[ALSA] oxygen: make SPI configuration configurable

Add a field to the model structure so that it is possible to have a card
where the SPI outputs 4 and 5 are used for an EEPROM.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index ecc0e6f..83c6fab 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -256,6 +256,7 @@
 	.update_dac_volume = update_ak4396_volume,
 	.update_dac_mute = update_ak4396_mute,
 	.dac_tlv = ak4396_db_scale,
+	.function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
 };
 static const struct oxygen_model model_meridian = {
 	.shortname = "C-Media CMI8788",
@@ -270,6 +271,7 @@
 	.update_dac_mute = update_ak4396_mute,
 	.dac_tlv = ak4396_db_scale,
 	.record_from_dma_b = 1,
+	.function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
 };
 
 static int __devinit generic_oxygen_probe(struct pci_dev *pci,