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About problem of Rrk3399's I2C being not able to driven up

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Posted at 8/8/2018 17:49:26     
We encountered some problem of Camera integration. Currently our R&D progress is blocked at I2C being not able to driven up。 Even we are using official open-source code project and Devicetree file:


The phenomenon is any enabled I2C bus, SDA SCLkeep low. If externally connect to pull-up circuit,SDA become high voltage,but SCL is still less than 0.2V.
Check dmesg, it reports: “rk3x-i2c ff120000.i2c: timeout, ipd: 0x00, state:1”


Does anyone know the reaosn?
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Posted at 8/13/2018 15:18:38     
I thought if you have not changed the code of the i2c2,  it might be the hardware broken.
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