diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/clk.h | 104 |
1 files changed, 52 insertions, 52 deletions
diff --git a/include/linux/clk.h b/include/linux/clk.h index b607482ca77e..efb91604d3f6 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -228,7 +228,24 @@ int devm_clk_rate_exclusive_get(struct device *dev, struct clk *clk); */ void clk_rate_exclusive_put(struct clk *clk); -#else +/** + * clk_save_context - save clock context for poweroff + * + * Saves the context of the clock register for powerstates in which the + * contents of the registers will be lost. Occurs deep within the suspend + * code so locking is not necessary. + */ +int clk_save_context(void); + +/** + * clk_restore_context - restore clock context after poweroff + * + * This occurs with all clocks enabled. Occurs deep within the resume code + * so locking is not necessary. + */ +void clk_restore_context(void); + +#else /* !CONFIG_COMMON_CLK */ static inline int clk_notifier_register(struct clk *clk, struct notifier_block *nb) @@ -293,7 +310,14 @@ static inline int devm_clk_rate_exclusive_get(struct device *dev, struct clk *cl static inline void clk_rate_exclusive_put(struct clk *clk) {} -#endif +static inline int clk_save_context(void) +{ + return 0; +} + +static inline void clk_restore_context(void) {} + +#endif /* !CONFIG_COMMON_CLK */ #ifdef CONFIG_HAVE_CLK_PREPARE /** @@ -305,8 +329,21 @@ static inline void clk_rate_exclusive_put(struct clk *clk) {} * Must not be called from within atomic context. */ int clk_prepare(struct clk *clk); + +/** + * clk_unprepare - undo preparation of a clock source + * @clk: clock source + * + * This undoes a previously prepared clock. The caller must balance + * the number of prepare and unprepare calls. + * + * Must not be called from within atomic context. + */ +void clk_unprepare(struct clk *clk); + int __must_check clk_bulk_prepare(int num_clks, const struct clk_bulk_data *clks); +void clk_bulk_unprepare(int num_clks, const struct clk_bulk_data *clks); /** * clk_is_enabled_when_prepared - indicate if preparing a clock also enables it. @@ -324,49 +361,36 @@ int __must_check clk_bulk_prepare(int num_clks, * to be right. */ bool clk_is_enabled_when_prepared(struct clk *clk); -#else +#else /* !CONFIG_HAVE_CLK_PREPARE */ static inline int clk_prepare(struct clk *clk) { might_sleep(); return 0; } -static inline int __must_check -clk_bulk_prepare(int num_clks, const struct clk_bulk_data *clks) +static inline void clk_unprepare(struct clk *clk) { might_sleep(); - return 0; } -static inline bool clk_is_enabled_when_prepared(struct clk *clk) -{ - return false; -} -#endif - -/** - * clk_unprepare - undo preparation of a clock source - * @clk: clock source - * - * This undoes a previously prepared clock. The caller must balance - * the number of prepare and unprepare calls. - * - * Must not be called from within atomic context. - */ -#ifdef CONFIG_HAVE_CLK_PREPARE -void clk_unprepare(struct clk *clk); -void clk_bulk_unprepare(int num_clks, const struct clk_bulk_data *clks); -#else -static inline void clk_unprepare(struct clk *clk) +static inline int __must_check +clk_bulk_prepare(int num_clks, const struct clk_bulk_data *clks) { might_sleep(); + return 0; } + static inline void clk_bulk_unprepare(int num_clks, const struct clk_bulk_data *clks) { might_sleep(); } -#endif + +static inline bool clk_is_enabled_when_prepared(struct clk *clk) +{ + return false; +} +#endif /* !CONFIG_HAVE_CLK_PREPARE */ #ifdef CONFIG_HAVE_CLK /** @@ -933,23 +957,6 @@ struct clk *clk_get_parent(struct clk *clk); */ struct clk *clk_get_sys(const char *dev_id, const char *con_id); -/** - * clk_save_context - save clock context for poweroff - * - * Saves the context of the clock register for powerstates in which the - * contents of the registers will be lost. Occurs deep within the suspend - * code so locking is not necessary. - */ -int clk_save_context(void); - -/** - * clk_restore_context - restore clock context after poweroff - * - * This occurs with all clocks enabled. Occurs deep within the resume code - * so locking is not necessary. - */ -void clk_restore_context(void); - #else /* !CONFIG_HAVE_CLK */ static inline struct clk *clk_get(struct device *dev, const char *id) @@ -1129,14 +1136,7 @@ static inline struct clk *clk_get_sys(const char *dev_id, const char *con_id) return NULL; } -static inline int clk_save_context(void) -{ - return 0; -} - -static inline void clk_restore_context(void) {} - -#endif +#endif /* !CONFIG_HAVE_CLK */ /* clk_prepare_enable helps cases using clk_enable in non-atomic context. */ static inline int clk_prepare_enable(struct clk *clk) |