[PATCH v2] usb: xhci-pci: Add AMD 600 series to xhci-pci-prom21
From: Stephen Horvath
Date: Thu Aug 20 2026 - 09:00:11 EST
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.
Cc: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
Cc: Jihong Min <hurryman2212@xxxxxxxxx>
Signed-off-by: Stephen Horvath <linux@xxxxxxxxxxxx>
---
Changes in v2:
- Added Device IDs `0x43f9` & `0x43fa`
- Link to v1: https://patch.msgid.link/20260818-xhci-pci-prom21-v1-1-6584857e654d@xxxxxxxxxxxxxx
---
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@xxxxxxxxxxxx>