Re: [PATCH V2 5/5] gpio/gpio-stmpe: ADD support for stmpe variant 801

From: Samuel Ortiz
Date: Mon Dec 12 2011 - 09:15:58 EST


Hi Viresh,

On Tue, Nov 22, 2011 at 09:18:54AM +0530, Viresh Kumar wrote:
> On 11/21/2011 8:21 PM, Mark Brown wrote:
> >> > I assumed stmpe_set_bits will only affect bits which are 1
> >> > in mask and i was wrong. :(
> > That does look like a straight bug in stmpe_set_bits() which ought to be
> > fixed regardless of anything else.
> >
>
> I think so. I will fix it in a separate patch.
>
> >>> > > (2) for other devices, adds an an unnecessary read (within stmpe_set_bits()),
> >>> > > which wasn't there before.
> >> > Correct.
> >>> > > Please rework to something like:
> > Looking at the code in stmpe.c it might be as well to convert to regmap
> > which would if nothing else save a bunch of custom code in the driver
> > and let you use the cache code to eliminate the read. Probably that
> > will help eliminate reads in other places too.
>
> Ya, i already got this feedback from Rabin. I am a bit busy right now and so
> requested sameo to accept this patchset as it is. I will update drivers to use
> regmap as soon as i get some time.
Ok, so I reverted your first 2 patches patchset since it seems it was
problematic. Now, I think Rabin's concern on your patch #5 seems valid, and
I'd like you to fix it before applying this patchset.

Cheers,
Samuel.

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Intel Open Source Technology Centre
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