drivers/clk/meson/clk-pll.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (c) 2019 BayLibre, SAS.
   4  * Author: Jerome Brunet <jbrunet@baylibre.com>
   5  */
   6
   7 #ifndef __MESON_CLK_PLL_H
   8 #define __MESON_CLK_PLL_H
   9
  10 #include <linux/clk-provider.h>
  11 #include <linux/regmap.h>
  12 #include "parm.h"
  13
  14 struct pll_params_table {
  15         unsigned int    m;
  16         unsigned int    n;
  17 };
  18
  19 struct pll_mult_range {
  20         unsigned int    min;
  21         unsigned int    max;
  22 };
  23
  24 #define PLL_PARAMS(_m, _n)                                              \
  25         {                                                               \
  26                 .m              = (_m),                                 \
  27                 .n              = (_n),                                 \
  28         }
  29
  30 #define CLK_MESON_PLL_ROUND_CLOSEST     BIT(0)
  31 #define CLK_MESON_PLL_NOINIT_ENABLED    BIT(1)
  32
  33 struct meson_clk_pll_data {
  34         struct parm en;
  35         struct parm m;
  36         struct parm n;
  37         struct parm frac;
  38         struct parm l;
  39         struct parm rst;
  40         struct parm current_en;
  41         struct parm l_detect;
  42         const struct reg_sequence *init_regs;
  43         unsigned int init_count;
  44         const struct pll_params_table *table;
  45         const struct pll_mult_range *range;
  46         unsigned int frac_max;
  47         u8 flags;
  48 };
  49
  50 extern const struct clk_ops meson_clk_pll_ro_ops;
  51 extern const struct clk_ops meson_clk_pll_ops;
  52 extern const struct clk_ops meson_clk_pcie_pll_ops;
  53
  54 #endif /* __MESON_CLK_PLL_H */