[SRU] [linux-oem] [PATCH 0/1] UBUNTU: SAUCE: Use I2C tansport for touchpad on Precision M5530

Timo Aaltonen tjaalton at ubuntu.com
Mon Feb 12 13:59:33 UTC 2018


On 01.02.2018 07:47, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1746661
> 
> [Impact]
> Touchpad on Precision M5530 uses PS/2 instead of I2C as its transport.
> 
> [Test Case]
> The touchpad binds to psmouse instead of i2c_hid.
> With the patch, the touchpad uses i2c_hid instead.
> 
> [Fix]
> LKML Link: https://lkml.org/lkml/2018/1/30/963
> The de facto standard, Windows, parse its DSDT as a term list. The DSDT
> table on Precision M5530 also designed that way, hence we should just
> respect that.
> Add a new quirk for this specific machine.
> I'll backport the patch for stable releases once it's upstreamed.
> 
> [Regression Potential]
> Low. This fix is limited to XPS 15 9570/Precision M5530. Also it's the
> "correct" way to do for this machine.
> 
> Kai-Heng Feng (1):
>   ACPI: Parse entire table as a term_list for Dell XPS 9570 and
>     Precision M5530
> 
>  drivers/acpi/bus.c | 40 +++++++++++++++++++++++++++++++++-------
>  1 file changed, 33 insertions(+), 7 deletions(-)
> 

The patch was not against linux-oem but maybe current upstream? I've
backported it though and applied to git.


-- 
t




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