[SRU] [B/D/E/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/1] Fix touchpad IRQ storm after S3

Kai-Heng Feng kai.heng.feng at canonical.com
Mon Aug 26 04:41:23 UTC 2019


BugLink: https://bugs.launchpad.net/bugs/1841396

[Impact]
IRQ storm generated from touchpad after S3, renders touchpad useless.

[Fix]
gpiolib routines expect pin offset instead of pin number. Passing correct
pin offset can solve the issue.

[Test]
With the patch applied the issue doesn't happen anymore on HP Zbook 17
G5.

[Regression Potential]
Low. Though there are many users of pinctrl-intel, this make it
correctly uses gpiolib.

Chris Chiu (1):
  pinctrl: intel: remap the pin number to gpio offset for irq enabled
    pin

 drivers/pinctrl/intel/pinctrl-intel.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

-- 
2.17.1




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