Re: [PATCH v4 0/8] Bluetooth: Add MediaTek MT7927 (MT6639) support

[Javier Tia]

Hi Luiz,

On Tue, 31 Mar 2026 Luiz Augusto von Dentz wrote:
> Ok, but on 8/8 it seem to suggest the problem still exists which
> trigger the following review:
>
> https://sashiko.dev/#/patchset/20260330-mt7927-bt-support-v4-0-cecc025e7062%40jetm.me
>
> Perhaps we should ajust the commit description if the 19 seconds
> doesn't really occurs when 2/8 is applied.

Good catch. The ~19 second delay is indeed fixed by patch 2/8, so the
note in 8/8 was misleading as written.

I've updated the commit message in 8/8 to clarify:

  Note: boards with this USB ID expose only one ISO alternate setting
  (alt 0). Without the fix in patch 2/8 ("btmtk: fix ISO interface
  setup for single alt setting"), this caused ~19 second initialization
  delays. With the fix applied, initialization completes in ~2.6
  seconds.

This is addressed in v5:
https://lore.kernel.org/linux-bluetooth/20260331-mt7927-bt-support-v5-0-6f31b4342daa@xxxxxxx/

Best,
Javier