arch/arm/mach-pxa/clock.h

   1 #include <linux/list.h>
   2
   3 struct clk;
   4
   5 struct clkops {
   6         void                    (*enable)(struct clk *);
   7         void                    (*disable)(struct clk *);
   8         unsigned long           (*getrate)(struct clk *);
   9 };
  10
  11 struct clk {
  12         struct list_head        node;
  13         const char              *name;
  14         struct device           *dev;
  15         const struct clkops     *ops;
  16         unsigned long           rate;
  17         unsigned int            cken;
  18         unsigned int            delay;
  19         unsigned int            enabled;
  20         struct clk              *other;
  21 };
  22
  23 #define INIT_CKEN(_name, _cken, _rate, _delay, _dev)    \
  24         {                                               \
  25                 .name   = _name,                        \
  26                 .dev    = _dev,                         \
  27                 .ops    = &clk_cken_ops,                \
  28                 .rate   = _rate,                        \
  29                 .cken   = CKEN_##_cken,                 \
  30                 .delay  = _delay,                       \
  31         }
  32
  33 #define INIT_CK(_name, _cken, _ops, _dev)               \
  34         {                                               \
  35                 .name   = _name,                        \
  36                 .dev    = _dev,                         \
  37                 .ops    = _ops,                         \
  38                 .cken   = CKEN_##_cken,                 \
  39         }
  40
  41 /*
  42  * This is a placeholder to alias one clock device+name pair
  43  * to another struct clk.
  44  */
  45 #define INIT_CKOTHER(_name, _other, _dev)               \
  46         {                                               \
  47                 .name   = _name,                        \
  48                 .dev    = _dev,                         \
  49                 .other  = _other,                       \
  50         }
  51
  52 #define INIT_CLK(_name, _ops, _rate, _delay, _dev)      \
  53         {                                               \
  54                 .name   = _name,                        \
  55                 .dev    = _dev,                         \
  56                 .ops    = _ops,                         \
  57                 .rate   = _rate,                        \
  58                 .delay  = _delay,                       \
  59         }
  60
  61 extern const struct clkops clk_cken_ops;
  62
  63 void clk_cken_enable(struct clk *clk);
  64 void clk_cken_disable(struct clk *clk);
  65
  66 #ifdef CONFIG_PXA3xx
  67 #define PXA3xx_CKEN(_name, _cken, _rate, _delay, _dev)  \
  68         {                                               \
  69                 .name   = _name,                        \
  70                 .dev    = _dev,                         \
  71                 .ops    = &clk_pxa3xx_cken_ops,         \
  72                 .rate   = _rate,                        \
  73                 .cken   = CKEN_##_cken,                 \
  74                 .delay  = _delay,                       \
  75         }
  76
  77 #define PXA3xx_CK(_name, _cken, _ops, _dev)             \
  78         {                                               \
  79                 .name   = _name,                        \
  80                 .dev    = _dev,                         \
  81                 .ops    = _ops,                         \
  82                 .cken   = CKEN_##_cken,                 \
  83         }
  84
  85 extern const struct clkops clk_pxa3xx_cken_ops;
  86 extern void clk_pxa3xx_cken_enable(struct clk *);
  87 extern void clk_pxa3xx_cken_disable(struct clk *);
  88 #endif
  89
  90 void clks_register(struct clk *clks, size_t num);
  91 int clk_add_alias(char *alias, struct device *alias_dev, char *id,
  92         struct device *dev);
  93