Messages in this thread | | | Subject | Re: [PATCH-v5 RESEND 2/5] i2c: pxa: enable/disable i2c module across msg xfer | From | Vaibhav Hiremath <> | Date | Mon, 14 Sep 2015 10:37:08 +0530 |
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On Saturday 12 September 2015 12:23 AM, Wolfram Sang wrote: > 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. >
Hmm, Ok. Not sure what else I can bring up here.
> Can't you use Runtime PM for that? >
I haven't tried it though, I can give a try and check.
Thanks, Vaibhav
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