This is a note to let you know that I've just added the patch titled
ALSA: usb-audio: add quirk flag to enable native DSD for McIntosh devices
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-usb-audio-add-quirk-flag-to-enable-native-dsd-for-mcintosh-devices.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 99248c8902f505ec064cf2b0f74629016f2f4c82 Mon Sep 17 00:00:00 2001
From: Max McCarthy <mmccarthy@xxxxxxxxxxxxxxxx>
Date: Tue, 24 Oct 2023 12:30:19 +0000
Subject: ALSA: usb-audio: add quirk flag to enable native DSD for McIntosh devices
From: Max McCarthy <mmccarthy@xxxxxxxxxxxxxxxx>
commit 99248c8902f505ec064cf2b0f74629016f2f4c82 upstream.
McIntosh devices supporting native DSD require the feature to be
explicitly exposed. Add a flag that fixes an issue where DSD audio was
defaulting to DSD over PCM instead of delivering raw DSD data.
Signed-off-by: Max McCarthy <mmccarthy@xxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/BL0PR13MB4433226005162D186A8DFF4AD6DFA@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/usb/quirks.c | 2 ++
1 file changed, 2 insertions(+)
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2220,6 +2220,8 @@ static const struct usb_audio_quirk_flag
QUIRK_FLAG_DSD_RAW),
VENDOR_FLG(0x2ab6, /* T+A devices */
QUIRK_FLAG_DSD_RAW),
+ VENDOR_FLG(0x2afd, /* McIntosh Laboratory, Inc. */
+ QUIRK_FLAG_DSD_RAW),
VENDOR_FLG(0x2d87, /* Cayin device */
QUIRK_FLAG_DSD_RAW),
VENDOR_FLG(0x3336, /* HEM devices */
Patches currently in stable-queue which might be from mmccarthy@xxxxxxxxxxxxxxxx are
queue-6.6/alsa-usb-audio-add-quirk-flag-to-enable-native-dsd-for-mcintosh-devices.patch
