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_icc_hws_data {
  23         int master_id;
  24         int slave_id;
  25         int clk_id;
  26 };
  27
  28 struct qcom_cc_desc {
  29         const struct regmap_config *config;
  30         struct clk_regmap **clks;
  31         size_t num_clks;
  32         const struct qcom_reset_map *resets;
  33         size_t num_resets;
  34         struct gdsc **gdscs;
  35         size_t num_gdscs;
  36         struct clk_hw **clk_hws;
  37         size_t num_clk_hws;
  38         const struct qcom_icc_hws_data *icc_hws;
  39         size_t num_icc_hws;
  40         unsigned int icc_first_node_id;
  41 };
  42
  43 /**
  44  * struct parent_map - map table for source select configuration values
  45  * @src: source
  46  * @cfg: configuration value
  47  */
  48 struct parent_map {
  49         u8 src;
  50         u8 cfg;
  51 };
  52
  53 extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
  54                                              unsigned long rate);
  55 extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
  56                                                    unsigned long rate);
  57 extern const struct freq_multi_tbl *qcom_find_freq_multi(const struct freq_multi_tbl *f,
  58                                                          unsigned long rate);
  59 extern void
  60 qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
  61 extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
  62                                u8 src);
  63 extern int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map,
  64                                u8 cfg);
  65
  66 extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
  67                                       const char *name, unsigned long rate);
  68 extern int qcom_cc_register_sleep_clk(struct device *dev);
  69
  70 extern struct regmap *qcom_cc_map(struct platform_device *pdev,
  71                                   const struct qcom_cc_desc *desc);
  72 extern int qcom_cc_really_probe(struct device *dev,
  73                                 const struct qcom_cc_desc *desc,
  74                                 struct regmap *regmap);
  75 extern int qcom_cc_probe(struct platform_device *pdev,
  76                          const struct qcom_cc_desc *desc);
  77 extern int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
  78                                   const struct qcom_cc_desc *desc);
  79
  80 #endif