clk/qcom/common.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /* Copyright (c) 2014, The Linux Foundation. All rights reserved. */
0003
0004 #ifndef __QCOM_CLK_COMMON_H__
0005 #define __QCOM_CLK_COMMON_H__
0006
0007 struct platform_device;
0008 struct regmap_config;
0009 struct clk_regmap;
0010 struct qcom_reset_map;
0011 struct regmap;
0012 struct freq_tbl;
0013 struct clk_hw;
0014
0015 #define PLL_LOCK_COUNT_SHIFT    8
0016 #define PLL_LOCK_COUNT_MASK 0x3f
0017 #define PLL_BIAS_COUNT_SHIFT    14
0018 #define PLL_BIAS_COUNT_MASK 0x3f
0019 #define PLL_VOTE_FSM_ENA    BIT(20)
0020 #define PLL_VOTE_FSM_RESET  BIT(21)
0021
0022 struct qcom_cc_desc {
0023     const struct regmap_config *config;
0024     struct clk_regmap **clks;
0025     size_t num_clks;
0026     const struct qcom_reset_map *resets;
0027     size_t num_resets;
0028     struct gdsc **gdscs;
0029     size_t num_gdscs;
0030     struct clk_hw **clk_hws;
0031     size_t num_clk_hws;
0032 };
0033
0034 /**
0035  * struct parent_map - map table for source select configuration values
0036  * @src: source
0037  * @cfg: configuration value
0038  */
0039 struct parent_map {
0040     u8 src;
0041     u8 cfg;
0042 };
0043
0044 extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
0045                          unsigned long rate);
0046 extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
0047                            unsigned long rate);
0048 extern void
0049 qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
0050 extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
0051                    u8 src);
0052 extern int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map,
0053                    u8 cfg);
0054
0055 extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
0056                       const char *name, unsigned long rate);
0057 extern int qcom_cc_register_sleep_clk(struct device *dev);
0058
0059 extern struct regmap *qcom_cc_map(struct platform_device *pdev,
0060                   const struct qcom_cc_desc *desc);
0061 extern int qcom_cc_really_probe(struct platform_device *pdev,
0062                 const struct qcom_cc_desc *desc,
0063                 struct regmap *regmap);
0064 extern int qcom_cc_probe(struct platform_device *pdev,
0065              const struct qcom_cc_desc *desc);
0066 extern int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
0067                   const struct qcom_cc_desc *desc);
0068
0069 #endif