[PATCH][GPIO] Add IRQ edge setter to gpiolib

Hi all, please find a patch that adds IRQ edge set-up mechanism to sysfs that can be called from the kernel. This functionality can be very useful for embedded systems, as it permits kernel to do GPIO set-up during boot stage. Configuration which defines pins behavior is often kept in NVRAM, and d

Re: [PATCH][GPIO] Add IRQ edge setter to gpiolib

Looping GPIO maintainers... On Fri, Oct 5, 2012 at 12:45 PM, Drasko DRASKOVIC wrote: > Hi all, > please find a patch that adds IRQ edge set-up mechanism to sysfs that > can be called from the kernel. > > This functionality can be very useful for embedded systems, as it > pe

Re: [PATCH][GPIO] Add IRQ edge setter to gpiolib

Hi Mark, thanks. I'll re-send it as a plain text in a separate e-mail. BR, Drasko On Fri, Oct 5, 2012 at 1:50 PM, Mark Brown wrote: > On Fri, Oct 05, 2012 at 01:09:13PM +0200, Drasko DRASKOVIC wrote: >> Looping GPIO maintainers... > > Please follow the patch s

[PATCH][GPIO] Add IRQ edge setter to gpiolib

Sep 17 00:00:00 2001 From: Drasko DRASKOVIC Date: Fri, 5 Oct 2012 11:59:47 +0200 Subject: [PATCH] [PATCH][GPIO] Add IRQ edge setter to gpiolib Signed-off-by: Drasko DRASKOVIC --- Documentation/gpio.txt |3 ++ drivers/gpio/gpiolib.c |

Re: [PATCH][GPIO] Add IRQ edge setter to gpiolib

On Fri, Oct 5, 2012 at 2:40 PM, Linus Walleij wrote: > On Fri, Oct 5, 2012 at 2:20 PM, Drasko DRASKOVIC > Why not put the above text into the patch commit blurb? OK, I can add this easily. Makes sense. > If I understand correctly the below more or less exports > struct irq_chip

HW timers question (clocksource vs event)

Hi all, I'd like to install one timer that provokes IRQ on timeout to measure IRQ latencies. I can see that in dw_apb_timer.c Linux driver that there is clocksource and event type of timers. Can someone please explain me what is really the difference between clocksource and event type of timers?

Re: [PATCH][GPIO] Add IRQ edge setter to gpiolib

Hi Grant, Thomas, do you see any potential problems with this patch? It adds sysfs interface to change / set-up trigger edge from the kernel (currently not possible). BR, Drasko On Fri, Oct 5, 2012 at 3:16 PM, Drasko DRASKOVIC wrote: > On Fri, Oct 5, 2012 at 2:40 PM, Linus Walleij >

Re: [PATCH][GPIO] Add IRQ edge setter to gpiolib

On Tue, Oct 9, 2012 at 2:00 PM, Linus Walleij wrote: > On Fri, Oct 5, 2012 at 3:16 PM, Drasko DRASKOVIC > wrote: >> [Me] >>> If I understand correctly the below more or less exports >>> struct irq_chip to userspace, >>> trying to hide it by instead ex