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regmap: Add irq_base accessor to regmap_irq 

Allows devices to discover their own interrupt without having to remember
it themselves.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2011-12-05 16:10:15 +00:00
parent d23511f959
commit 209a600623
2 changed files with 14 additions and 0 deletions
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13
drivers/base/regmap/regmap-irq.c
View File

@ -287,3 +287,16 @@ void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *d)
kfree(d);
}
EXPORT_SYMBOL_GPL(regmap_del_irq_chip);
/**
* regmap_irq_chip_get_base(): Retrieve interrupt base for a regmap IRQ chip
*
* Useful for drivers to request their own IRQs.
*
* @data: regmap_irq controller to operate on.
*/
int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data)
{
return data->irq_base;
}
EXPORT_SYMBOL_GPL(regmap_irq_chip_get_base);

1
include/linux/regmap.h
View File

@ -190,5 +190,6 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
int irq_base, struct regmap_irq_chip *chip,
struct regmap_irq_chip_data **data);
void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);
int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
#endif