ALSA: ice1724 - adding GPIO routines for mask and direction

* get/set routines for GPIO mask and direction

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index cecf1ff..56d8d67 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -298,6 +298,16 @@
 	inb(ICEREG(ice, DATA)); /* dummy read for pci-posting */
 }
 
+static unsigned int snd_ice1712_get_gpio_dir(struct snd_ice1712 *ice)
+{
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_DIRECTION);
+}
+
+static unsigned int snd_ice1712_get_gpio_mask(struct snd_ice1712 *ice)
+{
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_WRITE_MASK);
+}
+
 static void snd_ice1712_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
 {
 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, data);
@@ -2557,7 +2567,9 @@
 	mutex_init(&ice->i2c_mutex);
 	mutex_init(&ice->open_mutex);
 	ice->gpio.set_mask = snd_ice1712_set_gpio_mask;
+	ice->gpio.get_mask = snd_ice1712_get_gpio_mask;
 	ice->gpio.set_dir = snd_ice1712_set_gpio_dir;
+	ice->gpio.get_dir = snd_ice1712_get_gpio_dir;
 	ice->gpio.set_data = snd_ice1712_set_gpio_data;
 	ice->gpio.get_data = snd_ice1712_get_gpio_data;