[Bug 213579] Clevo NH55HJ (intel tigerlake) touchpad support (GPIO can't be used as IRQ)

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https://bugzilla.kernel.org/show_bug.cgi?id=213579

--- Comment #28 from wse@xxxxxxxxxxxxxxxxxxx ---
I found a schematic for the Clevo NH5xHP

According to that the touchpad is connected with 3 wires to the EC and with 3
wires to the CPU (and to vcc and gnd ofc):

TP_CLK -> GPF4/PS2CLK2/5VT (EC)
TP_DATA -> GPF5/PS2DAT2/5VT (EC)
TP_I2C_CLK -> BD21 -> GPP_C17/I2C0_SCL
TP_I2C_DAT -> BC22 -> GPP_C16/I2C0_SDA
LID_SW# -> GPB1/LID_SW# (EC)
TP_ATTN# -> BC48 -> GPP_R12/CLKOUT_48

Looking at
https://elixir.bootlin.com/linux/v5.13/source/drivers/pinctrl/intel/pinctrl-tigerlake.c
the CPU pins are:
PINCTRL_PIN(37, "CLKOUT_48"),
PINCTRL_PIN(121, "I2C0_SDA"),
PINCTRL_PIN(122, "I2C0_SCL"),

I hope this information helps.

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