From 90f790d2dc96f5a61855ae65b90e30c40c893a20 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 20 Aug 2012 21:45:05 +0100 Subject: regmap: irq: Allow users to retrieve the irq_domain This is useful for integration with other subsystems, especially MFD, and provides an alternative API for users that request their own IRQs. Signed-off-by: Mark Brown --- drivers/base/regmap/regmap-irq.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'drivers') diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 5b6b1d8e6cc0..5972ad958544 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -458,3 +458,22 @@ int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq) return irq_create_mapping(data->domain, irq); } EXPORT_SYMBOL_GPL(regmap_irq_get_virq); + +/** + * regmap_irq_get_domain(): Retrieve the irq_domain for the chip + * + * Useful for drivers to request their own IRQs and for integration + * with subsystems. For ease of integration NULL is accepted as a + * domain, allowing devices to just call this even if no domain is + * allocated. + * + * @data: regmap_irq controller to operate on. + */ +struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data) +{ + if (data) + return data->domain; + else + return NULL; +} +EXPORT_SYMBOL_GPL(regmap_irq_get_domain); -- cgit v1.2.3