linux-kernel - Re: [PATCH] PCI: Add MUCSE vendor ID to pci

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Message-ID: <20250326165728.GA1339144@bhelgaas>
Date: Wed, 26 Mar 2025 11:57:28 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Yibo Dong <dong100@...se.com>
Cc: bhelgaas@...gle.com, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PCI: Add MUCSE vendor ID to pci_ids.h

On Tue, Mar 25, 2025 at 02:57:18PM +0800, Yibo Dong wrote:
> Add MUCSE as a vendor ID (0x8848) for PCI devices so we can use
> the macro for future drivers.
> 
> Signed-off-by: Yibo Dong <dong100@...se.com>

Please post this in the series where you add the future drivers.

We don't add new things to pci_ids.h unless they are actually used by
more than one driver because it complicates life for people who
backport things (there's a note at the top of the file about this).

> ---
>  include/linux/pci_ids.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index de5deb1a0118..f1b4c61c6d3c 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -3143,6 +3143,8 @@
>  #define PCI_VENDOR_ID_SCALEMP		0x8686
>  #define PCI_DEVICE_ID_SCALEMP_VSMP_CTL	0x1010
>  
> +#define PCI_VENDOR_ID_MUCSE		0x8848

https://pcisig.com/membership/member-companies?combine=8848 says this
Vendor ID belongs to:

  Wuxi Micro Innovation Integrated Circuit Design Co.,Ltd

I suppose "MUCSE" connects with that somehow.

It's nice if people can connect PCI_VENDOR_ID_MUCSE with a name used
in marketing the product.  Maybe "MUCSE" is the name under which
Wuxi Micro Innovation Integrated Circuit Design Co.,Ltd markets
products?

>  #define PCI_VENDOR_ID_COMPUTONE		0x8e0e
>  #define PCI_DEVICE_ID_COMPUTONE_PG	0x0302
>  #define PCI_SUBVENDOR_ID_COMPUTONE	0x8e0e
> -- 
> 2.25.1
>