xref: /openbmc/linux/drivers/clk/qcom/common.h (revision 68198dca)
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
64