err.no Git - linux-2.6/blob - arch/arm/mach-pxa/clock.h

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