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

From: Konrad Dybcio
Date: Tue Dec 16 2025 - 11:28:26 EST


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