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drm/nouveau/volt: add GM20B driver

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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>
This commit is contained in:
Alexandre Courbot 2015-10-27 12:35:14 +09:00 committed by Ben Skeggs
parent 4158c9c2bf
commit 71757abf2e
4 changed files with 59 additions and 0 deletions
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1
drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
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@ -20,4 +20,5 @@ int nvkm_volt_set_id(struct nvkm_volt *, u8 id, int condition);
int nv40_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gk104_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gk20a_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gm20b_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
#endif

1
drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
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@ -2093,6 +2093,7 @@ nv12b_chipset = {
.secboot = gm20b_secboot_new,
.timer = gk20a_timer_new,
.ce[2] = gm200_ce_new,
.volt = gm20b_volt_new,
.dma = gf119_dma_new,
.fifo = gm20b_fifo_new,
.gr = gm20b_gr_new,

1
drivers/gpu/drm/nouveau/nvkm/subdev/volt/Kbuild
View File

@ -3,3 +3,4 @@ nvkm-y += nvkm/subdev/volt/gpio.o
nvkm-y += nvkm/subdev/volt/nv40.o
nvkm-y += nvkm/subdev/volt/gk104.o
nvkm-y += nvkm/subdev/volt/gk20a.o
nvkm-y += nvkm/subdev/volt/gm20b.o

56
drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c Normal file
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@ -0,0 +1,56 @@
/*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include "priv.h"
#include "gk20a.h"
#include <core/tegra.h>
const struct cvb_coef gm20b_cvb_coef[] = {
/* KHz, c0, c1, c2 */
/* 76800 */ { 1786666, -85625, 1632 },
/* 153600 */ { 1846729, -87525, 1632 },
/* 230400 */ { 1910480, -89425, 1632 },
/* 307200 */ { 1977920, -91325, 1632 },
/* 384000 */ { 2049049, -93215, 1632 },
/* 460800 */ { 2122872, -95095, 1632 },
/* 537600 */ { 2201331, -96985, 1632 },
/* 614400 */ { 2283479, -98885, 1632 },
/* 691200 */ { 2369315, -100785, 1632 },
/* 768000 */ { 2458841, -102685, 1632 },
/* 844800 */ { 2550821, -104555, 1632 },
/* 921600 */ { 2647676, -106455, 1632 },
};
int
gm20b_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
{
struct gk20a_volt *volt;
volt = kzalloc(sizeof(*volt), GFP_KERNEL);
if (!volt)
return -ENOMEM;
*pvolt = &volt->base;
return _gk20a_volt_ctor(device, index, gm20b_cvb_coef,
ARRAY_SIZE(gm20b_cvb_coef), volt);
}