diff options
author | Arnd Bergmann <arnd@arndb.de> | 2013-05-06 17:43:45 -0400 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2013-05-06 17:43:45 -0400 |
commit | 442a33ebce9e02a2dd6662f16c9f2aad834d0115 (patch) | |
tree | ca8654a286f61da917318645cab9e061095ecdba /include/linux/clk-provider.h | |
parent | a94d236dc355f374857ee4e6e78b7dec8a0f29e3 (diff) | |
parent | f31c2f1c68aff83277eddc6798adf3438e9c680a (diff) |
Merge branch 'late/clksrc' into late/cleanup
There is no reason to keep the clksrc cleanups separate from the
other cleanups, and this resolves some merge conflicts.
Conflicts:
arch/arm/mach-spear/spear13xx.c
drivers/irqchip/Makefile
Diffstat (limited to 'include/linux/clk-provider.h')
-rw-r--r-- | include/linux/clk-provider.h | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 7f197d7addb0..1f0352802794 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h | |||
@@ -45,6 +45,14 @@ struct clk_hw; | |||
45 | * undo any work done in the @prepare callback. Called with | 45 | * undo any work done in the @prepare callback. Called with |
46 | * prepare_lock held. | 46 | * prepare_lock held. |
47 | * | 47 | * |
48 | * @is_prepared: Queries the hardware to determine if the clock is prepared. | ||
49 | * This function is allowed to sleep. Optional, if this op is not | ||
50 | * set then the prepare count will be used. | ||
51 | * | ||
52 | * @unprepare_unused: Unprepare the clock atomically. Only called from | ||
53 | * clk_disable_unused for prepare clocks with special needs. | ||
54 | * Called with prepare mutex held. This function may sleep. | ||
55 | * | ||
48 | * @enable: Enable the clock atomically. This must not return until the | 56 | * @enable: Enable the clock atomically. This must not return until the |
49 | * clock is generating a valid clock signal, usable by consumer | 57 | * clock is generating a valid clock signal, usable by consumer |
50 | * devices. Called with enable_lock held. This function must not | 58 | * devices. Called with enable_lock held. This function must not |
@@ -108,6 +116,8 @@ struct clk_hw; | |||
108 | struct clk_ops { | 116 | struct clk_ops { |
109 | int (*prepare)(struct clk_hw *hw); | 117 | int (*prepare)(struct clk_hw *hw); |
110 | void (*unprepare)(struct clk_hw *hw); | 118 | void (*unprepare)(struct clk_hw *hw); |
119 | int (*is_prepared)(struct clk_hw *hw); | ||
120 | void (*unprepare_unused)(struct clk_hw *hw); | ||
111 | int (*enable)(struct clk_hw *hw); | 121 | int (*enable)(struct clk_hw *hw); |
112 | void (*disable)(struct clk_hw *hw); | 122 | void (*disable)(struct clk_hw *hw); |
113 | int (*is_enabled)(struct clk_hw *hw); | 123 | int (*is_enabled)(struct clk_hw *hw); |
@@ -287,8 +297,9 @@ struct clk *clk_register_divider_table(struct device *dev, const char *name, | |||
287 | struct clk_mux { | 297 | struct clk_mux { |
288 | struct clk_hw hw; | 298 | struct clk_hw hw; |
289 | void __iomem *reg; | 299 | void __iomem *reg; |
300 | u32 *table; | ||
301 | u32 mask; | ||
290 | u8 shift; | 302 | u8 shift; |
291 | u8 width; | ||
292 | u8 flags; | 303 | u8 flags; |
293 | spinlock_t *lock; | 304 | spinlock_t *lock; |
294 | }; | 305 | }; |
@@ -297,11 +308,17 @@ struct clk_mux { | |||
297 | #define CLK_MUX_INDEX_BIT BIT(1) | 308 | #define CLK_MUX_INDEX_BIT BIT(1) |
298 | 309 | ||
299 | extern const struct clk_ops clk_mux_ops; | 310 | extern const struct clk_ops clk_mux_ops; |
311 | |||
300 | struct clk *clk_register_mux(struct device *dev, const char *name, | 312 | struct clk *clk_register_mux(struct device *dev, const char *name, |
301 | const char **parent_names, u8 num_parents, unsigned long flags, | 313 | const char **parent_names, u8 num_parents, unsigned long flags, |
302 | void __iomem *reg, u8 shift, u8 width, | 314 | void __iomem *reg, u8 shift, u8 width, |
303 | u8 clk_mux_flags, spinlock_t *lock); | 315 | u8 clk_mux_flags, spinlock_t *lock); |
304 | 316 | ||
317 | struct clk *clk_register_mux_table(struct device *dev, const char *name, | ||
318 | const char **parent_names, u8 num_parents, unsigned long flags, | ||
319 | void __iomem *reg, u8 shift, u32 mask, | ||
320 | u8 clk_mux_flags, u32 *table, spinlock_t *lock); | ||
321 | |||
305 | /** | 322 | /** |
306 | * struct clk_fixed_factor - fixed multiplier and divider clock | 323 | * struct clk_fixed_factor - fixed multiplier and divider clock |
307 | * | 324 | * |
@@ -325,6 +342,37 @@ struct clk *clk_register_fixed_factor(struct device *dev, const char *name, | |||
325 | const char *parent_name, unsigned long flags, | 342 | const char *parent_name, unsigned long flags, |
326 | unsigned int mult, unsigned int div); | 343 | unsigned int mult, unsigned int div); |
327 | 344 | ||
345 | /*** | ||
346 | * struct clk_composite - aggregate clock of mux, divider and gate clocks | ||
347 | * | ||
348 | * @hw: handle between common and hardware-specific interfaces | ||
349 | * @mux_hw: handle between composite and hardware-specifix mux clock | ||
350 | * @div_hw: handle between composite and hardware-specifix divider clock | ||
351 | * @gate_hw: handle between composite and hardware-specifix gate clock | ||
352 | * @mux_ops: clock ops for mux | ||
353 | * @div_ops: clock ops for divider | ||
354 | * @gate_ops: clock ops for gate | ||
355 | */ | ||
356 | struct clk_composite { | ||
357 | struct clk_hw hw; | ||
358 | struct clk_ops ops; | ||
359 | |||
360 | struct clk_hw *mux_hw; | ||
361 | struct clk_hw *div_hw; | ||
362 | struct clk_hw *gate_hw; | ||
363 | |||
364 | const struct clk_ops *mux_ops; | ||
365 | const struct clk_ops *div_ops; | ||
366 | const struct clk_ops *gate_ops; | ||
367 | }; | ||
368 | |||
369 | struct clk *clk_register_composite(struct device *dev, const char *name, | ||
370 | const char **parent_names, int num_parents, | ||
371 | struct clk_hw *mux_hw, const struct clk_ops *mux_ops, | ||
372 | struct clk_hw *div_hw, const struct clk_ops *div_ops, | ||
373 | struct clk_hw *gate_hw, const struct clk_ops *gate_ops, | ||
374 | unsigned long flags); | ||
375 | |||
328 | /** | 376 | /** |
329 | * clk_register - allocate a new clock, register it and return an opaque cookie | 377 | * clk_register - allocate a new clock, register it and return an opaque cookie |
330 | * @dev: device that is registering this clock | 378 | * @dev: device that is registering this clock |
@@ -351,6 +399,7 @@ unsigned int __clk_get_enable_count(struct clk *clk); | |||
351 | unsigned int __clk_get_prepare_count(struct clk *clk); | 399 | unsigned int __clk_get_prepare_count(struct clk *clk); |
352 | unsigned long __clk_get_rate(struct clk *clk); | 400 | unsigned long __clk_get_rate(struct clk *clk); |
353 | unsigned long __clk_get_flags(struct clk *clk); | 401 | unsigned long __clk_get_flags(struct clk *clk); |
402 | bool __clk_is_prepared(struct clk *clk); | ||
354 | bool __clk_is_enabled(struct clk *clk); | 403 | bool __clk_is_enabled(struct clk *clk); |
355 | struct clk *__clk_lookup(const char *name); | 404 | struct clk *__clk_lookup(const char *name); |
356 | 405 | ||