drivers/clk/qcom/common.h

Source file repositories/reference/linux-study-clean/drivers/clk/qcom/common.h

File Facts

System
Linux kernel
Corpus path
drivers/clk/qcom/common.h
Extension
.h
Size
2674 bytes
Lines
93
Domain
Driver Families
Bucket
drivers/clk
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct qcom_icc_hws_data {
	int master_id;
	int slave_id;
	int clk_id;
};

struct qcom_cc_driver_data {
	struct clk_alpha_pll **alpha_plls;
	size_t num_alpha_plls;
	const u32 *clk_cbcrs;
	size_t num_clk_cbcrs;
	const struct clk_rcg_dfs_data *dfs_rcgs;
	size_t num_dfs_rcgs;
	void (*clk_regs_configure)(struct device *dev, struct regmap *regmap);
};

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 clk_hw **clk_hws;
	size_t num_clk_hws;
	const struct qcom_icc_hws_data *icc_hws;
	size_t num_icc_hws;
	unsigned int icc_first_node_id;
	bool use_rpm;
	const struct qcom_cc_driver_data *driver_data;
};

/**
 * 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 const struct freq_multi_tbl *qcom_find_freq_multi(const struct freq_multi_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_find_cfg_index(struct clk_hw *hw, const struct parent_map *map,
			       u8 cfg);

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 device *dev,
				const struct qcom_cc_desc *desc,
				struct regmap *regmap);
extern int qcom_cc_probe(struct platform_device *pdev,
			 const struct qcom_cc_desc *desc);
extern int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
				  const struct qcom_cc_desc *desc);

#endif

Annotation

Implementation Notes