[PATCH 08/10] dt-bindings: input: touchscreen: st,stmfts: Introduce STM FTS5

David Heidelberg david at ixit.cz
Sun Mar 15 10:09:14 PDT 2026


On 01/03/2026 23:40, Dmitry Baryshkov wrote:

[...]

>> +    then:
>> +      properties:
>> +        switch-gpio:
>> +          description: Switch between SLPI and AP mode.
> 
> This doesn't sounds like the GPIO on the touchscreen, more like the
> external schematic component. If it need sto be turned to one position,
> it might be better to use GPIO hog for that.

Right now yes, but the GPIO serves to switching between SLPI and AP mode at 
runtime, see [1]

The driver lack supports for SLPI, but at moment when SLPI support lands, we 
should be able do something like:

-> device starts, touchscreen works
-> screen goes to sleep, but instead of powering off touchscreen, it switches to 
SLPI mode
-> user taps at touchscreen, device wakes up

Thus I think we need to support this GPIO in the driver.

David

> 
>> +
>> +      required:
>> +        - switch-gpio
>> +
>>   examples:
>>     - |
>>       #include <dt-bindings/interrupt-controller/irq.h>
>>
>> -- 
>> 2.51.0
>>
>>
> 

-- 
David Heidelberg




More information about the linux-arm-kernel mailing list