linux-kernel - [PATCH 4.9 08/21] ALSA: usb-audio: Add native DSD support for Esoteric D-05X

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Message-Id: <20171227164600.488275336@linuxfoundation.org>
Date:   Wed, 27 Dec 2017 17:46:24 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jussi Laako <jussi@...arnerd.net>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 4.9 08/21] ALSA: usb-audio: Add native DSD support for Esoteric D-05X

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jussi Laako <jussi@...arnerd.net>

commit 866f7ed7d67936dcdbcddc111c8af878c918fe7c upstream.

Adds VID:PID of Esoteric D-05X to the TEAC device id's.
Renames the is_teac_50X_dac() function to is_teac_dsd_dac() to cover
broader device family from the same corporation sharing the same USB
audio implementation.

Signed-off-by: Jussi Laako <jussi@...arnerd.net>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/usb/quirks.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1170,10 +1170,11 @@ static bool is_marantz_denon_dac(unsigne
 /* TEAC UD-501/UD-503/NT-503 USB DACs need a vendor cmd to switch
  * between PCM/DOP and native DSD mode
  */
-static bool is_teac_50X_dac(unsigned int id)
+static bool is_teac_dsd_dac(unsigned int id)
 {
 	switch (id) {
 	case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-503/NT-503 */
+	case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */
 		return true;
 	}
 	return false;
@@ -1206,7 +1207,7 @@ int snd_usb_select_mode_quirk(struct snd
 			break;
 		}
 		mdelay(20);
-	} else if (is_teac_50X_dac(subs->stream->chip->usb_id)) {
+	} else if (is_teac_dsd_dac(subs->stream->chip->usb_id)) {
 		/* Vendor mode switch cmd is required. */
 		switch (fmt->altsetting) {
 		case 3: /* DSD mode (DSD_U32) requested */
@@ -1376,7 +1377,7 @@ u64 snd_usb_interface_dsd_format_quirks(
 	}
 
 	/* TEAC devices with USB DAC functionality */
-	if (is_teac_50X_dac(chip->usb_id)) {
+	if (is_teac_dsd_dac(chip->usb_id)) {
 		if (fp->altsetting == 3)
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 	}