RE: [PATCH v4 5/8] MFD: ti_am335x_tscadc: Add DT support

[Patil, Rachna]

Hi Koen,

> <SNIP>
> > > > Since AM335x is DT only, why is there a platform data codepath and why is it the first branch it tries? And I guess the next question is related to the first: why doesn't it work when used with DT? When I copy over the nodes from the evm.dts to my board I get "tsc tsc: Missing platform data" in dmesg.
> > > 
> > > This IP came up 1st on AM335x, but it is not platform dependent. The driver can be used on other platforms where-in DT is not supported.
> > > According to the maintainers platform data takes precedence over DT. Hence the order.
> > > 
> > 
> > Rachana,
> > 
> > I see no point adding support for platform_data when you know that none of older platforms are going to use this driver and all future platforms _must_ follow device-tree model.
> > 
> > So I agree that you should remove board file dependency from the driver.
> 
> Ok. I will remove support for platform data in the next version of patches.
> 
> > 
> > 
> > > I do not see "Missing platform data" error msg in the latest driver. I am not able to trace from where this got populated.
> > > 
> > 
> > Can you share the branch which you have tested?
> 
> https://github.com/patilrachna/linux/tree/v3.8_rc3_MFD_TSCADC_DT-v2

Did you get a chance to test this branch?
And can you also share your branch, on which you observed the issue.

Regards,
Rachna

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