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 struct parent_map;
  24
  25 #define PLL_LOCK_COUNT_SHIFT    8
  26 #define PLL_LOCK_COUNT_MASK     0x3f
  27 #define PLL_BIAS_COUNT_SHIFT    14
  28 #define PLL_BIAS_COUNT_MASK     0x3f
  29 #define PLL_VOTE_FSM_ENA        BIT(20)
  30 #define PLL_VOTE_FSM_RESET      BIT(21)
  31
  32 struct qcom_cc_desc {
  33         const struct regmap_config *config;
  34         struct clk_regmap **clks;
  35         size_t num_clks;
  36         const struct qcom_reset_map *resets;
  37         size_t num_resets;
  38         struct gdsc **gdscs;
  39         size_t num_gdscs;
  40 };
  41
  42 extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
  43                                              unsigned long rate);
  44 extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
  45                                                    unsigned long rate);
  46 extern void
  47 qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
  48 extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
  49                                u8 src);
  50
  51 extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
  52                                       const char *name, unsigned long rate);
  53 extern int qcom_cc_register_sleep_clk(struct device *dev);
  54
  55 extern struct regmap *qcom_cc_map(struct platform_device *pdev,
  56                                   const struct qcom_cc_desc *desc);
  57 extern int qcom_cc_really_probe(struct platform_device *pdev,
  58                                 const struct qcom_cc_desc *desc,
  59                                 struct regmap *regmap);
  60 extern int qcom_cc_probe(struct platform_device *pdev,
  61                          const struct qcom_cc_desc *desc);
  62
  63 #endif