backport of driver for I2C on Sunrisepoint PCH

Bug #1488388 reported by Jesse Sung
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
Fix Released
Undecided
Jesse Sung

Bug Description

Some newly released laptops talked to touchpad via I2C to provide advanced functions. The new Intel Skylake platform will use Sunrisepoint PCH, thus the I2C part needs to be enabled in order to have these touchpad supported.

Intel is still working on the driver, so far there are six versions:
v1: https://lkml.org/lkml/2015/3/31/255
v2: https://lkml.org/lkml/2015/5/25/298
v3: https://lkml.org/lkml/2015/6/1/429
v4: https://lkml.org/lkml/2015/6/15/160
v5: https://lkml.org/lkml/2015/7/6/317
v6: https://lkml.org/lkml/2015/7/27/599

The mfd driver would support SPI, UART, and I2C on the PCH, but we'd focus on the I2C part of it. Since it's not yet in the mainline at this point, it won't make it to 4.2. We'll need to backport this driver to vivid and wily.

Changed in hwe-next:
status: In Progress → Fix Released
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