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
 7struct platform_device;
 8struct regmap_config;
 9struct clk_regmap;
10struct qcom_reset_map;
11struct regmap;
12struct freq_tbl;
13struct 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
22struct qcom_icc_hws_data {
23	int master_id;
24	int slave_id;
25	int clk_id;
26};
27
28struct qcom_cc_driver_data {
29	struct clk_alpha_pll **alpha_plls;
30	size_t num_alpha_plls;
31	u32 *clk_cbcrs;
32	size_t num_clk_cbcrs;
33	const struct clk_rcg_dfs_data *dfs_rcgs;
34	size_t num_dfs_rcgs;
35	void (*clk_regs_configure)(struct device *dev, struct regmap *regmap);
36};
37
38struct qcom_cc_desc {
39	const struct regmap_config *config;
40	struct clk_regmap **clks;
41	size_t num_clks;
42	const struct qcom_reset_map *resets;
43	size_t num_resets;
44	struct gdsc **gdscs;
45	size_t num_gdscs;
46	struct clk_hw **clk_hws;
47	size_t num_clk_hws;
48	const struct qcom_icc_hws_data *icc_hws;
49	size_t num_icc_hws;
50	unsigned int icc_first_node_id;
51	bool use_rpm;
52	struct qcom_cc_driver_data *driver_data;
53};
54
55/**
56 * struct parent_map - map table for source select configuration values
57 * @src: source
58 * @cfg: configuration value
59 */
60struct parent_map {
61	u8 src;
62	u8 cfg;
63};
64
65extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
66					     unsigned long rate);
67extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
68						   unsigned long rate);
69extern const struct freq_multi_tbl *qcom_find_freq_multi(const struct freq_multi_tbl *f,
70							 unsigned long rate);
71extern void
72qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
73extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
74			       u8 src);
75extern int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map,
76			       u8 cfg);
77
78extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
79				      const char *name, unsigned long rate);
80extern int qcom_cc_register_sleep_clk(struct device *dev);
81
82extern struct regmap *qcom_cc_map(struct platform_device *pdev,
83				  const struct qcom_cc_desc *desc);
84extern int qcom_cc_really_probe(struct device *dev,
85				const struct qcom_cc_desc *desc,
86				struct regmap *regmap);
87extern int qcom_cc_probe(struct platform_device *pdev,
88			 const struct qcom_cc_desc *desc);
89extern int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
90				  const struct qcom_cc_desc *desc);
91
92#endif