TPS65023 integration with iMX6ull

[ankurgohel]

Hi ,

I am trying to replace the PFUZE3001 PMIC with TPS65023 PMIC for iMX6ULL. But I am getting issues. 

Changes are done in the kernel(4.9.88):

1. Update the dts as per the Documentation/devicetree/bindings/regulator/tps65023.txt file. 

2. Enable the PMIC in config using CONFIG_REGULATOR_TPS65023=y

Error message:

i2c i2c-0: IMX I2C adapter registered
i2c i2c-0: can't use DMA, using PIO instead.
vdd_mpu: failed to get the current voltage(-6)
tps65023 3-0048: failed to register tps65023
i2c i2c-3: IMX I2C adapter registered
i2c i2c-3: can't use DMA, using PIO instead.

Here I have confirmed that the HW connection is good and PMIC is responding at the time of the u-boot communication. 

Any direction on fixing this issue?

iMX6ULL iMX6UL  

[Sanket_Parekh]

Hi @ankurgohel 

vdd_mpu: failed to get the current voltage(-6)

Error code -6 means

ENXIO

No such device or address

It seems some problem is there with I2C slave address. Can you please check the available I2C slave devices using command "i2cdetect -y <Bus number>".

Thanks & Regards.

Sanket Parekh