/* * 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, int index, struct nvkm_clk **pclk) { int ret = nvkm_clk_new_(&nv04_clk, device, index, false, pclk); if (ret == 0) { (*pclk)->pll_calc = nv04_clk_pll_calc; (*pclk)->pll_prog = nv04_clk_pll_prog; } return ret; }