Am 14.03.2014 12:02, schrieb Linus Walleij:
On Fri, Mar 14, 2014 at 11:08 AM, Alexander Holler <holler@xxxxxxxxxxxxx> wrote:
Am 11.03.2014 11:15, schrieb Linus Walleij:
On Wed, Mar 5, 2014 at 12:21 PM, Alexander Holler <holler@xxxxxxxxxxxxx> wrote:
The driver missed an of_xlate function to translate gpio numbers
as found in the DT to the correct chip and number.
While there I've set #gpio_cells to a fixed value of 2.
I've used gpio-pxa.c as template for those changes and tested my changes
successfully on a da850 board using entries for gpio-leds in a DT. So I didn't
reinvent the wheel but just copied and tested stuff.
Thanks to Grygorii Strashko for the hint to the existing code in gpio-pxa.
Signed-off-by: Alexander Holler <holler@xxxxxxxxxxxxx>
Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
This v2 version applied, thanks!
Thanks, but actually that should have been a fix for 3.14 with which the
OF functionality for davinci gpio gets introduced. I assum with the
patch in for-next, 3.14 will appear with that functionality broken and
it will become a candidate for -stable.
I just get the impression that DT support for DaVinci in v3.14 is so risky
and unstable that noone except those implementing it (i.e. you) is really
using it, is that correct?
Yes. DT support for DaVinci is still incomplete and I don't think there
are much people out there which already try to use it. Nevertheless is
using DT a much easier way (and more future-proof) than patching
board-files, if a board isn't one of those few supported dev-boards and
needs different configurations.
In that case it is hardly a fix that we need to rush out to the entire world.
Hmm, I think it's better to send something working and tested to world,
than something untested and non-working.
And especially things like pinctrl and gpio are fundamental to even try
to use DT. E.g. in my case I didn't even try to use DT for DaVinci
because it doesn't make sense without support for DT in gpio. And now
people will get promised but broken support for gpio in 3.14, which
might cost a lot of time, if someone tries to use it.
And I thought the reason for -rc is actually to fix bugs. But I never
understood the magical ways and timings patches make their way into
mainline. ;)
Regards,
Alexander Holler
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