mfd: wm8994: Export symbols ready for built-in => modular build

We'd like to be able to build the WM8994 family as modules, but the
build will fail if the external symbols aren't exported first.

Acked-by: Charles Keepax <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/wm8994-irq.c

···
 
 	return 0;
 }
+EXPORT_SYMBOL(wm8994_irq_init);
 
 void wm8994_irq_exit(struct wm8994 *wm8994)
 {
 	regmap_del_irq_chip(wm8994->irq, wm8994->irq_data);
 }
+EXPORT_SYMBOL(wm8994_irq_exit);

drivers/mfd/wm8994-regmap.c

···
 	.volatile_reg = wm1811_volatile_register,
 	.readable_reg = wm1811_readable_register,
 };
+EXPORT_SYMBOL(wm1811_regmap_config);
 
 struct regmap_config wm8994_regmap_config = {
 	.reg_bits = 16,
···
 	.volatile_reg = wm8994_volatile_register,
 	.readable_reg = wm8994_readable_register,
 };
+EXPORT_SYMBOL(wm8994_regmap_config);
 
 struct regmap_config wm8958_regmap_config = {
 	.reg_bits = 16,
···
 	.volatile_reg = wm8958_volatile_register,
 	.readable_reg = wm8958_readable_register,
 };
+EXPORT_SYMBOL(wm8958_regmap_config);
 
 struct regmap_config wm8994_base_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 16,
 };
+EXPORT_SYMBOL(wm8994_base_regmap_config);