drivers/clk/sunxi/clk-factors.h

   1 #ifndef __MACH_SUNXI_CLK_FACTORS_H
   2 #define __MACH_SUNXI_CLK_FACTORS_H
   3
   4 #include <linux/clk-provider.h>
   5 #include <linux/spinlock.h>
   6
   7 #define SUNXI_FACTORS_NOT_APPLICABLE    (0)
   8
   9 struct clk_factors_config {
  10         u8 nshift;
  11         u8 nwidth;
  12         u8 kshift;
  13         u8 kwidth;
  14         u8 mshift;
  15         u8 mwidth;
  16         u8 pshift;
  17         u8 pwidth;
  18         u8 n_start;
  19 };
  20
  21 struct factors_request {
  22         unsigned long rate;
  23         unsigned long parent_rate;
  24         u8 parent_index;
  25         u8 n;
  26         u8 k;
  27         u8 m;
  28         u8 p;
  29 };
  30
  31 struct factors_data {
  32         int enable;
  33         int mux;
  34         int muxmask;
  35         const struct clk_factors_config *table;
  36         void (*getter)(struct factors_request *req);
  37         void (*recalc)(struct factors_request *req);
  38         const char *name;
  39 };
  40
  41 struct clk_factors {
  42         struct clk_hw hw;
  43         void __iomem *reg;
  44         const struct clk_factors_config *config;
  45         void (*get_factors)(struct factors_request *req);
  46         void (*recalc)(struct factors_request *req);
  47         spinlock_t *lock;
  48         /* for cleanup */
  49         struct clk_mux *mux;
  50         struct clk_gate *gate;
  51 };
  52
  53 struct clk *sunxi_factors_register(struct device_node *node,
  54                                    const struct factors_data *data,
  55                                    spinlock_t *lock,
  56                                    void __iomem *reg);
  57
  58 void sunxi_factors_unregister(struct device_node *node, struct clk *clk);
  59
  60 #endif