how do I configure the i2c host with clock stretching ?

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how do I configure the i2c host with clock stretching ?

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Luke-Hsieh
Contributor III

I'm trying to have TI gauge bq27542-g1 worked on imx8m nano EVK with pure Linux OS.

I was aware that i2c host must support i2c clock stretching to wait for slow slave response.

 

Can anyone share your experience any specific change in DTS or in the driver to support i2c clock stretching ?

 

 

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igorpadykov
NXP Employee
NXP Employee

Hi Luke

 

it is supported in hardware as described in sect.15.1.3.5 Clock stretching, no additional

dts settings are needed   i.MX 8M Nano Applications Processor Reference Manual

 

Best regards
igor

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Luke-Hsieh
Contributor III

Hi Igor,

 

Thanks for the confirmation!

I will give it a try when I receive the device which is a fuel gauge IC.

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igorpadykov
NXP Employee
NXP Employee

Hi Luke

 

it is supported in hardware as described in sect.15.1.3.5 Clock stretching, no additional

dts settings are needed   i.MX 8M Nano Applications Processor Reference Manual

 

Best regards
igor