Messages in this thread | | | Date | Fri, 11 Sep 2015 20:53:12 +0200 | From | Wolfram Sang <> | Subject | Re: [PATCH-v5 RESEND 2/5] i2c: pxa: enable/disable i2c module across msg xfer |
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On Mon, Aug 24, 2015 at 11:29:35AM +0530, Vaibhav Hiremath wrote: > From: Yi Zhang <yizhang@marvell.com> > > Enable i2c module/unit before transmission and disable when it > finishes. > > why? > It's because the i2c bus may be disturbed if the slave device, > typically a touch, powers on.
I am not convinced, "may disturb" is too weak for me. It would need a way more detailed description of the problem which makes clear that this mechanism is the only way to go forward.
Can't you use Runtime PM for that?
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