arch/h8300/kernel/clk.c

   1 /*
   2  * linux/arch/h8300/kernel/clk.c
   3  *
   4  * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
   5  */
   6
   7 #include <linux/clk.h>
   8 #include <linux/module.h>
   9 #include <linux/compiler.h>
  10 #include <linux/clkdev.h>
  11 #include <asm/clk.h>
  12
  13 unsigned long clk_get_rate(struct clk *clk)
  14 {
  15         return clk->parent->rate;
  16 }
  17 EXPORT_SYMBOL(clk_get_rate)
  18
  19 int clk_enable(struct clk *clk)
  20 {
  21         return 0;
  22 }
  23 EXPORT_SYMBOL(clk_enable)
  24
  25 void clk_disable(struct clk *clk)
  26 {
  27 }
  28 EXPORT_SYMBOL(clk_disable)
  29
  30 static struct clk master_clk;
  31
  32 static struct clk peripheral_clk = {
  33         .parent = &master_clk,
  34 };
  35
  36 static struct clk_lookup lookups[] = {
  37         {
  38                 .con_id = "master_clk",
  39                 .clk = &master_clk,
  40         },
  41         {
  42                 .con_id = "peripheral_clk",
  43                 .clk = &peripheral_clk,
  44         },
  45 };
  46
  47 int __init h8300_clk_init(unsigned long hz)
  48 {
  49         master_clk.rate = hz;
  50         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
  51         return 0;
  52 }