Re: Need help for DT GPIO probing

Re: Need help for DT GPIO probing

[Linus Walleij]

On Fri, Jul 12, 2013 at 4:05 PM, Soumya Sutar <soumyasutar@gmail.com> wrote:

> Hi Linus,
>
> I am facing DT GPIO probing problem same as below link.
> http://us.generation-nt.com/answer/gpio-crashed-when-not-using-help-208346861.html
>
> Could you know any patch is available for this issues or still we need to
> use gpio_request() in driver.

Please ask questions like this on the mailing lists and include
the OMAP GPIO maintainers (Santosh & Kevin).

And the answer is yes, all GPIO lines you are using need to
be requested by the driver.

Yours,
Linus Walleij

Re: Need help for DT GPIO probing

[Javier Martinez Canillas]

Hi Soumya

On Saturday, July 20, 2013, Linus Walleij wrote:
>
> On Fri, Jul 12, 2013 at 4:05 PM, Soumya Sutar <soumyasutar@gmail.com> wrote:
>
> > Hi Linus,
> >
> > I am facing DT GPIO probing problem same as below link.
> > http://us.generation-nt.com/answer/gpio-crashed-when-not-using-help-208346861.html
> >
> > Could you know any patch is available for this issues or still we need to
> > use gpio_request() in driver.
>

Yes, Linus W has already queued some patches for gpio-omap on the
for-next branch of his linux-gpio tree [1] that solves this issue.

Take a look to commit b4419e1a ("gpio/omap: auto request GPIO as input
if used as IRQ via DT") although this patch depends on others so you
should merge the whole branch to make it work.

Linus, are you still planing to send this patches as fixes for the
v3.11 -rc cycle or did you decide to wait for v3.12?

>
> Please ask questions like this on the mailing lists and include
> the OMAP GPIO maintainers (Santosh & Kevin).
>
> And the answer is yes, all GPIO lines you are using need to
> be requested by the driver.
>
> Yours,
> Linus Walleij
> --

Thanks a lot and best regards,
Javier

[1]:  https://git.kernel.org/cgit/linux/kernel/git/linusw/linux-gpio.git/log/?h=for-next
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Re: Need help for DT GPIO probing

[Linus Walleij]

On Sun, Jul 21, 2013 at 6:54 AM, Javier Martinez Canillas
<martinez.javier@gmail.com> wrote:

> Linus, are you still planing to send this patches as fixes for the
> v3.11 -rc cycle or did you decide to wait for v3.12?

It will go into the v3.11 RC:s.

I've just been slow due to the current heatwave over northern Europe...

Yours,
Linus Walleij

Re: Need help for DT GPIO probing

[Javier Martinez Canillas]

On Sunday, July 21, 2013, Linus Walleij wrote:
>
> On Sun, Jul 21, 2013 at 6:54 AM, Javier Martinez Canillas
> <martinez.javier@gmail.com> wrote:
>
> > Linus, are you still planing to send this patches as fixes for the
> > v3.11 -rc cycle or did you decide to wait for v3.12?
>
> It will go into the v3.11 RC:s.
>

Great, thanks a lot for your help!

> I've just been slow due to the current heatwave over northern Europe...
>

Haha, yes weather has been even worst here in southern Europe

> Yours,
> Linus Walleij

Best regards,
Javier

Re: Need help for DT GPIO probing

[Santosh Shilimkar]

On Sunday 21 July 2013 07:10 AM, Linus Walleij wrote:
> On Sun, Jul 21, 2013 at 6:54 AM, Javier Martinez Canillas
> <martinez.javier@gmail.com> wrote:
> 
>> Linus, are you still planing to send this patches as fixes for the
>> v3.11 -rc cycle or did you decide to wait for v3.12?
> 
> It will go into the v3.11 RC:s.
> 
Thanks Linus. IIRC, off-list I pointed out the same patch-set
to Soumya.

Regards,
Santosh