Re: reset handling in am335x hwmod data

[Nishanth Menon <nm@ti.com>]

On 20:10-20130517, Peter Korsgaard wrote:
> >>>>> "Kevin" == Kevin Hilman <khilman@linaro.org> writes:
> 
>  >> In this case, we cannot reset that bank, otherwise Starter Kit will
>  >> never boot in mainline. Bad PCB design, I know, but it's not something
>  >> we can change now :-)
> 
>  Kevin> FWIW, we've seen this before (GPIO connected to PMIC reset is a
>  Kevin> fun one), and this is why we have omap_hwmod_no_setup_reset().
> 
> Yes, but there's no dts bindings for this, and from a quick test the
> reset handling happens before the device tree is probed.
I have the same issue with TPS62361 on Palmas -> GPIO controls the
voltage register supplying MPU, without any driver setting things up,
GPIO gets reset and obviously voltage value switches to an voltage where
device does not function.

Solution I am working on to solve this is [1]: snippet is part of a
patch that I am working on atm.

This is the right way to do it IMHO. Will allow the driver to exist when
HWMOD will be eventually replaced by some other framework.


[1]: http://pastebin.com/XPmAB1Zb

 
-- 
Regards,
Nishanth Menon