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/*
* Copyright 2012 Red Hat Inc.
*
* 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: Ben Skeggs
*/
#include "priv.h"
#include "pll.h"
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
#include <subdev/devinit/nv04.h>
int
nv04_clk_pll_calc(struct nvkm_clk *clock, struct nvbios_pll *info,
int clk, struct nvkm_pll_vals *pv)
{
int N1, M1, N2, M2, P;
int ret = nv04_pll_calc(&clock->subdev, info, clk, &N1, &M1, &N2, &M2, &P);
if (ret) {
pv->refclk = info->refclk;
pv->N1 = N1;
pv->M1 = M1;
pv->N2 = N2;
pv->M2 = M2;
pv->log2P = P;
}
return ret;
}
int
nv04_clk_pll_prog(struct nvkm_clk *clk, u32 reg1, struct nvkm_pll_vals *pv)
{
struct nvkm_device *device = clk->subdev.device;
struct nvkm_devinit *devinit = device->devinit;
int cv = device->bios->version.chip;
if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 ||
cv >= 0x40) {
if (reg1 > 0x405c)
setPLL_double_highregs(devinit, reg1, pv);
else
setPLL_double_lowregs(devinit, reg1, pv);
} else
setPLL_single(devinit, reg1, pv);
return 0;
}
static const struct nvkm_clk_func
nv04_clk = {
.domains = {
{ nv_clk_src_max }
}
};
int
nv04_clk_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_clk **pclk)
{
int ret = nvkm_clk_new_(&nv04_clk, device, type, inst, false, pclk);
if (ret == 0) {
(*pclk)->pll_calc = nv04_clk_pll_calc;
(*pclk)->pll_prog = nv04_clk_pll_prog;
}
return ret;
}
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