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author | 2012-08-20 21:45:05 +0100 | |
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committer | 2012-10-15 09:49:23 +0900 | |
commit | 90f790d2dc96f5a61855ae65b90e30c40c893a20 (patch) | |
tree | 5d88bc300043bf8a9925569b43f4686961bcd4c2 /drivers/base/regmap/regmap-irq.c | |
parent | Linux 3.7-rc1 (diff) | |
download | linux-90f790d2dc96f5a61855ae65b90e30c40c893a20.tar.gz linux-90f790d2dc96f5a61855ae65b90e30c40c893a20.tar.bz2 linux-90f790d2dc96f5a61855ae65b90e30c40c893a20.zip |
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>
Diffstat (limited to 'drivers/base/regmap/regmap-irq.c')
-rw-r--r-- | drivers/base/regmap/regmap-irq.c | 19 |
1 files changed, 19 insertions, 0 deletions
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); |