aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/gpio/driver.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/gpio/driver.h')
-rw-r--r--include/linux/gpio/driver.h33
1 files changed, 21 insertions, 12 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 55e672592fa9..7258cd676df4 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -66,9 +66,10 @@ struct gpio_irq_chip {
66 /** 66 /**
67 * @lock_key: 67 * @lock_key:
68 * 68 *
69 * Per GPIO IRQ chip lockdep class. 69 * Per GPIO IRQ chip lockdep classes.
70 */ 70 */
71 struct lock_class_key *lock_key; 71 struct lock_class_key *lock_key;
72 struct lock_class_key *request_key;
72 73
73 /** 74 /**
74 * @parent_handler: 75 * @parent_handler:
@@ -323,7 +324,8 @@ extern const char *gpiochip_is_requested(struct gpio_chip *chip,
323 324
324/* add/remove chips */ 325/* add/remove chips */
325extern int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, 326extern int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
326 struct lock_class_key *lock_key); 327 struct lock_class_key *lock_key,
328 struct lock_class_key *request_key);
327 329
328/** 330/**
329 * gpiochip_add_data() - register a gpio_chip 331 * gpiochip_add_data() - register a gpio_chip
@@ -350,11 +352,13 @@ extern int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
350 */ 352 */
351#ifdef CONFIG_LOCKDEP 353#ifdef CONFIG_LOCKDEP
352#define gpiochip_add_data(chip, data) ({ \ 354#define gpiochip_add_data(chip, data) ({ \
353 static struct lock_class_key key; \ 355 static struct lock_class_key lock_key; \
354 gpiochip_add_data_with_key(chip, data, &key); \ 356 static struct lock_class_key request_key; \
357 gpiochip_add_data_with_key(chip, data, &lock_key, \
358 &request_key); \
355 }) 359 })
356#else 360#else
357#define gpiochip_add_data(chip, data) gpiochip_add_data_with_key(chip, data, NULL) 361#define gpiochip_add_data(chip, data) gpiochip_add_data_with_key(chip, data, NULL, NULL)
358#endif 362#endif
359 363
360static inline int gpiochip_add(struct gpio_chip *chip) 364static inline int gpiochip_add(struct gpio_chip *chip)
@@ -429,7 +433,8 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip,
429 irq_flow_handler_t handler, 433 irq_flow_handler_t handler,
430 unsigned int type, 434 unsigned int type,
431 bool threaded, 435 bool threaded,
432 struct lock_class_key *lock_key); 436 struct lock_class_key *lock_key,
437 struct lock_class_key *request_key);
433 438
434#ifdef CONFIG_LOCKDEP 439#ifdef CONFIG_LOCKDEP
435 440
@@ -445,10 +450,12 @@ static inline int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
445 irq_flow_handler_t handler, 450 irq_flow_handler_t handler,
446 unsigned int type) 451 unsigned int type)
447{ 452{
448 static struct lock_class_key key; 453 static struct lock_class_key lock_key;
454 static struct lock_class_key request_key;
449 455
450 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq, 456 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq,
451 handler, type, false, &key); 457 handler, type, false,
458 &lock_key, &request_key);
452} 459}
453 460
454static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip, 461static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip,
@@ -458,10 +465,12 @@ static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip,
458 unsigned int type) 465 unsigned int type)
459{ 466{
460 467
461 static struct lock_class_key key; 468 static struct lock_class_key lock_key;
469 static struct lock_class_key request_key;
462 470
463 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq, 471 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq,
464 handler, type, true, &key); 472 handler, type, true,
473 &lock_key, &request_key);
465} 474}
466#else 475#else
467static inline int gpiochip_irqchip_add(struct gpio_chip *gpiochip, 476static inline int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
@@ -471,7 +480,7 @@ static inline int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
471 unsigned int type) 480 unsigned int type)
472{ 481{
473 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq, 482 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq,
474 handler, type, false, NULL); 483 handler, type, false, NULL, NULL);
475} 484}
476 485
477static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip, 486static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip,
@@ -481,7 +490,7 @@ static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip,
481 unsigned int type) 490 unsigned int type)
482{ 491{
483 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq, 492 return gpiochip_irqchip_add_key(gpiochip, irqchip, first_irq,
484 handler, type, true, NULL); 493 handler, type, true, NULL, NULL);
485} 494}
486#endif /* CONFIG_LOCKDEP */ 495#endif /* CONFIG_LOCKDEP */
487 496