linux/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv50.c

/*
 * 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 "nv50.h"
#include "pll.h"
#include "seq.h"

#include <subdev/bios.h>
#include <subdev/bios/pll.h>

static u32
read_div(struct nv50_clk *clk)
{ … }

static u32
read_pll_src(struct nv50_clk *clk, u32 base)
{ … }

static u32
read_pll_ref(struct nv50_clk *clk, u32 base)
{ … }

static u32
read_pll(struct nv50_clk *clk, u32 base)
{ … }

int
nv50_clk_read(struct nvkm_clk *base, enum nv_clk_src src)
{ … }

static u32
calc_pll(struct nv50_clk *clk, u32 reg, u32 idx, int *N, int *M, int *P)
{ … }

static inline u32
calc_div(u32 src, u32 target, int *div)
{ … }

static inline u32
clk_same(u32 a, u32 b)
{ … }

int
nv50_clk_calc(struct nvkm_clk *base, struct nvkm_cstate *cstate)
{ … }

int
nv50_clk_prog(struct nvkm_clk *base)
{ … }

void
nv50_clk_tidy(struct nvkm_clk *base)
{ … }

int
nv50_clk_new_(const struct nvkm_clk_func *func, struct nvkm_device *device,
	      enum nvkm_subdev_type type, int inst, bool allow_reclock, struct nvkm_clk **pclk)
{ … }

static const struct nvkm_clk_func
nv50_clk = …;

int
nv50_clk_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
	     struct nvkm_clk **pclk)
{ … }