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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-12-11 12:39:29 +0900
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-12-11 12:39:29 +0900
commit4d348e6e0a35cd1b40196a463f1159ae5d582770 (patch)
tree914c629a0f0ff6c3015c7afb0a4317df465c9246 /drivers/base
parentbcf86687d676fa478c71201294b296126212f06c (diff)
parent90f790d2dc96f5a61855ae65b90e30c40c893a20 (diff)
Merge remote-tracking branch 'regmap/topic/domain' into regmap-next
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/regmap/regmap-irq.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 5b6b1d8e6cc..5972ad95854 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);