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authorArjan van de Ven <arjan@linux.intel.com>2009-03-23 13:28:16 -0400
committerThomas Gleixner <tglx@linutronix.de>2009-03-24 07:15:23 -0400
commit935bd5b971f0df7c06d214d022cf8392e2f37952 (patch)
treea9edfeaa4621ce83d0de84f2c7b2ca0f741ede98 /kernel
parent3aa551c9b4c40018f0e261a178e3d25478dc04a9 (diff)
genirq: add support for threaded interrupts to devres
Some devices use devres_request_irq() for to install their interrupt handler. Add support for threaded interrupts to devres as well. [tglx - simplified and adapted to latest threadirq version] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/devres.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c
index 38a25b8d8bff..d06df9c41cba 100644
--- a/kernel/irq/devres.c
+++ b/kernel/irq/devres.c
@@ -26,10 +26,12 @@ static int devm_irq_match(struct device *dev, void *res, void *data)
26} 26}
27 27
28/** 28/**
29 * devm_request_irq - allocate an interrupt line for a managed device 29 * devm_request_threaded_irq - allocate an interrupt line for a managed device
30 * @dev: device to request interrupt for 30 * @dev: device to request interrupt for
31 * @irq: Interrupt line to allocate 31 * @irq: Interrupt line to allocate
32 * @handler: Function to be called when the IRQ occurs 32 * @handler: Function to be called when the IRQ occurs
33 * @thread_fn: function to be called in a threaded interrupt context. NULL
34 * for devices which handle everything in @handler
33 * @irqflags: Interrupt type flags 35 * @irqflags: Interrupt type flags
34 * @devname: An ascii name for the claiming device 36 * @devname: An ascii name for the claiming device
35 * @dev_id: A cookie passed back to the handler function 37 * @dev_id: A cookie passed back to the handler function
@@ -42,9 +44,10 @@ static int devm_irq_match(struct device *dev, void *res, void *data)
42 * If an IRQ allocated with this function needs to be freed 44 * If an IRQ allocated with this function needs to be freed
43 * separately, dev_free_irq() must be used. 45 * separately, dev_free_irq() must be used.
44 */ 46 */
45int devm_request_irq(struct device *dev, unsigned int irq, 47int devm_request_threaded_irq(struct device *dev, unsigned int irq,
46 irq_handler_t handler, unsigned long irqflags, 48 irq_handler_t handler, irq_handler_t thread_fn,
47 const char *devname, void *dev_id) 49 unsigned long irqflags, const char *devname,
50 void *dev_id)
48{ 51{
49 struct irq_devres *dr; 52 struct irq_devres *dr;
50 int rc; 53 int rc;
@@ -54,7 +57,8 @@ int devm_request_irq(struct device *dev, unsigned int irq,
54 if (!dr) 57 if (!dr)
55 return -ENOMEM; 58 return -ENOMEM;
56 59
57 rc = request_irq(irq, handler, irqflags, devname, dev_id); 60 rc = request_threaded_irq(irq, handler, thread_fn, irqflags, devname,
61 dev_id);
58 if (rc) { 62 if (rc) {
59 devres_free(dr); 63 devres_free(dr);
60 return rc; 64 return rc;
@@ -66,7 +70,7 @@ int devm_request_irq(struct device *dev, unsigned int irq,
66 70
67 return 0; 71 return 0;
68} 72}
69EXPORT_SYMBOL(devm_request_irq); 73EXPORT_SYMBOL(devm_request_threaded_irq);
70 74
71/** 75/**
72 * devm_free_irq - free an interrupt 76 * devm_free_irq - free an interrupt