[meta-intel] gpio sus configuration as interrupt

[Darren Hart]

From:  Kumar Nagaraj <kumarn at hcl.com>
Date:  Friday, May 9, 2014 at 16:11
To:  Chiau Ee Chew <chiau.ee.chew at intel.com>, Darren Hart
<dvhart at linux.intel.com>
Cc:  "meta-intel at yoctoproject.org" <meta-intel at yoctoproject.org>
Subject:  Re: [meta-intel] gpio sus configuration as interrupt


>Chiau,
>                We have a developed custom board using BYT-I processor &
>have assigned GPIO_SUS[0],GPIO_SUS[1]Š.GPIO_SUS[4] to switches or buttons.
>I configured these GPIOs as irqs using
>/mmc/host/sdhc-pci.c as reference.No error returned when configuring
>gpio_to_irq.I
> registered a single interrupt handler for all these gpios. However my
>interrupt handler did not get invoked when the buttons are pressed. Can
>you provide the reasons for this?
> 
>Following is the  gpio debugfs dump obtained using command cat
>/sys/kernel/debug/gpio
> 
>GPIOs     50-65,  i2c/5-00 27,pca9535,can sleep
>GPIOs 82-125, platform/byt_gpio.2,byt_gpio.2
>Gpio-0      in    IO pad-29     offset :0x1d0    mux:0
>Gpio-1      in    IO pad-33     offset :0x210    mux:0
>Gpio-2      in    IO pad-30     offset :0x1e0    mux:0
>Gpio-3      in    IO pad-31     offset :0x1f0    mux:0
>Gpio-4      in    IO pad-32     offset :0x200   mux:0



What is the output of /proc/interrupts. Do you see your interrupts listed
there?

--
Darren