linux-kernel - Re: [PATCH 0/7] Adjust all AMD audio drivers to use AMD

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Message-ID: <b2876489-7bd5-4c38-b1f8-2d2fcb5a9aba@kernel.org>
Date: Tue, 18 Feb 2025 09:16:20 -0600
From: Mario Limonciello <superm1@...nel.org>
To: Mark Brown <broonie@...nel.org>, Borislav Petkov <bp@...en8.de>
Cc: Yazen Ghannam <yazen.ghannam@....com>,
 Mario Limonciello <mario.limonciello@....com>,
 Thomas Gleixner <tglx@...utronix.de>,
 Dave Hansen <dave.hansen@...ux.intel.com>,
 "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
 "H . Peter Anvin" <hpa@...or.com>, Liam Girdwood <lgirdwood@...il.com>,
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
 Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
 Bard Liao <yung-chuan.liao@...ux.intel.com>,
 Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
 Daniel Baluta <daniel.baluta@....com>,
 Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
 Pierre-Louis Bossart <pierre-louis.bossart@...ux.dev>,
 Vijendar Mukunda <Vijendar.Mukunda@....com>,
 Peter Zijlstra <peterz@...radead.org>,
 Jeff Johnson <quic_jjohnson@...cinc.com>,
 Venkata Prasad Potturu <venkataprasad.potturu@....com>,
 Uwe Kleine-König <u.kleine-koenig@...libre.com>,
 Arnd Bergmann <arnd@...db.de>,
 Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
 Krzysztof Kozlowski <krzk@...nel.org>,
 "open list:AMD NODE DRIVER" <linux-kernel@...r.kernel.org>,
 "open list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..."
 <linux-sound@...r.kernel.org>,
 "moderated list:SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS"
 <sound-open-firmware@...a-project.org>
Subject: Re: [PATCH 0/7] Adjust all AMD audio drivers to use AMD_NODE

On 2/18/2025 09:11, Mark Brown wrote:
> On Mon, Feb 17, 2025 at 05:17:40PM -0600, Mario Limonciello wrote:
> 
>> The various AMD audio drivers have self contained implementations
>> for SMN router communication that require hardcoding the bridge ID.
> 
>> These implementations also don't prevent race conditions with other
>> drivers performing SMN communication.
> 
>> A new centralized driver AMD_NODE is introduced and all drivers in
>> the kernel should use this instead. Adjust all AMD audio drivers to
>> use it.
>> Mario Limonciello (7):
>>    x86/amd_node: Add a helper for use with `read_poll_timeout`
> 
> What's the thinking for merging this - the SMN driver is in arch/x86 but
> the bulk of the changes are in ASoC?  My first thought is that it's
> mostly ASoC stuff, are the x86 people OK with me picking up the arch
> patch (I'd put it on a branch anyway so if needed we can do a merge
> later)?

Probably need Boris' perspective here.

There are some patches that just landed to tip/tip.git today which I 
believe the first patch needs to rebase on top of.

My thought is maybe:
1) We can get an immutable branch from tip/tip.git with the conflicting 
changes.

2) An Ack from x86 maintainers on the first patch.

3) ASoC merges immutable branch and takes the series through ASoC tree.