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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /include/linux/gpio/driver.h
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'include/linux/gpio/driver.h')
-rw-r--r--include/linux/gpio/driver.h37
1 files changed, 32 insertions, 5 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index c8393cd4d..1aed31c5f 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -6,6 +6,7 @@
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irqdomain.h>
+#include <linux/lockdep.h>
#include <linux/pinctrl/pinctrl.h>
struct device;
@@ -64,6 +65,17 @@ struct seq_file;
* registers.
* @irq_not_threaded: flag must be set if @can_sleep is set but the
* IRQs don't need to be threaded
+ * @irqchip: GPIO IRQ chip impl, provided by GPIO driver
+ * @irqdomain: Interrupt translation domain; responsible for mapping
+ * between GPIO hwirq number and linux irq number
+ * @irq_base: first linux IRQ number assigned to GPIO IRQ chip (deprecated)
+ * @irq_handler: the irq handler to use (often a predefined irq core function)
+ * for GPIO IRQs, provided by GPIO driver
+ * @irq_default_type: default IRQ triggering type applied during GPIO driver
+ * initialization, provided by GPIO driver
+ * @irq_parent: GPIO IRQ chip parent/bank linux irq number,
+ * provided by GPIO driver
+ * @lock_key: per GPIO IRQ chip lockdep class
*
* A gpio_chip can help platforms abstract various sources of GPIOs so
* they can all be accessed through a common programing interface.
@@ -126,6 +138,7 @@ struct gpio_chip {
irq_flow_handler_t irq_handler;
unsigned int irq_default_type;
int irq_parent;
+ struct lock_class_key *lock_key;
#endif
#if defined(CONFIG_OF_GPIO)
@@ -171,11 +184,25 @@ void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
int parent_irq,
irq_flow_handler_t parent_handler);
-int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
- struct irq_chip *irqchip,
- unsigned int first_irq,
- irq_flow_handler_t handler,
- unsigned int type);
+int _gpiochip_irqchip_add(struct gpio_chip *gpiochip,
+ struct irq_chip *irqchip,
+ unsigned int first_irq,
+ irq_flow_handler_t handler,
+ unsigned int type,
+ struct lock_class_key *lock_key);
+
+#ifdef CONFIG_LOCKDEP
+#define gpiochip_irqchip_add(...) \
+( \
+ ({ \
+ static struct lock_class_key _key; \
+ _gpiochip_irqchip_add(__VA_ARGS__, &_key); \
+ }) \
+)
+#else
+#define gpiochip_irqchip_add(...) \
+ _gpiochip_irqchip_add(__VA_ARGS__, NULL)
+#endif
#endif /* CONFIG_GPIOLIB_IRQCHIP */