ASoC: wm8776: Add WM8775 device ID to the WM8776

The WM8775 is register compatible with the WM8776 so can be supported with
the same driver though it is an ADC only part. Add the device ID to the
WM8776 driver, further updates will be added in the future.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8776.c

@@ -30,6 +30,11 @@
 
 #include "wm8776.h"
 
+enum wm8776_chip_type {
+	WM8775 = 1,
+	WM8776,
+};
+
 /* codec private data */
 struct wm8776_priv {
 	enum snd_soc_control_type control_type;
@@ -512,7 +517,8 @@ static __devexit int wm8776_i2c_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id wm8776_i2c_id[] = {
-	{ "wm8776", 0 },
+	{ "wm8775", WM8775 },
+	{ "wm8776", WM8776 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, wm8776_i2c_id);