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    Subject[PATCH AUTOSEL 4.18 67/88] ALSA: usb-audio: Generic DSD detection for Thesycon-based implementations
    Date
    From: Yue Wang <yuleopen@gmail.com>

    [ Upstream commit 1ea0358ecb848058b35b6da13d7f4c08610a73a8 ]

    Thesycon provides solutions to XMOS chips, and has its own device
    vendor id.

    In this patch, we use generic method to detect DSD capability of
    Thesycon-based UAC2 implementations in order to support a wide range
    of current and future devices.

    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>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    ---
    sound/usb/quirks.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
    index 6fbafce0aa6b..dde87d64bc32 100644
    --- a/sound/usb/quirks.c
    +++ b/sound/usb/quirks.c
    @@ -1444,6 +1444,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
    */
    switch (USB_ID_VENDOR(chip->usb_id)) {
    case 0x20b1: /* XMOS based devices */
    + case 0x152a: /* Thesycon devices */
    case 0x25ce: /* Mytek devices */
    if (fp->dsd_raw)
    return SNDRV_PCM_FMTBIT_DSD_U32_BE;
    --
    2.17.1
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