ALSA: hda - Raise AZX_DCAPS_RIRB_DELAY handling into top drivers

AZX_DCAPS_RIRB_DELAY is dedicated only for Nvidia and its purpose is
just to set a flag in bus.  So it's better to be set in the toplevel
driver, either hda_intel.c or hda_tegra.c, instead of the common
hda_controller.c.  This also allows us to strip this flag from dcaps,
so save one more bit there.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_controller.c

@@ -1054,11 +1054,6 @@ int azx_bus_init(struct azx *chip, const char *model,
 	if (chip->driver_caps & AZX_DCAPS_CORBRP_SELF_CLEAR)
 		bus->core.corbrp_self_clear = true;
 
-	if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
-		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
-		bus->needs_damn_long_delay = 1;
-	}
-
 	if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY)
 		bus->core.align_bdle_4k = true;
 

sound/pci/hda/hda_controller.h

@@ -32,7 +32,7 @@
 #define AZX_DCAPS_NO_MSI	(1 << 9)	/* No MSI support */
 #define AZX_DCAPS_SNOOP_MASK	(3 << 10)	/* snoop type mask */
 #define AZX_DCAPS_SNOOP_OFF	(1 << 12)	/* snoop default off */
-#define AZX_DCAPS_RIRB_DELAY	(1 << 13)	/* Long delay in read loop */
+/* 13 unused */
 /* 14 unused */
 #define AZX_DCAPS_CTX_WORKAROUND (1 << 15)	/* X-Fi workaround */
 #define AZX_DCAPS_POSFIX_LPIB	(1 << 16)	/* Use LPIB as default */

sound/pci/hda/hda_intel.c

@@ -338,7 +338,7 @@ enum {
 
 /* quirks for Nvidia */
 #define AZX_DCAPS_PRESET_NVIDIA \
-	(AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
+	(AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
 	 AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\
 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
 
@@ -1573,6 +1573,11 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 		return err;
 	}
 
+	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
+		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
+		chip->bus.needs_damn_long_delay = 1;
+	}
+
 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 	if (err < 0) {
 		dev_err(card->dev, "Error creating device [card]!\n");

sound/pci/hda/hda_tegra.c

@@ -464,6 +464,8 @@ static int hda_tegra_create(struct snd_card *card,
 	if (err < 0)
 		return err;
 
+	chip->bus.needs_damn_long_delay = 1;
+
 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 	if (err < 0) {
 		dev_err(card->dev, "Error creating device\n");
@@ -481,8 +483,7 @@ MODULE_DEVICE_TABLE(of, hda_tegra_match);
 
 static int hda_tegra_probe(struct platform_device *pdev)
 {
-	const unsigned int driver_flags = AZX_DCAPS_RIRB_DELAY |
-					  AZX_DCAPS_CORBRP_SELF_CLEAR;
+	const unsigned int driver_flags = AZX_DCAPS_CORBRP_SELF_CLEAR;
 	struct snd_card *card;
 	struct azx *chip;
 	struct hda_tegra *hda;