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[Launchpad Bug Tracker <1359052@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:ubuntu/trusty-proposed/linux-lts-utopic

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https://bugs.launchpad.net/bugs/1359052

Title:
  [HP Z1-G2] Realtek card reader [10ec:5249] does not work after
  suspended on this system

Status in HWE Next Project:
  Fix Committed
Status in HWE Next trusty series:
  Fix Committed
Status in HWE Next utopic series:
  Fix Committed
Status in HWE Next vivid series:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Trusty:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed
Status in linux source package in Vivid:
  Fix Committed

Bug description:
  SRU Justification:

  Impact: the card reader does not work on this system after s3.
  Fix: cherry pick a simple patchset only for the certain driver module.
  Testcase: already tested in OEM projects

  Before suspend
  [ 12.896116] rtsx_pci 0000:03:00.0: irq 47 for MSI/MSI-X
  [ 12.896128] rtsx_pci 0000:03:00.0: rtsx_pci_acquire_irq: pcr->msi_en = 1, pci->irq = 47
  After resume
  [ 89.354583] rtsx_pci 0000:03:00.0: no hotplug settings from platform

  rmmod rtsx_pci
  modprobe rtsx_pci
  doesn't work

  Reboot
  [ 12.358093] rtsx_pci 0000:03:00.0: irq 47 for MSI/MSI-X
  [ 12.358103] rtsx_pci 0000:03:00.0: rtsx_pci_acquire_irq: pcr->msi_en = 1, pci->irq = 47
  [ 12.455971] rtsx_pci: probe of 0000:03:00.0 failed with error -110

  Then driver cannot be loaded

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