On Sun, Nov 03, 2019 at 06:41:38PM +0100, gregkh@linuxfoundation.org wrote:
The patch below does not apply to the 5.3-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From e2995b95a914bbc6b5352be27d5d5f33ec802d2c Mon Sep 17 00:00:00 2001 From: Justin Song flyingecar@gmail.com Date: Thu, 24 Oct 2019 12:27:14 +0200 Subject: [PATCH] ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface
This patch adds native DSD support for Gustard U16/X26 USB Interface. Tested using VID and fp->dsd_raw method.
Signed-off-by: Justin Song flyingecar@gmail.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/CA+9XP1ipsFn+r3bCBKRinQv-JrJ+EHOGBdZWZoMwxFv0R8Y1M... Signed-off-by: Takashi Iwai tiwai@suse.de
For 5.3 and 4.19 I took the following as dependencies:
eb7505d52a2f ("ALSA: usb-audio: DSD auto-detection for Playback Designs") 0067e154b11e ("ALSA: usb-audio: Update DSD support quirks for Oppo and Rotel")
For older kernels it was becoming too long of a list, and I don't have a way to test it so I didn't do anything about it there. Backports are more than welcome.
Note: yes, patching it up to apply on 4.14 is easy, but if this patch is needed there then there are quite a few more needed so I didn't want to take just this one.