Re: [PATCH 0/3] ARM: davinci: ohci-da8xx: model the vbus GPIO as a fixed regulator

[Alan Stern]

On Thu, 28 Mar 2019, Sekhar Nori wrote:

> >> Can you document why the current solution is not optimal? Is it to make
> >> future device-tree conversion for these boards easier? Or?
> >>
> > 
> > It's sub-optimal from the HW modeling in SW PoV - it is in fact a
> > regulator enabled/disabled by a GPIO. Also: it's code duplication as
> > currently we check if the vbus GPIO exists and then use it or check if
> > the regulator exists and use this as the second choice. The third
> > patch actually shrinks the driver.
> 
> I see now that the driver supports controlling the VBUS gpio as
> regulator already. Something I should have caught in review last time
> around.
> 
> I agree this patch is an improvement. Lets see what Alan feels.

I'm not an expert on this stuff, but the patch looks reasonable.  
However, I do wish that in the devm_request_threaded_irq() call, the 
indentation of the continuation lines was left unchanged.

Alan Stern

> Also, reg_enabled member of da8xx_ohci_hcd structure seems to be pretty
> useless considering regulator API already has use counting. Can you take
> a look and remove that too as an added bonus.
> 
> Thanks,
> Sekhar