Re: [PATCH v2] usb: xhci-pci: Add AMD 600 series to xhci-pci-prom21

[Jihong Min <hurryman2212@gmail.com>]

Hi,

On 8/20/26 21:59, Stephen Horvath wrote:
> It seems the xhci-pci-prom21 module only has IDs for the 800 series
> chipsets. However, the 600 series chipsets also have Promontory 21
> chips, so we should add their IDs to the list as well.
> 
> I have tested this on my X670 board featuring DID `0x43f7`.
> 
> `1022:43f7` also appears on the PCI ID database
> (https://pci-ids.ucw.cz/read/PC/1022/43f7).
> Device IDs `0x43f9` (B665) & `0x43fa` (A620) were suggested by Shyam.

It would be nice to update all the newly added device IDs to the kernel
documentation as well.

> 
> Cc: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
> Cc: Jihong Min <hurryman2212@gmail.com>
> Signed-off-by: Stephen Horvath <linux@stevetech.au>
> ---
> Changes in v2:
> - Added Device IDs `0x43f9` & `0x43fa`
> - Link to v1: https://patch.msgid.link/20260818-xhci-pci-prom21-v1-1-6584857e654d@outlook.com.au
> ---
>  drivers/usb/host/xhci-pci-prom21.c | 3 +++
>  drivers/usb/host/xhci-pci.c        | 3 +++
>  drivers/usb/host/xhci-pci.h        | 3 +++
>  3 files changed, 9 insertions(+)
> 
> diff --git a/drivers/usb/host/xhci-pci-prom21.c b/drivers/usb/host/xhci-pci-prom21.c
> index 6486f4a09345..5f088a47d79f 100644
> --- a/drivers/usb/host/xhci-pci-prom21.c
> +++ b/drivers/usb/host/xhci-pci-prom21.c
> @@ -111,6 +111,9 @@ static void prom21_xhci_remove(struct pci_dev *dev)
>  }
>  
>  static const struct pci_device_id pci_ids[] = {
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43F7) },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43F9) },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43FA) },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43FC) },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43FD) },
>  	{ /* end: all zeroes */ }
> diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
> index a8889081ae82..b407676808fc 100644
> --- a/drivers/usb/host/xhci-pci.c
> +++ b/drivers/usb/host/xhci-pci.c
> @@ -701,6 +701,9 @@ static const struct pci_device_id pci_ids_renesas[] = {
>  
>  /* handled by xhci-pci-prom21 if enabled */
>  static const struct pci_device_id pci_ids_prom21[] = {
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43F7) },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43F9) },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43FA) },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43FC) },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PROM21_XHCI_43FD) },
>  	{ /* end: all zeroes */ }
> diff --git a/drivers/usb/host/xhci-pci.h b/drivers/usb/host/xhci-pci.h
> index 11f435f94322..533efc7db801 100644
> --- a/drivers/usb/host/xhci-pci.h
> +++ b/drivers/usb/host/xhci-pci.h
> @@ -4,6 +4,9 @@
>  #ifndef XHCI_PCI_H
>  #define XHCI_PCI_H
>  
> +#define PCI_DEVICE_ID_AMD_PROM21_XHCI_43F7	0x43f7
> +#define PCI_DEVICE_ID_AMD_PROM21_XHCI_43F9	0x43f9
> +#define PCI_DEVICE_ID_AMD_PROM21_XHCI_43FA	0x43fa
>  #define PCI_DEVICE_ID_AMD_PROM21_XHCI_43FC	0x43fc
>  #define PCI_DEVICE_ID_AMD_PROM21_XHCI_43FD	0x43fd
>  
> 
> ---
> base-commit: e1e6e541c5c9cf548e9fdc35fc26808c82074440
> change-id: 20260818-xhci-pci-prom21-ceb025d484a8
> 
> Best regards,
> --  
> Stephen Horvath <linux@stevetech.au>
> 


Sincerely,
Jihong Min