From 29a4b730e3423ee5f2a7dd09c1413ba2b1245a2c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 20 Aug 2012 21:45:05 +0100 Subject: [PATCH] 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 +++++++++++++++++++ include/linux/regmap.h | 2 ++ 2 files changed, 21 insertions(+) diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index a89734621e51..f40a41f09c28 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -400,3 +400,22 @@ 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); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 7f7e00df3adf..cb1fde1c85c2 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -19,6 +19,7 @@ struct module; struct device; struct i2c_client; +struct irq_domain; struct spi_device; struct regmap; struct regmap_range_cfg; @@ -314,6 +315,7 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, 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); int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); +struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data); #else -- 2.39.5