drivers/clk/qcom/common.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2014, The Linux Foundation. All rights reserved. */
   3
   4 #ifndef __QCOM_CLK_COMMON_H__
   5 #define __QCOM_CLK_COMMON_H__
   6
   7 struct platform_device;
   8 struct regmap_config;
   9 struct clk_regmap;
  10 struct qcom_reset_map;
  11 struct regmap;
  12 struct freq_tbl;
  13 struct clk_hw;
  14
  15 #define PLL_LOCK_COUNT_SHIFT    8
  16 #define PLL_LOCK_COUNT_MASK     0x3f
  17 #define PLL_BIAS_COUNT_SHIFT    14
  18 #define PLL_BIAS_COUNT_MASK     0x3f
  19 #define PLL_VOTE_FSM_ENA        BIT(20)
  20 #define PLL_VOTE_FSM_RESET      BIT(21)
  21
  22 struct qcom_cc_desc {
  23         const struct regmap_config *config;
  24         struct clk_regmap **clks;
  25         size_t num_clks;
  26         const struct qcom_reset_map *resets;
  27         size_t num_resets;
  28         struct gdsc **gdscs;
  29         size_t num_gdscs;
  30         struct clk_hw **clk_hws;
  31         size_t num_clk_hws;
  32 };
  33
  34 /**
  35  * struct parent_map - map table for source select configuration values
  36  * @src: source
  37  * @cfg: configuration value
  38  */
  39 struct parent_map {
  40         u8 src;
  41         u8 cfg;
  42 };
  43
  44 extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
  45                                              unsigned long rate);
  46 extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
  47                                                    unsigned long rate);
  48 extern void
  49 qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
  50 extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
  51                                u8 src);
  52
  53 extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
  54                                       const char *name, unsigned long rate);
  55 extern int qcom_cc_register_sleep_clk(struct device *dev);
  56
  57 extern struct regmap *qcom_cc_map(struct platform_device *pdev,
  58                                   const struct qcom_cc_desc *desc);
  59 extern int qcom_cc_really_probe(struct platform_device *pdev,
  60                                 const struct qcom_cc_desc *desc,
  61                                 struct regmap *regmap);
  62 extern int qcom_cc_probe(struct platform_device *pdev,
  63                          const struct qcom_cc_desc *desc);
  64 extern int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
  65                                   const struct qcom_cc_desc *desc);
  66
  67 #endif