arch/arm/mach-imx/clk.h

   1 #ifndef __MACH_IMX_CLK_H
   2 #define __MACH_IMX_CLK_H
   3
   4 #include <linux/spinlock.h>
   5 #include <linux/clk-provider.h>
   6
   7 extern spinlock_t imx_ccm_lock;
   8
   9 struct clk *imx_clk_pllv1(const char *name, const char *parent,
  10                 void __iomem *base);
  11
  12 struct clk *imx_clk_pllv2(const char *name, const char *parent,
  13                 void __iomem *base);
  14
  15 enum imx_pllv3_type {
  16         IMX_PLLV3_GENERIC,
  17         IMX_PLLV3_SYS,
  18         IMX_PLLV3_USB,
  19         IMX_PLLV3_AV,
  20         IMX_PLLV3_ENET,
  21         IMX_PLLV3_MLB,
  22 };
  23
  24 struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
  25                 const char *parent_name, void __iomem *base, u32 div_mask);
  26
  27 struct clk *clk_register_gate2(struct device *dev, const char *name,
  28                 const char *parent_name, unsigned long flags,
  29                 void __iomem *reg, u8 bit_idx,
  30                 u8 clk_gate_flags, spinlock_t *lock);
  31
  32 static inline struct clk *imx_clk_gate2(const char *name, const char *parent,
  33                 void __iomem *reg, u8 shift)
  34 {
  35         return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
  36                         shift, 0, &imx_ccm_lock);
  37 }
  38
  39 struct clk *imx_clk_pfd(const char *name, const char *parent_name,
  40                 void __iomem *reg, u8 idx);
  41
  42 struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
  43                                  void __iomem *reg, u8 shift, u8 width,
  44                                  void __iomem *busy_reg, u8 busy_shift);
  45
  46 struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
  47                              u8 width, void __iomem *busy_reg, u8 busy_shift,
  48                              const char **parent_names, int num_parents);
  49
  50 static inline struct clk *imx_clk_fixed(const char *name, int rate)
  51 {
  52         return clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate);
  53 }
  54
  55 static inline struct clk *imx_clk_divider(const char *name, const char *parent,
  56                 void __iomem *reg, u8 shift, u8 width)
  57 {
  58         return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
  59                         reg, shift, width, 0, &imx_ccm_lock);
  60 }
  61
  62 static inline struct clk *imx_clk_divider_flags(const char *name,
  63                 const char *parent, void __iomem *reg, u8 shift, u8 width,
  64                 unsigned long flags)
  65 {
  66         return clk_register_divider(NULL, name, parent, flags,
  67                         reg, shift, width, 0, &imx_ccm_lock);
  68 }
  69
  70 static inline struct clk *imx_clk_gate(const char *name, const char *parent,
  71                 void __iomem *reg, u8 shift)
  72 {
  73         return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
  74                         shift, 0, &imx_ccm_lock);
  75 }
  76
  77 static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
  78                 u8 shift, u8 width, const char **parents, int num_parents)
  79 {
  80         return clk_register_mux(NULL, name, parents, num_parents, 0, reg, shift,
  81                         width, 0, &imx_ccm_lock);
  82 }
  83
  84 static inline struct clk *imx_clk_mux_flags(const char *name,
  85                 void __iomem *reg, u8 shift, u8 width, const char **parents,
  86                 int num_parents, unsigned long flags)
  87 {
  88         return clk_register_mux(NULL, name, parents, num_parents,
  89                         flags, reg, shift, width, 0,
  90                         &imx_ccm_lock);
  91 }
  92
  93 static inline struct clk *imx_clk_fixed_factor(const char *name,
  94                 const char *parent, unsigned int mult, unsigned int div)
  95 {
  96         return clk_register_fixed_factor(NULL, name, parent,
  97                         CLK_SET_RATE_PARENT, mult, div);
  98 }
  99
 100 #endif