4 LEDs on IGEPv2 board are not initialized/working

SRU Justification:

Impact: This patch is part of a series of fix for the IGEPv2. The board features 4 LED that must be declared and linked to GPIOs.

Fix: The LEDs are initialized and controlled via the LED class if CONFIG_LEDS_GPIO is selected
or using the General Purpose Input/Output (GPIO) interface if CONFIG_LEDS_GPIO is not selected. This patch depends on [PATCH 1/6] of the same patch set, applied to BugLink: https://bugs.launchpad.net/bugs/651589 .

Testcase: Without this patch LEDs are simply not working.

Accepted linux-linaro into maverick-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Accepted linux into maverick-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed' to 'verification-done'.

If verification is not done by Thursday, November 11, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug was fixed in the package linux-linaro - 2.6.35-1008.15

---------------
linux-linaro (2.6.35-1008.15) maverick-proposed; urgency=low

  [ Robert Nelson ]

  * SRU: Fix DVI for Beagle xM rev A3
    - LP: #663642

linux-linaro (2.6.35-1008.14) maverick-proposed; urgency=low

  [ Andy Whitcroft ]

  * reduce disk usage during buildd builds
    - LP: #645653

  [ Enric Balletbo i Serra ]

  * ARM: igepv2: Adding support for VBUS and overcurrent
    - LP: #651589
  * ARM: igepv2: Fix and improve LED handling
    - LP: #654582
  * ARM: igepv2: Introduce function to dectect HW version
    - LP: #654586
  * ARM: igepv2: Fix handling of GPIOs for WLAN-BT combo
    - LP: #654590
  * ARM: igepv2: Add i2c eeprom driver to read EDID
    - LP: #654594
  * ARM: igepv2: Remove VMMC2 regulator
    - LP: #654595

  [ Maurus Cuelenaere ]

  * SAUCE: ARM: OMAP3: Add S-Video output to IGEPv2 board
    - LP: #607250

  [ Upstream Stable ]
  * Linux 2.6.35.7

  [ Upstream MMC updates ]

  * mmc: recognize CSD structure
  * mmc: split mmc_sd_init_card()
  * mmc: implement SD-combo (IO+mem) support
  * sdhci: remove useless set_clock() check
  * sdhci: 8-bit data transfer width support
  * sdhci: don't assign mmc->caps at SDHCI directly
  * mmc: only set blockaddressed for > 2GiB cards
  * mmc: omap: fix for bus width which improves SD card's peformance.
  * sdhci-pltfm: switch to module device table matching
  * sdhci-pltfm: reorganize Makefile entries to support SoC devices
  * sdhci-pltfm: add support for CNS3xxx SoC devices
  * omap hsmmc: fix processing of all dma interrupts as block completion
  * sdhci: add regulator support
  * sdhci: add no hi-speed bit quirk support
  * mmc: avoid getting CID on SDIO-only cards
  * omap_hsmmc: remove unused local `state'
  * omap hsmmc: fix a racing case between kmmcd and omap_hsmmc_suspend
  * drivers/mmc/host/imxmmc.c: adjust confusing if indentation
  * mmc: sdhci-pltfm: Add structure for host-specific data
  * mmc: sdhci-pltfm: move .h file into appropriate subdir
  * mmc: sdhci: introduce get_ro private write-protect hook
  * mmc: sdhci_pltfm: pass more data on custom init call
  * mmc: sdhci-of-esdhc: factor out common stuff
  * mmc: sdhci-pltfm: add -pltfm driver for imx35/51
  * mmc: quirk fix for timeout problem
  * babbage: esdhc device registration
  * babbage: update mx51_defconfig
    - LP: #656966

  [ Upstream ARM fixes ]

  * Make PTRACE_SINGLESTEP work with user helpers
  * ARM: fix section mismatch warnings in Versatile Express
  * ARM: use memblock to remove memory from available memory
  * video: omap: vram: remove from normal memory
    - LP: #627779

  [ John Rigby ]
  * LINARO: update configs
    - LP: #659799

linux-linaro (2.6.35-1007.13) maverick; urgency=low

  [ Upstream Ubuntu ]

  * Ubuntu-2.6.35-22.33
  * Ubuntu-2.6.35-22.34

  [ Upstream ARM Fixes ]

  * ARM: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile
  * ARM: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile
  * ARM: add a vma entry for the user accessible vector page
  * ARM: plug a race with the alignment trap handler
  * arm: fix really nasty sigreturn bug
  * ARM: prevent multiple syscall ...

Tested on:
ubuntu@ubuntu:~$ uname -a
Linux ubuntu 2.6.35-1008-linaro-omap #15-Ubuntu Fri Oct 22 11:56:29
UTC 2010 armv7l GNU/Linux

ubuntu@ubuntu:/sys/class/leds$ ls /sys/class/leds/
gpio-led:green:d0 gpio-led:green:d1 gpio-led:red:d0 gpio-led:red:d1

root@ubuntu:/sys/class/leds# echo 1 > gpio-led\:green\:d0/brightness
root@ubuntu:/sys/class/leds# echo 0 > gpio-led\:green\:d0/brightness

root@ubuntu:/sys/class/leds# echo 0 > gpio-led\:green\:d1/brightness
root@ubuntu:/sys/class/leds# echo 1 > gpio-led\:green\:d1/brightness

root@ubuntu:/sys/class/leds# echo 0 > gpio-led\:red\:d0/brightness
root@ubuntu:/sys/class/leds# echo 1 > gpio-led\:red\:d0/brightness

root@ubuntu:/sys/class/leds# echo 1 > gpio-led\:red\:d1/brightness
root@ubuntu:/sys/class/leds# echo 0 > gpio-led\:red\:d1/brightness

2010/11/8 Launchpad Bug Tracker <email address hidden>:
> This bug was fixed in the package linux-linaro - 2.6.35-1008.15
>
> ---------------
> linux-linaro (2.6.35-1008.15) maverick-proposed; urgency=low
>
>  [ Robert Nelson ]
>
>  * SRU: Fix DVI for Beagle xM rev A3
>    - LP: #663642
>
> linux-linaro (2.6.35-1008.14) maverick-proposed; urgency=low
>
>  [ Andy Whitcroft ]
>
>  * reduce disk usage during buildd builds
>    - LP: #645653
>
>  [ Enric Balletbo i Serra ]
>
>  * ARM: igepv2: Adding support for VBUS and overcurrent
>    - LP: #651589
>  * ARM: igepv2: Fix and improve LED handling
>    - LP: #654582
>  * ARM: igepv2: Introduce function to dectect HW version
>    - LP: #654586
>  * ARM: igepv2: Fix handling of GPIOs for WLAN-BT combo
>    - LP: #654590
>  * ARM: igepv2: Add i2c eeprom driver to read EDID
>    - LP: #654594
>  * ARM: igepv2: Remove VMMC2 regulator
>    - LP: #654595
>
>  [ Maurus Cuelenaere ]
>
>  * SAUCE: ARM: OMAP3: Add S-Video output to IGEPv2 board
>    - LP: #607250
>
>  [ Upstream Stable ]
>  * Linux 2.6.35.7
>
>  [ Upstream MMC updates ]
>
>  * mmc: recognize CSD structure
>  * mmc: split mmc_sd_init_card()
>  * mmc: implement SD-combo (IO+mem) support
>  * sdhci: remove useless set_clock() check
>  * sdhci: 8-bit data transfer width support
>  * sdhci: don't assign mmc->caps at SDHCI directly
>  * mmc: only set blockaddressed for > 2GiB cards
>  * mmc: omap: fix for bus width which improves SD card's peformance.
>  * sdhci-pltfm: switch to module device table matching
>  * sdhci-pltfm: reorganize Makefile entries to support SoC devices
>  * sdhci-pltfm: add support for CNS3xxx SoC devices
>  * omap hsmmc: fix processing of all dma interrupts as block completion
>  * sdhci: add regulator support
>  * sdhci: add no hi-speed bit quirk support
>  * mmc: avoid getting CID on SDIO-only cards
>  * omap_hsmmc: remove unused local `state'
>  * omap hsmmc: fix a racing case between kmmcd and omap_hsmmc_suspend
>  * drivers/mmc/host/imxmmc.c: adjust confusing if indentation
>  * mmc: sdhci-pltfm: Add structure for host-specific data
>  * mmc: sdhci-pltfm: move .h file into appropriate subdir
>  * mmc: sdhci: introduce get_ro private write-protect hook
>  * mmc: sdhci_pltfm: pass more data on custom init call
>  * mmc: sdhci-of-esdhc: factor out common stuff
>  * mmc: sdhci-pltfm: add -pltfm driver for imx35/51
>  * mmc: quir...

I've tested and verified the Maverick proposed kernel from http://launchpadlibrarian.net/58060627/linux-image-2.6.35-1008-linaro-omap_2.6.35-1008.15_armel.deb does resolve and fix this bug.

Tests were made on IGEPv2 board and Beagle XM (to assure no regression).

kernel config......
        CONFIG_LEDS=y
        CONFIG_MAC80211_LEDS=y
        CONFIG_RFKILL_LEDS=y
        CONFIG_RTL8187_LEDS=y
        CONFIG_AR9170_LEDS=y
        CONFIG_B43_LEDS=y
        CONFIG_B43LEGACY_LEDS=y
        CONFIG_P54_LEDS=y
        CONFIG_RT2X00_LIB_LEDS=y
        CONFIG_JOYSTICK_XPAD_LEDS=y
        CONFIG_HID_PICOLCD_LEDS=y
        CONFIG_NEW_LEDS=y
        CONFIG_LEDS_CLASS=m
        CONFIG_LEDS_88PM860X=m
        CONFIG_LEDS_PCA9532=m
        CONFIG_LEDS_GPIO=m
        CONFIG_LEDS_GPIO_PLATFORM=y
        CONFIG_LEDS_LP3944=m
        CONFIG_LEDS_PCA955X=m
        CONFIG_LEDS_WM831X_STATUS=m
        CONFIG_LEDS_WM8350=m
        CONFIG_LEDS_DA903X=m
        CONFIG_LEDS_DAC124S085=m
        CONFIG_LEDS_REGULATOR=m
        CONFIG_LEDS_BD2802=m
        CONFIG_LEDS_LT3593=m
        CONFIG_LEDS_ADP5520=m
        CONFIG_LEDS_MC13783=m
        CONFIG_LEDS_TRIGGERS=y
        CONFIG_LEDS_TRIGGER_TIMER=m
        CONFIG_LEDS_TRIGGER_HEARTBEAT=m
        CONFIG_LEDS_TRIGGER_BACKLIGHT=m
        CONFIG_LEDS_TRIGGER_GPIO=m
        CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

IGEPv2 board....
        cd /sys/class/leds
        echo 0 > gpio-led\:green\:d0/brightness
        echo 0 > gpio-led\:green\:d1/brightness
        echo 0 > gpio-led\:red\:d0/brightness
        echo 0 > gpio-led\:red\:d1/brightness
        # the gpio-led:green:d1 led remains on...on with value of 0

        echo 1 > gpio-led\:green\:d0/brightness
        echo 1 > gpio-led\:green\:d1/brightness
        echo 1 > gpio-led\:red\:d0/brightness
        echo 1 > gpio-led\:red\:d1/brightness
         # all leds turn on. However, gpio-led:green:d1 turns off

Beagle XM board....
        cd /lib/modules/2.6.35-1008-linaro-omap/kernel/drivers/leds
        insmod led-class.ko
        insmod leds-gpio.ko

        cd /sys/class/leds
        echo 0 > beagleboard::pmu_stat/brightness
        echo 0 > beagleboard::usr0/brightness
        echo 0 > beagleboard::usr1/brightness
        # all leds are now off...

        echo 1 > beagleboard::pmu_stat/brightness
        echo 1 > beagleboard::usr0/brightness
        echo 1 > beagleboard::usr1/brightness
        # all leds are now on....

Migrated to bugzilla: https://bugs.linaro.org/show_bug.cgi?id=555

Maverick has long since stopped to receive any updates. Marking the Maverick task for this ticket as "Won't Fix".