[SRU] [B/D/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/1] Unhide Nvidia HDA audio controller

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1836308

[Impact]
Nvidia HDA audio controller comes with Nvidia graphics cannot be found
by PCI subsystem.

[Fix]
Write bit 25 at graphics' config space offset 0x488 to enable the HDA
controller.

[Test]
Nvidia HDA controller is not listed under lspci.
After applying the fix lspci can find Nvidia HDA controller.

[Regression Potential]
Low. This fix doesn't bring any functional change other then exposing
HDA controller at hardware level.

Lukas Wunner (1):
  PCI: Enable NVIDIA HDA controllers

 drivers/pci/quirks.c    | 30 ++++++++++++++++++++++++++++++
 include/linux/pci_ids.h |  1 +
 2 files changed, 31 insertions(+)

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2.17.1