linux/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.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
 *          Roy Spliet
 */
#define gt215_clk(p) …
#include "gt215.h"
#include "pll.h"

#include <engine/fifo.h>
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
#include <subdev/timer.h>

struct gt215_clk { … };

static u32 read_clk(struct gt215_clk *, int, bool);
static u32 read_pll(struct gt215_clk *, int, u32);

static u32
read_vco(struct gt215_clk *clk, int idx)
{ … }

static u32
read_clk(struct gt215_clk *clk, int idx, bool ignore_en)
{ … }

static u32
read_pll(struct gt215_clk *clk, int idx, u32 pll)
{ … }

static int
gt215_clk_read(struct nvkm_clk *base, enum nv_clk_src src)
{ … }

static int
gt215_clk_info(struct nvkm_clk *base, int idx, u32 khz,
	       struct gt215_clk_info *info)
{ … }

int
gt215_pll_info(struct nvkm_clk *base, int idx, u32 pll, u32 khz,
	       struct gt215_clk_info *info)
{ … }

static int
calc_clk(struct gt215_clk *clk, struct nvkm_cstate *cstate,
	 int idx, u32 pll, int dom)
{ … }

static int
calc_host(struct gt215_clk *clk, struct nvkm_cstate *cstate)
{ … }

int
gt215_clk_pre(struct nvkm_clk *clk, unsigned long *flags)
{ … }

void
gt215_clk_post(struct nvkm_clk *clk, unsigned long *flags)
{ … }

static void
disable_clk_src(struct gt215_clk *clk, u32 src)
{ … }

static void
prog_pll(struct gt215_clk *clk, int idx, u32 pll, int dom)
{ … }

static void
prog_clk(struct gt215_clk *clk, int idx, int dom)
{ … }

static void
prog_host(struct gt215_clk *clk)
{ … }

static void
prog_core(struct gt215_clk *clk, int dom)
{ … }

static int
gt215_clk_calc(struct nvkm_clk *base, struct nvkm_cstate *cstate)
{ … }

static int
gt215_clk_prog(struct nvkm_clk *base)
{ … }

static void
gt215_clk_tidy(struct nvkm_clk *base)
{ … }

static const struct nvkm_clk_func
gt215_clk = …;

int
gt215_clk_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
	      struct nvkm_clk **pclk)
{ … }