lkml.org 
[lkml]   [2010]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: gpiolib: irq functions not implemented on x86
Date
Are you sure that I am the intended recipient of this mail?

I'm not involved in the GPIO subsystem at all.


On Thursday 25 March 2010 20:36:04 Jérôme Oufella wrote:
> Hi,
>
> I wrote a gpiolib implementation for Technologic Systems TS-5500 boards (x86)
> custom GPIO lines. Some of their GPIO lines are directly hooked to CPU (ElanSC520)
> GPIRQ lines, so they can trigger IRQs.
>
> However, looking at arch/x86/include/asm/gpio.h:
> /*
> * Not implemented, yet.
> */
> static inline int gpio_to_irq(unsigned int gpio)
> {
> return -ENOSYS;
> }
>
> gpio_to_irq()/irq_to_gpio() are not defined on x86 yet.
>
> Q: Is there a reason not to have it call gpiolib's __gpio_to_irq(), as done
> for other gpiolib functions defined here ? such as
>
> - return -ENOSYS;
> + return __gpio_to_irq(gpio);
>
>
> Thanks
> Jerome Oufella
>
>

--
Greetings, Michael.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2010-03-25 23:15    [from the cache]
©2003-2011 Jasper Spaans