Re: [PATCH v2 1/3] gpiolib: export descriptor-based GPIO interface

From: Linus Walleij
Date: Wed Oct 16 2013 - 04:11:19 EST


On Fri, Oct 11, 2013 at 8:14 PM, Alexandre Courbot <acourbot@xxxxxxxxxx> wrote:

> This patch exports the gpiod_* family of API functions, a safer
> alternative to the legacy GPIO interface. Differences between the gpiod
> and legacy gpio APIs are:
>
> - gpio works with integers, whereas gpiod operates on opaque handlers
> which cannot be forged or used before proper acquisition
> - gpiod get/set functions are aware of the active low state of a GPIO
> - gpio consumers should now include <linux/gpio/consumer.h> to access
> the new interface, whereas chips drivers will use
> <linux/gpio/driver.h>
>
> The legacy gpio API is now built as inline functions on top of gpiod.
>
> Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxx>

Typically I have applied the patch adding gpio_[un]lock_as_irq()
and it conflicts with this. And it requires adding gpiod_* accessors
for these functions too...

Would you mind rebasing this on top of my "devel" branch?

Sorry for the moving target, but after this I think we are ready to
merge the gpiod* interface.

Yours,
Linus Walleij
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