ALSA: usb-audio: Move clock setup quirk into quirk_flags

There are a couple of device-specific quirks in the clock setup code,
and those can be moved gracefully to quirk_flags, too.

Link: https://lore.kernel.org/r/20210729073855.19043-7-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/usb/clock.c

@@ -324,11 +324,8 @@ static int __uac_clock_find_source(struct snd_usb_audio *chip,
 					      sources[ret - 1],
 					      visited, validate);
 		if (ret > 0) {
-			/*
-			 * For Samsung USBC Headset (AKG), setting clock selector again
-			 * will result in incorrect default clock setting problems
-			 */
-			if (chip->usb_id == USB_ID(0x04e8, 0xa051))
+			/* Skip setting clock selector again for some devices */
+			if (chip->quirk_flags & QUIRK_FLAG_SKIP_CLOCK_SELECTOR)
 				return ret;
 			err = uac_clock_selector_set_val(chip, entity_id, cur);
 			if (err < 0)
@@ -541,10 +538,8 @@ static int set_sample_rate_v2v3(struct snd_usb_audio *chip,
 		 */
 		clock = snd_usb_clock_find_source(chip, fmt, false);
 
-		/* Denon DN-X1600 hardcoded
-		 * Sample rate seems to be set on the hardware itself
-		 */
-		if (chip->usb_id == USB_ID(0x154e, 0x500e))
+		/* Hardcoded sample rates */
+		if (chip->quirk_flags & QUIRK_FLAG_IGNORE_CLOCK_SOURCE)
 			return 0;
 
 		if (clock < 0)

sound/usb/quirks.c

@@ -1890,6 +1890,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
 		   QUIRK_FLAG_GET_SAMPLE_RATE),
 	DEVICE_FLG(0x04d8, 0xfeea, /* Benchmark DAC1 Pre */
 		   QUIRK_FLAG_GET_SAMPLE_RATE),
+	DEVICE_FLG(0x04e8, 0xa051, /* Samsung USBC Headset (AKG) */
+		   QUIRK_FLAG_SKIP_CLOCK_SELECTOR),
 	DEVICE_FLG(0x0556, 0x0014, /* Phoenix Audio TMX320VC */
 		   QUIRK_FLAG_GET_SAMPLE_RATE),
 	DEVICE_FLG(0x05a3, 0x9420, /* ELP HD USB Camera */
@@ -1906,6 +1908,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
 	DEVICE_FLG(0x1395, 0x740a, /* Sennheiser DECT */
 		   QUIRK_FLAG_GET_SAMPLE_RATE),
+	DEVICE_FLG(0x154e, 0x500e, /* Denon DN-X1600 */
+		   QUIRK_FLAG_IGNORE_CLOCK_SOURCE),
 	DEVICE_FLG(0x1686, 0x00dd, /* Zoom R16/24 */
 		   QUIRK_FLAG_TX_LENGTH),
 	DEVICE_FLG(0x1901, 0x0191, /* GE B850V3 CP2114 audio interface */

sound/usb/usbaudio.h

@@ -140,6 +140,10 @@ extern bool snd_usb_skip_validation;
  *  Add length specifier to transfers
  * QUIRK_FLAG_PLAYBACK_FIRST:
  *  Start playback stream at first even in implement feedback mode
+ * QUIRK_FLAG_SKIP_CLOCK_SELECTOR:
+ *  Skip clock selector setup; the device may reset to invalid state
+ * QUIRK_FLAG_IGNORE_CLOCK_SOURCE:
+ *  Ignore errors from clock source search; i.e. hardcoded clock
  */
 
 #define QUIRK_FLAG_GET_SAMPLE_RATE	(1U << 0)
@@ -147,5 +151,7 @@ extern bool snd_usb_skip_validation;
 #define QUIRK_FLAG_ALIGN_TRANSFER	(1U << 2)
 #define QUIRK_FLAG_TX_LENGTH		(1U << 3)
 #define QUIRK_FLAG_PLAYBACK_FIRST	(1U << 4)
+#define QUIRK_FLAG_SKIP_CLOCK_SELECTOR	(1U << 5)
+#define QUIRK_FLAG_IGNORE_CLOCK_SOURCE	(1U << 6)
 
 #endif /* __USBAUDIO_H */