LXR linux/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
  16struct platform_device;
  17struct regmap_config;
  18struct clk_regmap;
  19struct qcom_reset_map;
  20struct regmap;
  21struct freq_tbl;
  22struct 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
  31struct 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 */
  46struct parent_map {
  47        u8 src;
  48        u8 cfg;
  49};
  50
  51extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
  52                                             unsigned long rate);
  53extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
  54                                                   unsigned long rate);
  55extern void
  56qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
  57extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
  58                               u8 src);
  59
  60extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
  61                                      const char *name, unsigned long rate);
  62extern int qcom_cc_register_sleep_clk(struct device *dev);
  63
  64extern struct regmap *qcom_cc_map(struct platform_device *pdev,
  65                                  const struct qcom_cc_desc *desc);
  66extern int qcom_cc_really_probe(struct platform_device *pdev,
  67                                const struct qcom_cc_desc *desc,
  68                                struct regmap *regmap);
  69extern int qcom_cc_probe(struct platform_device *pdev,
  70                         const struct qcom_cc_desc *desc);
  71
  72#endif
  73