AnsweredAssumed Answered

OV5640 mipi i2c access error with 3.10.53 kernel

Question asked by Jerome Gendron on Feb 25, 2015
Latest reply on Apr 23, 2015 by andy clayton

Hi all,

Yesterday I upgraded my kernel from 3.10.17_1.0.0_ga (boundary devices github) to 3.10.53_1.1.0_ga-pass1 (always boundary devices github).

But unfortunately I can't use my OV5640 mipi camera with the newest kernel (it works with the 3.10.17) : I've got an i2c access error :

ov5642_read_reg:write reg error:reg=300a

I made some logs in the imx i2c driver (driver/i2c/busses/i2c-imx.c), and the problem is with the i2c_imx_acked() function, in the beginning of the i2c_imx_write() function.

Is anyone know what is the problem ? With the same board and 3.10.17 kernel it works !

Thank you for your help !