Re: [REGRESSION] Acp5x probing regression introduced between kernel 6.7.2 -> 6.7.4

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On Mon, 12 Feb 2024 10:13:00 +0100,
Takashi Iwai wrote:
> 
> On Sun, 11 Feb 2024 18:19:25 +0100,
> Linux regression tracking (Thorsten Leemhuis) wrote:
> > 
> > [CCing a few people]
> > 
> > On 11.02.24 15:34, Ted Chang wrote:
> > > 
> > > I noticed 6.7.4  has introduced a regression for the steam deck. The LCD
> > > steam deck can no longer probe the acp5x audio chipset anymore. This
> > > regression does not affect the 6.8.x series.  I did not test kernel
> > > 6.7.3 because Opensuse tumbleweed skipped the update on my machine.
> > 
> > Thx for your report. FWIW, problems like this can be caused by all
> > sorts of changes, but obviously those in the area of audio support
> > are most likely to cause this. There are just a few in the 
> > v6.7.2..v6.7.4 range[1]. Among them a commit that is related to
> > acp5x, that's why I CCed its author as well (Venkata Prasad Potturu). 
> > 
> > Maybe one of the new recipients will have an idea. If not, you most
> > likely will have to bisect this and check if mainline is affected
> > as well.[2]
> > 
> > Ciao, Thorsten
> > 
> > [1]
> > $ git log --oneline  v6.7.2..v6.7.4 sound/ 
> > f3570675bf09af ASoC: codecs: wsa883x: fix PA volume control
> > 2f8e9b77ca2fea ASoC: codecs: lpass-wsa-macro: fix compander volume hack
> > 5b465d6384e4eb ASoC: codecs: wcd938x: fix headphones volume controls
> > 1673211a38012e ASoC: qcom: sc8280xp: limit speaker volumes
> > 242b5bffa23a9c ASoC: codecs: rtq9128: Fix TDM enable and DAI format control flow
> > 2c272ff9859601 ASoC: codecs: rtq9128: Fix PM_RUNTIME usage
> > 4a28302b2c681e ALSA: hda/conexant: Fix headset auto detect fail in cx8070 and SN6140
> > e37a96941fdd53 ALSA: hda: intel-dspcfg: add filters for ARL-S and ARL
> > ffa3eea886c6fe ALSA: hda: Intel: add HDA_ARL PCI ID support
> > 4b6986b170f2f2 ASoC: amd: Add new dmi entries for acp5x platform
> 
> This one is the only relevant change, I suppose.
> The machine matches with 'Valve Jupiter'.
> 
> Interestingly, the system seems working with 6.8-rc3, so some piece
> might be missing.  Or simply reverting this patch should fix.

In the bugzilla entry, the reporter confirmed that the revert of the
commit 4b6986b170f2f2 fixed the problem.

#regzbot introduced: 4b6986b170f2f2


Takashi

> 
> 
> Takashi
> 
> > e38ad4ace20b4d ALSA: hda: Refer to correct stream index at loops
> > a434c75e0671f9 soundwire: fix initializing sysfs for same devices on different buses
> >  
> > [2] I'm working on a guide that describes what's needed:
> > https://www.leemhuis.info/files/misc/How%20to%20bisect%20a%20Linux%20kernel%20regression%20%e2%80%94%20The%20Linux%20Kernel%20documentation.html
> > 
> > > Steps to reproduce the problem
> > > 1. Obtain a steam deck
> > > 2. Install kernel 6.7.4
> > > 3. Boot the device and you will see dummy output in gnome shell
> > > 
> > > Observed kernel logs.
> > > 
> > > [    8.755614] cs35l41 spi-VLV1776:00: supply VA not found, using dummy regulator
> > > [    8.760506] cs35l41 spi-VLV1776:00: supply VP not found, using dummy regulator
> > > [    8.777148] cs35l41 spi-VLV1776:00: Cirrus Logic CS35L41 (35a40), Revision: B2
> > > [    8.777471] cs35l41 spi-VLV1776:01: supply VA not found, using dummy regulator
> > > [    8.777532] cs35l41 spi-VLV1776:01: supply VP not found, using dummy regulator
> > > [    8.777709] cs35l41 spi-VLV1776:01: Reset line busy, assuming shared reset
> > > [    8.788465] cs35l41 spi-VLV1776:01: Cirrus Logic CS35L41 (35a40), Revision: B2
> > > [    8.877280] snd_hda_intel 0000:04:00.1: enabling device (0000 -> 0002)
> > > [    8.877595] snd_hda_intel 0000:04:00.1: Handle vga_switcheroo audio client
> > > [    8.889913] snd_acp_pci 0000:04:00.5: enabling device (0000 -> 0002)
> > > [    8.890063] snd_acp_pci 0000:04:00.5: Unsupported device revision:0x50
> > > [    8.890129] snd_acp_pci: probe of 0000:04:00.5 failed with error -22
> > > [    8.906136] snd_hda_intel 0000:04:00.1: bound 0000:04:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]
> > > 
> > > 
> > > No kernel module in use shown.
> > > 
> > > 04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD]
> > > ACP/ACP3X/ACP6x Audio Coprocessor [1022:15e2] (rev 50)
> > > Subsystem: Valve Software Device [1e44:1776]
> > > Flags: fast devsel, IRQ 70, IOMMU group 4
> > > Memory at 80380000 (32-bit, non-prefetchable) [size=256K]
> > > Capabilities: <access denied>
> > > Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x,
> > > snd_pci_acp6x, snd_acp_pci, snd_rpl_pci_acp6x, snd_pci_ps,
> > > snd_sof_amd_renoir, snd_sof_amd_rembrandt, snd_sof_amd_vangogh,
> > > snd_sof_amd_acp63
> > > 
> > > 
> > > Information for package kernel-default:
> > > ---------------------------------------
> > > Repository     : openSUSE-Tumbleweed-Oss
> > > Name           : kernel-default
> > > Version        : 6.7.4-1.1
> > > Arch           : x86_64
> > > Vendor         : openSUSE
> > > Installed Size : 240.3 MiB
> > > Installed      : Yes
> > > Status         : up-to-date
> > > Source package : kernel-default-6.7.4-1.1.nosrc
> > > Upstream URL   : https://www.kernel.org/ <https://www.kernel.org/>
> > > Summary        : The Standard Kernel
> > > Description    : 
> > >     The standard kernel for both uniprocessor and multiprocessor systems.
> > > 
> > > 
> > >     Source Timestamp: 2024-02-06 05:32:37 +0000
> > >     GIT Revision: 01735a3e65287585dd830a6a3d33d909a4f9ae7f
> > >     GIT Branch: stable
> > > 
> > > Handle 0x0000, DMI type 0, 26 bytes
> > > BIOS Information
> > > 	Vendor: Valve
> > > 	Version: F7A0120
> > > 	Release Date: 12/01/2023
> > > 	Address: 0xE0000
> > > 	Runtime Size: 128 kB
> > > 	BIOS Revision: 1.20
> > > 	Firmware Revision: 1.16
> > > 
> > > #regzbot introduced: v6.7.2..v6.7.4
> > > 



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