linux_kernel/drivers/clk/qcom/common.h

/*
 * Copyright (c) 2014, The Linux Foundation. All rights reserved.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#ifndef __QCOM_CLK_COMMON_H__
#define __QCOM_CLK_COMMON_H__

struct platform_device;
struct regmap_config;
struct clk_regmap;
struct qcom_reset_map;
struct regmap;
struct freq_tbl;
struct clk_hw;

#define PLL_LOCK_COUNT_SHIFT	8
#define PLL_LOCK_COUNT_MASK	0x3f
#define PLL_BIAS_COUNT_SHIFT	14
#define PLL_BIAS_COUNT_MASK	0x3f
#define PLL_VOTE_FSM_ENA	BIT(20)
#define PLL_VOTE_FSM_RESET	BIT(21)

struct qcom_cc_desc {
	const struct regmap_config *config;
	struct clk_regmap **clks;
	size_t num_clks;
	const struct qcom_reset_map *resets;
	size_t num_resets;
	struct gdsc **gdscs;
	size_t num_gdscs;
};

/**
 * struct parent_map - map table for source select configuration values
 * @src: source
 * @cfg: configuration value
 */
struct parent_map {
	u8 src;
	u8 cfg;
};

extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f,
					     unsigned long rate);
extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,
						   unsigned long rate);
extern void
qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
			       u8 src);

extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
				      const char *name, unsigned long rate);
extern int qcom_cc_register_sleep_clk(struct device *dev);

extern struct regmap *qcom_cc_map(struct platform_device *pdev,
				  const struct qcom_cc_desc *desc);
extern int qcom_cc_really_probe(struct platform_device *pdev,
				const struct qcom_cc_desc *desc,
				struct regmap *regmap);
extern int qcom_cc_probe(struct platform_device *pdev,
			 const struct qcom_cc_desc *desc);

#endif