Our custom hardware design uses a PF8100 PMIC with the output from LDO3 driving other parts of the system. LDO3 is disabled in the OTP fuses, but we would like to enable LDO3 at 3.3V from u-boot.
The SDA and SCL on the PF8100 are connected to PMIC_I2C_SDA and PMIC_I2C_SCL on the i.MX8.
I think I know what needs to happen on the i2c between the i.MX8 and the PMIC by reading this data sheet:
However I'm not sure how to use the pmic_i2c from the i.MX8.
Is there a u-boot device driver we could use to enable the PMIC through the u-boot device tree?
If not, how do I access the pmic_i2c in the i.MX8 to communicate with the PMIC?