how do i change the frequency of i2c-2 on SAMA5D3?

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how do i change the frequency of i2c-2 on SAMA5D3?

Mon Apr 20, 2015 11:52 am

hi,
    for some reasons i need to slow down the speed of i2c-2, i had tried adding to <clock-frequency> property to dts, but it doesn't work.
    i am new to this device-tree 'method', don't know how to do it. please tell me if you have the answer.

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