drivers/clk/qcom/common.h

   1 /*
   2  * Copyright (c) 2014, The Linux Foundation. All rights reserved.
   3  *
   4  * This software is licensed under the terms of the GNU General Public
   5  * License version 2, as published by the Free Software Foundation, and
   6  * may be copied, distributed, and modified under those terms.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13 #ifndef __QCOM_CLK_COMMON_H__
  14 #define __QCOM_CLK_COMMON_H__
  15
  16 struct platform_device;
  17 struct regmap_config;
  18 struct clk_regmap;
  19 struct qcom_reset_map;
  20 struct regmap;
  21 struct freq_tbl;
  22 struct clk_hw;
  23
  24 #define PLL_LOCK_COUNT_SHIFT    8
  25 #define PLL_LOCK_COUNT_MASK     0x3f
  26 #define PLL_BIAS_COUNT_SHIFT    14
  27 #define PLL_BIAS_COUNT_MASK     0x3f
  28 #define PLL_VOTE_FSM_ENA        BIT(20)
  29 #define PLL_VOTE_FSM_RESET      BIT(21)
  30
  31 struct qcom_cc_desc {
  32         const struct regmap_config *config;
  33         struct clk_regmap **clks;
  34         size_t num_clks;
  35         const struct qcom_reset_map *resets;
  36         size_t num_resets;
  37         struct gdsc **gdscs;
  38         size_t num_gdscs;
  39 };
  40
  41 /**
  42  * struct parent_map - map table for source select configuration values
  43  * @src: source
  44  * @cfg: configuration value
  45  */
  46 struct parent_map {
  47         u8 src;
  48         u8 cfg;
  49 };
  50
  51 extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
  52                                              unsigned long rate);
  53 extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
  54                                                    unsigned long rate);
  55 extern void
  56 qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
  57 extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
  58                                u8 src);
  59
  60 extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
  61                                       const char *name, unsigned long rate);
  62 extern int qcom_cc_register_sleep_clk(struct device *dev);
  63
  64 extern struct regmap *qcom_cc_map(struct platform_device *pdev,
  65                                   const struct qcom_cc_desc *desc);
  66 extern int qcom_cc_really_probe(struct platform_device *pdev,
  67                                 const struct qcom_cc_desc *desc,
  68                                 struct regmap *regmap);
  69 extern int qcom_cc_probe(struct platform_device *pdev,
  70                          const struct qcom_cc_desc *desc);
  71
  72 #endif