From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 5 Dec 2011 16:10:15 +0000 (+0000)
Subject: regmap: Add irq_base accessor to regmap_irq
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=209a600623cf13a8168b2f6b83643db7825abb9a;p=linux-edison.git

regmap: Add irq_base accessor to regmap_irq

Allows devices to discover their own interrupt without having to remember
it themselves.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 6b8a74c3ed1..428836fc583 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -287,3 +287,16 @@ void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *d)
 	kfree(d);
 }
 EXPORT_SYMBOL_GPL(regmap_del_irq_chip);
+
+/**
+ * regmap_irq_chip_get_base(): Retrieve interrupt base for a regmap IRQ chip
+ *
+ * Useful for drivers to request their own IRQs.
+ *
+ * @data: regmap_irq controller to operate on.
+ */
+int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data)
+{
+	return data->irq_base;
+}
+EXPORT_SYMBOL_GPL(regmap_irq_chip_get_base);
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index bd54cecdfdf..e7e8953e8c2 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -190,5 +190,6 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
 			int irq_base, struct regmap_irq_chip *chip,
 			struct regmap_irq_chip_data **data);
 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);
 
 #endif