Commit cc0fa84a authored by Ben Collins's avatar Ben Collins Committed by Linus Torvalds

[PATCH] powerpc: enable irq's for platform functions.

Make the platform function interrupt functions actually work.  Calls
irq_enable() for the first in the list, and irq_disable() for the last.

Added *func to struct irq_client so the the user can pass just that to
pmf_unregister_irq_client().
Signed-off-by: default avatarBen Collins <bcollins@ubuntu.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent b62735d9
...@@ -862,21 +862,28 @@ int pmf_register_irq_client(struct device_node *target, ...@@ -862,21 +862,28 @@ int pmf_register_irq_client(struct device_node *target,
spin_unlock_irqrestore(&pmf_lock, flags); spin_unlock_irqrestore(&pmf_lock, flags);
return -ENODEV; return -ENODEV;
} }
if (list_empty(&func->irq_clients))
func->dev->handlers->irq_enable(func);
list_add(&client->link, &func->irq_clients); list_add(&client->link, &func->irq_clients);
client->func = func;
spin_unlock_irqrestore(&pmf_lock, flags); spin_unlock_irqrestore(&pmf_lock, flags);
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(pmf_register_irq_client); EXPORT_SYMBOL_GPL(pmf_register_irq_client);
void pmf_unregister_irq_client(struct device_node *np, void pmf_unregister_irq_client(struct pmf_irq_client *client)
const char *name,
struct pmf_irq_client *client)
{ {
struct pmf_function *func = client->func;
unsigned long flags; unsigned long flags;
BUG_ON(func == NULL);
spin_lock_irqsave(&pmf_lock, flags); spin_lock_irqsave(&pmf_lock, flags);
client->func = NULL;
list_del(&client->link); list_del(&client->link);
if (list_empty(&func->irq_clients))
func->dev->handlers->irq_disable(func);
spin_unlock_irqrestore(&pmf_lock, flags); spin_unlock_irqrestore(&pmf_lock, flags);
} }
EXPORT_SYMBOL_GPL(pmf_unregister_irq_client); EXPORT_SYMBOL_GPL(pmf_unregister_irq_client);
......
...@@ -167,6 +167,7 @@ struct pmf_irq_client { ...@@ -167,6 +167,7 @@ struct pmf_irq_client {
void *data; void *data;
struct module *owner; struct module *owner;
struct list_head link; struct list_head link;
struct pmf_function *func;
}; };
...@@ -187,9 +188,7 @@ extern int pmf_register_irq_client(struct device_node *np, ...@@ -187,9 +188,7 @@ extern int pmf_register_irq_client(struct device_node *np,
const char *name, const char *name,
struct pmf_irq_client *client); struct pmf_irq_client *client);
extern void pmf_unregister_irq_client(struct device_node *np, extern void pmf_unregister_irq_client(struct pmf_irq_client *client);
const char *name,
struct pmf_irq_client *client);
/* /*
* Called by the handlers when an irq happens * Called by the handlers when an irq happens
......
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