[PATCH 1/1][SRU][OEM-5.6/G] UBUNTU: SAUCE: PCI/ASPM: VMD: add ASPM quirk for 8086:a0bc

[You-Sheng Yang]

BugLink: https://bugs.launchpad.net/bugs/1893194

One VMD equipped platform has another PCI bridge with PCI ID [8086:a0bc]
that is not already in Ubuntu sauced PCI_DEV_FLAGS_ENABLE_ASPM list.
Link Capability Register shows ASPM L1 supported, but has ASPM Disabled
in Link Control status:

10000:e0:1c.4 PCI bridge [0604]: Intel Corporation Device [8086:a0bc]
(rev 20) (prog-if 00 [Normal decode])
        ...
 Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
  ...
  LnkCap: Port #5, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <16us
   ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+
  LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
   ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-

This adds an additional device [8086:a0bc], a PCI bridge behind VMD
controller, to enable its ASPM.

Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 drivers/pci/quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 44df82ede565..1feba9773b74 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5652,3 +5652,4 @@ static void pci_fixup_enable_aspm(struct pci_dev *pdev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a09, pci_fixup_enable_aspm);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa0b0, pci_fixup_enable_aspm);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa0bc, pci_fixup_enable_aspm);
-- 
2.27.0