I2C Hang in imx6q SabreSD board

[divyardharan]

I am facing an I2C hang issue in my board.

This makes my touch hangs,I2C channel 3 is connected to touch controller in our board..

At some point touch is not responding.

When I run the I2C Detect program,seems like I2C of that particular channel hangs.

When I searched in Google I found some links which is similar to my issue. https://community.freescale.com/thread/316813

Dou you know how to reset the I2C Cahnnel.

http://www.spinics.net/lists/linux-i2c/msg06712.html​

Regards

Divya  R Dharan

[igorpadykov]

Hi Divya

if hang is caused by peripheral touch controller, one can try to generate

additional clocks manually in sw (configure i.MX6 lines as GPIOs), procedure

is described in many app notes on web, like below

http://www.analog.com/media/en/technical-documentation/application-notes/54305147357414AN686_0.pdf

Best regards

igor

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