linux-kernel - Re: [PATCH] Revert "ASoC: soc-pcm: Don't zero TDM masks in __soc_pcm

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Date:   Fri, 30 Dec 2022 10:53:25 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     nickel@...linux.org
Cc:     linux-kernel@...r.kernel.org, Oleg Obidin <obidinog@...ealt.ru>
Subject: Re: [PATCH] Revert "ASoC: soc-pcm: Don't zero TDM masks in
 __soc_pcm_open()"

On Fri, Dec 30, 2022 at 12:30:53PM +0300, nickel@...linux.org wrote:
> From: Nikolai Kostrigin <nickel@...linux.org>
> 
> This reverts commit c34db0d6b88b1da95e7ab3353e674f4f574cccee.
> 
> Sudden sound disappearance was reported for some laptops, e.g.
> Acer Swift 3 SF314-59-78UR 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
> 
> lspci
> 0000:00:1f.3 Multimedia audio controller: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller (rev 20)
>         Subsystem: Acer Incorporated [ALI] Device 148c
>         Flags: bus master, fast devsel, latency 32, IRQ 197, IOMMU group 12
>         Memory at 601f270000 (64-bit, non-prefetchable) [size=16K]
>         Memory at 601f000000 (64-bit, non-prefetchable) [size=1M]
>         Capabilities: [50] Power Management version 3
>         Capabilities: [80] Vendor Specific Information: Len=14 <?>
>         Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
>         Kernel driver in use: sof-audio-pci
> 
> Bisection revealed the commit being reverted.
> 
> Reported-by: Oleg Obidin <obidinog@...ealt.ru>
> Link: https://bugzilla.altlinux.org/44690
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216861
> Signed-off-by: Nikolai Kostrigin <nickel@...linux.org>
> ---
>  sound/soc/soc-pcm.c | 5 +++++
>  1 file changed, 5 insertions(+)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>