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 <broonie@opensource.wolfsonmicro.com>
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@ -458,3 +458,22 @@ int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq)
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return irq_create_mapping(data->domain, irq);
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}
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EXPORT_SYMBOL_GPL(regmap_irq_get_virq);
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/**
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* regmap_irq_get_domain(): Retrieve the irq_domain for the chip
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*
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* Useful for drivers to request their own IRQs and for integration
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* with subsystems. For ease of integration NULL is accepted as a
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* domain, allowing devices to just call this even if no domain is
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* allocated.
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*
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* @data: regmap_irq controller to operate on.
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*/
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struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data)
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{
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if (data)
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return data->domain;
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else
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return NULL;
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}
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EXPORT_SYMBOL_GPL(regmap_irq_get_domain);
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@ -19,6 +19,7 @@
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struct module;
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struct device;
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struct i2c_client;
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struct irq_domain;
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struct spi_device;
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struct regmap;
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struct regmap_range_cfg;
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@ -317,6 +318,7 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
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void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);
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int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
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int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq);
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struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data);
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#else
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