Enable PWM output on Hikey

Hi guys !

I saw in the Low Speed connector documentation that a PWM output is available (pin 28 named BL_PWM_GPIO12_7), but I wasn’t able to enable it. I mean I didn’t found any node in the hi6220-hikey device tree or any driver that would be compatible.

Could you help me to use it ? I would like to know which driver I should use and how declare the device in the DTS.

Thanks !