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+GTM601 UMTS modem audio interface CODEC
+
+This device has no configuration interface. The sample rate and channels are
+based on the compatible string
+ "option,gtm601" = 8kHz mono
+ "broadmobi,bm818" = 48KHz stereo
+
+Required properties:
+
+ - compatible : one of
+ "option,gtm601"
+ "broadmobi,bm818"
+
+
+Example:
+
+codec: gtm601_codec {
+ compatible = "option,gtm601";
+};