linux-kernel - Re: [PATCH 1/7] PCI: Add Intel Nova Lake S audio Device ID

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Message-ID: <20251103160219.GA1806872@bhelgaas>
Date: Mon, 3 Nov 2025 10:02:19 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Cc: lgirdwood@...il.com, broonie@...nel.org, linux-sound@...r.kernel.org,
	kai.vehmanen@...ux.intel.com, ranjani.sridharan@...ux.intel.com,
	yung-chuan.liao@...ux.intel.com, pierre-louis.bossart@...ux.dev,
	bhelgaas@...gle.com, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, kw@...ux.com
Subject: Re: [PATCH 1/7] PCI: Add Intel Nova Lake S audio Device ID

On Mon, Nov 03, 2025 at 02:43:57PM +0200, Péter Ujfalusi wrote:
> On 02/10/2025 11:42, Peter Ujfalusi wrote:
> > Add Nova Lake S (NVL-S) audio Device ID
> 
> Can you check this patch so Takashi-san can pick the series up?

We have a long history of adding these Intel audio device IDs that are
only used once, which is not our usual practice per the comment at the
top of the file:

 *      Do not add new entries to this file unless the definitions
 *      are shared between multiple drivers.

Generally speaking, if an ID is used by only a single driver, we
either use the plain hex ID or add the #define to the driver that uses
it.

Have we been operating under some special exception for the Intel
audio IDs?  I see that I acked some of these additions in the past,
but I don't remember why.

> > Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>
> > Reviewed-by: Kai Vehmanen <kai.vehmanen@...ux.intel.com>
> > Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
> > ---
> >  include/linux/pci_ids.h | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> > index 92ffc4373f6d..a9a089566b7c 100644
> > --- a/include/linux/pci_ids.h
> > +++ b/include/linux/pci_ids.h
> > @@ -3075,6 +3075,7 @@
> >  #define PCI_DEVICE_ID_INTEL_5100_22	0x65f6
> >  #define PCI_DEVICE_ID_INTEL_IOAT_SCNB	0x65ff
> >  #define PCI_DEVICE_ID_INTEL_HDA_FCL	0x67a8
> > +#define PCI_DEVICE_ID_INTEL_HDA_NVL_S	0x6e50
> >  #define PCI_DEVICE_ID_INTEL_82371SB_0	0x7000
> >  #define PCI_DEVICE_ID_INTEL_82371SB_1	0x7010
> >  #define PCI_DEVICE_ID_INTEL_82371SB_2	0x7020
> 
>