i2sbus_hw_free    316 sound/aoa/soundbus/i2sbus/i2sbus-pcm.c 	return i2sbus_hw_free(substream, 0);
i2sbus_hw_free    321 sound/aoa/soundbus/i2sbus/i2sbus-pcm.c 	return i2sbus_hw_free(substream, 1);