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Linux/TPS659039-Q1: How to access pmic registers from linux user space

Stephan Karger
Intellectual 280 points
Part Number: TPS659039-Q1
Other Parts Discussed in Thread: AM5726

Tool/software: Linux

Hello,

we use a TPS659039 and a AM5726 on our custum board and our firmware is based on the TI-Linux SDK V3.3. On some devices I have the problem that the pmic send many interrupts to the processor. To find out the reason for these interrupts I would like to read the pmic registers from linux user space but the linux driver seems to reserve access to the I2C adresses 0x58, 0x59 and 0x5a. I cannot read at these adresses with i2cget.

Is there a possibility to access these registers from linux user space or does the driver provide more information about what causes these interrupts? Is it possible to unload the driver to access the registers?

Thanks. 

    Stephan