gpiolib: Make WM831x GPIO count dynamic

This supports future devices with fewer GPIOs.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h
index 91eb493bf14c..c1bc59f6cbf2 100644
--- a/include/linux/mfd/wm831x/core.h
+++ b/include/linux/mfd/wm831x/core.h
@@ -253,6 +253,8 @@ struct wm831x {
         unsigned int irq_base;
         int irq_masks[5];
 
+        int num_gpio;
+
         struct mutex auxadc_lock;
 
         /* The WM831x has a security key blocking access to certain