Re: [PATCH] ARM: dts: qcom: msm8960: expressatt: Add coreriver,tc360-touchkey

From: Rudraksha Gupta

Date: Thu Feb 19 2026 - 23:34:04 EST


Hello all,


Top posting for once (context below).

Not too sure what the next steps are to get the tm2 touchkey in. Should I resend the patch, contact someone else that can help provide guidance, or something else?


Adding Dmitry Torokhov (official maintainer) and Nick Reitemeyer (person who introduced this variant).


Thanks,

Rudraksha


On 12/16/25 04:59, Konrad Dybcio wrote:
On 12/9/25 8:10 AM, Rudraksha Gupta wrote:
Add the tc360 touchkey. It's unknown if this is the actual model of the
touchkey, as downstream doesn't mention a variant, but this works.

Link:
https://github.com/LineageOS/android_kernel_samsung_d2/blob/stable/cm-12.0-YNG4N/drivers/input/keyboard/cypress_touchkey_236/Makefile#L5
This driver mentions a register called CYPRESS_MODULE_VER - maybe
it could help confirm the model?

Konrad
[...]

When run on mainline, this is what was outputted:

samsung-expressatt:~$ cat /sys/bus/i2c/devices/0-0020/module_version
0x06
samsung-expressatt:~$ cat /sys/bus/i2c/devices/0-0020/fw_version
0x09


fw_version matches downstream ClockworkMod Recovery dmesg:

~ # dmesg | grep "FW Ver"
<3>[    2.201312] cypress_touchkey 16-0020: Touchkey FW Version: 0x09
<3>[    2.206317] cypress_touchkey 16-0020: Touchkey FW Version: 0x09, system_rev: 8


Unfortunately, I'm not to sure what the other variant versions are, so I will CC the driver's maintainers:

MODULE_AUTHOR("Beomho Seo <beomho.seo@xxxxxxxxxxx>");
MODULE_AUTHOR("Jaechul Lee <jcsing.lee@xxxxxxxxxxx>");
Sounds like the best idea, I have no clue either

Konrad