mfd: wm8994: Update to fully use irq_domain

Take advantage of the new regmap irq_domain support to dynamically
allocate interrupts, using regmap_irq_get_virq() rather than irq_base
to look up the interrupts. This means that most users should not need
to specify an irq_base at all.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>

2 files changed, 6 insertions, 12 deletions

diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c
index 46b20c445ec..f1837f66975 100644
--- a/drivers/mfd/wm8994-irq.c
+++ b/drivers/mfd/wm8994-irq.c
@@ -147,12 +147,6 @@ int wm8994_irq_init(struct wm8994 *wm8994)
                 return 0;
         }
 
-        if (!wm8994->irq_base) {
-                dev_err(wm8994->dev,
-                        "No interrupt base specified, no interrupts\n");
-                return 0;
-        }
-
         ret = regmap_add_irq_chip(wm8994->regmap, wm8994->irq,
                                   IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
                                   wm8994->irq_base, &wm8994_irq_chip,
diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h
index 9eff2a351ec..6695c3ec451 100644
--- a/include/linux/mfd/wm8994/core.h
+++ b/include/linux/mfd/wm8994/core.h
@@ -17,6 +17,7 @@
 
 #include <linux/mutex.h>
 #include <linux/interrupt.h>
+#include <linux/regmap.h>
 
 enum wm8994_type {
         WM8994 = 0,
@@ -26,7 +27,6 @@ enum wm8994_type {
 
 struct regulator_dev;
 struct regulator_bulk_data;
-struct regmap;
 
 #define WM8994_NUM_GPIO_REGS 11
 #define WM8994_NUM_LDO_REGS   2
@@ -94,17 +94,17 @@ static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
                                      irq_handler_t handler, const char *name,
                                      void *data)
 {
-        if (!wm8994->irq_base)
+        if (!wm8994->irq_data)
                 return -EINVAL;
-        return request_threaded_irq(wm8994->irq_base + irq, NULL, handler,
-                                    IRQF_TRIGGER_RISING, name,
+        return request_threaded_irq(regmap_irq_get_virq(wm8994->irq_data, irq),
+                                    NULL, handler, IRQF_TRIGGER_RISING, name,
                                     data);
 }
 static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data)
 {
-        if (!wm8994->irq_base)
+        if (!wm8994->irq_data)
                 return;
-        free_irq(wm8994->irq_base + irq, data);
+        free_irq(regmap_irq_get_virq(wm8994->irq_data, irq), data);
 }
 
 int wm8994_irq_init(struct wm8994 *wm8994);