Blame view

kernel/linux-imx6_3.14.28/arch/arm/mach-shmobile/clock.c 1.5 KB
6b13f685e   김민수   BSP 최초 추가
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
  /*
   * SH-Mobile Clock Framework
   *
   * Copyright (C) 2010  Magnus Damm
   *
   * Used together with arch/arm/common/clkdev.c and drivers/sh/clk.c.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; version 2 of the License.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   *
   */
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/sh_clk.h>
  #include <linux/export.h>
  #include <mach/clock.h>
  #include <mach/common.h>
  
  unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk)
  {
  	struct clk_ratio *p = clk->priv;
  
  	return clk->parent->rate / p->div * p->mul;
  };
  
  struct sh_clk_ops shmobile_fixed_ratio_clk_ops = {
  	.recalc	= shmobile_fixed_ratio_clk_recalc,
  };
  
  int __init shmobile_clk_init(void)
  {
  	/* Kick the child clocks.. */
  	recalculate_root_clocks();
  
  	/* Enable the necessary init clocks */
  	clk_enable_init_clocks();
  
  	return 0;
  }
  
  int __clk_get(struct clk *clk)
  {
  	return 1;
  }
  EXPORT_SYMBOL(__clk_get);
  
  void __clk_put(struct clk *clk)
  {
  }
  EXPORT_SYMBOL(__clk_put);