linux-kernel - Re: [PATCH] ALSA: hda: intel: Introduce msi64 parameter to override 64-bit MSI restriction

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Message-ID: <87sed1ilip.wl-tiwai@suse.de>
Date: Tue, 23 Dec 2025 10:40:30 +0100
From: Takashi Iwai <tiwai@...e.de>
To: Han Gao <gaohan@...as.ac.cn>
Cc: Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
	Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
	Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
	Bard Liao <yung-chuan.liao@...ux.intel.com>,
	Maxim Mikityanskiy <maxtram95@...il.com>,
	Pierre-Louis Bossart <pierre-louis.bossart@...ux.dev>,
	Stuart Hayhurst <stuart.a.hayhurst@...il.com>,
	linux-sound@...r.kernel.org,
	Han Gao <rabenda.cn@...il.com>,
	linux-riscv@...ts.infradead.org,
	sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: hda: intel: Introduce msi64 parameter to override 64-bit MSI restriction

On Sat, 20 Dec 2025 18:05:01 +0100,
Han Gao wrote:
> 
> Sophgo SG2042 MSI driver does not support 32-bit MSI.
> Introduce an 'msi64' kernel parameter to bypass NO_MSI64 for ATI/HDMI.
> 
> Signed-off-by: Han Gao <gaohan@...as.ac.cn>

As Arnd already suggested, there is no reason to add a new module
option just for this case.

If any, we can add a device-specific quirk entry, but it should be
investigated more deeply at first.


thanks,

Takashi