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From:   Yue Wang <yuleopen@gmail.com>
To:     linux-kernel@vger.kernel.org
Cc:     yuleopen@gmail.com, Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Jussi Laako <jussi@sonarnerd.net>,
        Nobutaka Okabe <nob77413@gmail.com>,
        Kai-Heng Feng <kai.heng.feng@canonical.com>,
        Daniel Mack <daniel@zonque.org>,
        Ruslan Bilovol <ruslan.bilovol@gmail.com>,
        Alberto Aguirre <albaguirre@gmail.com>,
        alsa-devel@alsa-project.org
Subject: [PATCH] alsa/usb-audio: Topping DX7s quirk for DSD interface
Date:   Mon, 23 Jul 2018 01:02:06 -0700
Message-Id: <20180723080208.44235-1-yuleopen@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This patch adds the support for native DSD for Topping DX7s DAC. The
product description is on
http://en.tpdz.net/products_detail/productId=32.html and it's
available on https://www.amazon.com/Balanced-Headphone-Amplifier-Topping-2ES9038Q2M/dp/B07B4VFS21

The DAC uses XMOS chip but uses a special vendor id and product id.
The patch will enable the SNDRV_PCM_FMTBIT_DSD_U32_BE bit for the DAC
hence enable native DSD playback up to DSD512 format.

Signed-off-by: Yue Wang <yuleopen@gmail.com>
---
 sound/usb/quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 02b6cc02767f..c51e2dee3075 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1374,6 +1374,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 		break;
 
 	case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
+	case USB_ID(0x152a, 0x8750): /* Topping DX7s */
 	case USB_ID(0x16b0, 0x06b2): /* NuPrime DAC-10 */
 	case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
 	case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
-- 
2.18.0