mfd: da9052: Fix genirq abuse

Rather than using the pointer passed back by the regmap API (or complaining
because that wasn't actually being set) the da9052 driver was having some
fun and games peering through genirq and regmap internals. Fix the driver
to use the API as expected.

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

2 files changed, 4 insertions, 5 deletions

diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c
index 7ff313fe9fb1..7776aff46269 100644
--- a/drivers/mfd/da9052-core.c
+++ b/drivers/mfd/da9052-core.c
@@ -659,12 +659,11 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
         ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq,
                                   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
                                   da9052->irq_base, &da9052_regmap_irq_chip,
-                                  NULL);
+                                  &da9052->irq_data);
         if (ret < 0)
                 goto regmap_err;
 
-        desc = irq_to_desc(da9052->chip_irq);
-        da9052->irq_base = regmap_irq_chip_get_base(desc->action->dev_id);
+        da9052->irq_base = regmap_irq_chip_get_base(da9052->irq_data);
 
         ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
                               ARRAY_SIZE(da9052_subdev_info), NULL, 0);
@@ -681,8 +680,7 @@ regmap_err:
 
 void da9052_device_exit(struct da9052 *da9052)
 {
-        regmap_del_irq_chip(da9052->chip_irq,
-                            irq_get_irq_data(da9052->irq_base)->chip_data);
+        regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
         mfd_remove_devices(da9052->dev);
 }
 
diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h
index 7ffbd6e9e7fc..8313cd9658e3 100644
--- a/include/linux/mfd/da9052/da9052.h
+++ b/include/linux/mfd/da9052/da9052.h
@@ -80,6 +80,7 @@ struct da9052 {
         struct regmap *regmap;
 
         int irq_base;
+        struct regmap_irq_chip_data *irq_data;
         u8 chip_id;
 
         int chip_irq;