• Trent Piepho's avatar
    leds: Add openfirmware platform device support · a7d878af
    Trent Piepho authored
    Add bindings to support LEDs defined as of_platform devices in addition to
    the existing bindings for platform devices.
    
    New options in Kconfig allow the platform binding code and/or the
    of_platform code to be turned on.  The of_platform code is of course only
    available on archs that have OF support.
    
    The existing probe and remove methods are refactored to use new functions
    create_gpio_led(), to create and register one led, and delete_gpio_led(),
    to unregister and free one led.  The new probe and remove methods for the
    of_platform driver can then share most of the common probe and remove code
    with the platform driver.
    
    The suspend and resume methods aren't shared, but they are very short.  The
    actual led driving code is the same for LEDs created by either binding.
    
    The OF bindings are based on patch by Anton Vorontsov
    <avorontsov@ru.mvista.com>.  They have been extended to allow multiple LEDs
    per device.
    Signed-off-by: default avatarTrent Piepho <tpiepho@freescale.com>
    Acked-by: default avatarGrant Likely <grant.likely@secretlab.ca>
    Acked-by: default avatarSean MacLennan <smaclennan@pikatech.com>
    Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>
    a7d878af
leds-gpio.c 6.9 KB