drivers/clk/visconti/pll.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2021 TOSHIBA CORPORATION
   4  * Copyright (c) 2021 Toshiba Electronic Devices & Storage Corporation
   5  *
   6  * Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
   7  */
   8
   9 #ifndef _VISCONTI_PLL_H_
  10 #define _VISCONTI_PLL_H_
  11
  12 #include <linux/clk-provider.h>
  13 #include <linux/regmap.h>
  14 #include <linux/spinlock.h>
  15
  16 struct visconti_pll_provider {
  17         void __iomem *reg_base;
  18         struct device_node *node;
  19
  20         /* Must be last */
  21         struct clk_hw_onecell_data clk_data;
  22 };
  23
  24 #define VISCONTI_PLL_RATE(_rate, _dacen, _dsmen, \
  25         _refdiv, _intin, _fracin, _postdiv1, _postdiv2) \
  26 {                               \
  27         .rate = _rate,          \
  28         .dacen = _dacen,        \
  29         .dsmen = _dsmen,        \
  30         .refdiv = _refdiv,      \
  31         .intin = _intin,        \
  32         .fracin = _fracin,      \
  33         .postdiv1 = _postdiv1,  \
  34         .postdiv2 = _postdiv2   \
  35 }
  36
  37 struct visconti_pll_rate_table {
  38         unsigned long rate;
  39         unsigned int dacen;
  40         unsigned int dsmen;
  41         unsigned int refdiv;
  42         unsigned long intin;
  43         unsigned long fracin;
  44         unsigned int postdiv1;
  45         unsigned int postdiv2;
  46 };
  47
  48 struct visconti_pll_info {
  49         unsigned int id;
  50         const char *name;
  51         const char *parent;
  52         unsigned long base_reg;
  53         const struct visconti_pll_rate_table *rate_table;
  54 };
  55
  56 struct visconti_pll_provider * __init visconti_init_pll(struct device_node *np,
  57                                                         void __iomem *base,
  58                                                         unsigned long nr_plls);
  59 void visconti_register_plls(struct visconti_pll_provider *ctx,
  60                             const struct visconti_pll_info *list,
  61                             unsigned int nr_plls, spinlock_t *lock);
  62
  63 #endif /* _VISCONTI_PLL_H_ */