvkm_volt_set_id(struct nvkm_volt *, u8 id, int condition);
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int nv40_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
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int gk104_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
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int gk20a_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
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int gm20b_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
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#endif
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@ -2093,6 +2093,7 @@ nv12b_chipset = {
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.secboot = gm20b_secboot_new,
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.timer = gk20a_timer_new,
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.ce[2] = gm200_ce_new,
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.volt = gm20b_volt_new,
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.dma = gf119_dma_new,
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.fifo = gm20b_fifo_new,
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.gr = gm20b_gr_new,
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@ -3,3 +3,4 @@ nvkm-y += nvkm/subdev/volt/gpio.o
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nvkm-y += nvkm/subdev/volt/nv40.o
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nvkm-y += nvkm/subdev/volt/gk104.o
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nvkm-y += nvkm/subdev/volt/gk20a.o
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nvkm-y += nvkm/subdev/volt/gm20b.o
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56
drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c
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56
drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c
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@ -0,0 +1,56 @@
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/*
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* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "priv.h"
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#include "gk20a.h"
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#include <core/tegra.h>
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const struct cvb_coef gm20b_cvb_coef[] = {
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/* KHz, c0, c1, c2 */
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/* 76800 */ { 1786666, -85625, 1632 },
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/* 153600 */ { 1846729, -87525, 1632 },
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/* 230400 */ { 1910480, -89425, 1632 },
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/* 307200 */ { 1977920, -91325, 1632 },
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/* 384000 */ { 2049049, -93215, 1632 },
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/* 460800 */ { 2122872, -95095, 1632 },
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/* 537600 */ { 2201331, -96985, 1632 },
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/* 614400 */ { 2283479, -98885, 1632 },
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/* 691200 */ { 2369315, -100785, 1632 },
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/* 768000 */ { 2458841, -102685, 1632 },
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/* 844800 */ { 2550821, -104555, 1632 },
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/* 921600 */ { 2647676, -106455, 1632 },
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};
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int
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gm20b_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
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{
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struct gk20a_volt *volt;
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volt = kzalloc(sizeof(*volt), GFP_KERNEL);
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if (!volt)
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return -ENOMEM;
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*pvolt = &volt->base;
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return _gk20a_volt_ctor(device, index, gm20b_cvb_coef,
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ARRAY_SIZE(gm20b_cvb_coef), volt);
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}
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