[PATCH] staging: iio: adt7316: Add missing include files

[YueHaibing]

Fix build error:

drivers/staging/iio/addac/adt7316.c: In function adt7316_store_update_DAC:
drivers/staging/iio/addac/adt7316.c:949:3: error: implicit declaration of
 function gpiod_set_value; did you mean gpio_set_value? [-Werror=implicit-function-declaration]
   gpiod_set_value(chip->ldac_pin, 0);

drivers/staging/iio/addac/adt7316.c: In function adt7316_setup_irq:
drivers/staging/iio/addac/adt7316.c:1807:13: error: implicit declaration of
 function irqd_get_trigger_type; did you mean devm_iio_trigger_free? [-Werror=implicit-function-declaration]
  irq_type = irqd_get_trigger_type(irq_get_irq_data(chip->bus.irq));

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Fixes: 7f6b6d553df7 ("Staging: iio: adt7316: Add all irq related code in adt7316_irq_setup()")
Fixes: c63460c4298f ("Staging: iio: adt7316: Use device tree data to set ldac_pin")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/staging/iio/addac/adt7316.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 37ce563..9d3d159 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -16,6 +16,8 @@
 #include <linux/i2c.h>
 #include <linux/rtc.h>
 #include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/gpio/consumer.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/events.h>
-- 
2.7.4