[SRU] [D/E/Unstable] [PATCH 0/3] Sync intel-lpss workaround with upstream version

Kai-Heng Feng kai.heng.feng at canonical.com
Tue Nov 26 05:03:03 UTC 2019

BugLink: https://bugs.launchpad.net/bugs/1851901

On new Intel SoC, blacklisting intel-lpss or noapic is needed to make
system boot. Touchpad doesn't work as a side effect.

Write-comining doesn't work for intel-lpss, force it to use uncachable
memory region.

User confirmed with the patch series the noapic or blacklisting
intel-lpss can be removed. System boot with a working touchpad.

[Regression Potenial]
Low. Tested on several older Intel laptops, still work without any

Kai-Heng Feng (1):
  Revert "UBUNTU: SAUCE: mfd: intel-lpss: add quirk for Dell XPS 13 7390

Tuowen Zhao (2):
  lib: devres: add a helper function for ioremap_uc
  mfd: intel-lpss: Use devm_ioremap_uc for MMIO

 drivers/mfd/intel-lpss.c | 20 ++------------------
 lib/devres.c             |  3 +--
 2 files changed, 3 insertions(+), 20 deletions(-)


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