[SRU][B/E/F/U/OEM-OSP1-B/OEM-5.6][PATCH 0/1] UBUNTU: SAUCE: Input: elan_i2c - add more hardware ID for Lenovo laptop

[You-Sheng Yang]

BugLink: https://bugs.launchpad.net/bugs/1861610

[Impact]
Touchpad function unavailable on some platforms with new ELAN touchpad
HIDs.

[Fix]
https://lore.kernel.org/linux-input/000201d5a8bd$9fead3f0$dfc07bd0$@emc.com.tw/
required to match these currently unsupported IDs.

[Test Case]
1. check if platform is affected, e.g. with ELAN0634:

   $ sudo acpidump | grep -C3 ELAN
   2A060: 49 4E 54 31 70 0A 20 49 44 41 44 A4 84 53 42 46 INT1p.IDAD..SBF
   2A070: 53 53 42 46 49 00 5B 82 42 0E 54 50 44 32 08 5F SSBFI.[.B.TPD2._
   2A080: 41 44 52 00 08 49 44 41 44 00 08 48 49 44 32 00 ADR..IDAD..HID2.
   2A090: 08 5F 48 49 44 0D 45 4C 41 4E 30 36 33 34 00 08 ._HID.ELAN0634..
   2A0A0: 5F 43 49 44 0D 50 4E 50 30 43 35 30 00 08 5F 55 _CID.PNP0C50.._U
   2A0B0: 49 44 01 14 4B 04 5F 44 53 4D 04 A0 3C 93 68 11 ID..K._DSM..<.h.
   2A0C0: 13 0A 10 F7 F6 DF 3C 67 42 55 45 AD 05 B3 0A 3D ......<gBUE....=

2. check if touchpad then appear in /proc/bus/input/devices when
applied.

[Regression Potential]
Low. Only add new IDs for currently unsupported platforms.

Dave.Wang (1):
  Input: elan_i2c - add more hardware ID for Lenovo laptop

 include/linux/input/elan-i2c-ids.h | 7 +++++++
 1 file changed, 7 insertions(+)

-- 
2.25.1