[coreboot-gerrit] Patch merged into coreboot/master: pcengines/apu1: Add ACPI led, button and GPIO devices.

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit 2a38551bb72765d37946c6f89fd48c0e9eec4580
Author: Tobias Diedrich <ranma+coreboot at tdiedrich.de>
Date:   Sat Jun 13 13:29:50 2015 +0200

    pcengines/apu1: Add ACPI led, button and GPIO devices.
    
    Provide ACPI devices with devicetree-compatible annotations for the
    three leds and the button of the APU1, as well as the GPIO driver.
    
    This will cause the Linux kernel to automatically load the following
    modules:
      leds_gpio (CONFIG_LEDS_GPIO)
      gpio_keys_polled (CONFIG_KEYBOARD_GPIO_POLLED)
      gpio_sb8xx (CONFIG_GPIO_SB8XX)
    
    See
    http://events.linuxfoundation.org/sites/events/files/slides/ACPI_vs_DT.pdf
    and https://lwn.net/Articles/612062/ for some more information on how
    the PRP0001 HID works.
    
    To make this usable a Linux GPIO driver for the AMD chipset is also
    required, which I am currently working on, but have not submitted
    upstream yet.
    
    Leds have been named after the convention in
    Documentation/leds/leds-class.txt:
    LED Device Naming
    =================
    Is currently of the form:
    "devicename:colour:function"
    
    For comparison, on an OpenWRT device:
    GPIOs 0-21, ath79:
     gpio-1   (tp-link:green:usb   ) out hi
     gpio-2   (tp-link:green:system) out lo
     gpio-3   (reset               ) in  hi
     gpio-5   (tp-link:green:qss   ) out lo
     gpio-7   (qss                 ) in  hi
     gpio-9   (tp-link:green:wlan  ) out lo
     gpio-18  (rtl8366rb           ) in  hi
     gpio-19  (rtl8366rb           ) in  hi
    
    On the apu1:
    GPIOs 288-511, platform/PRP0001:00, AMD SB8XX/SB9XX/A5X/A8X GPIO driver:
     gpio-475 (switch1             ) in  hi
     gpio-477 (apu1:green:led1     ) out hi
     gpio-478 (apu1:green:led2     ) out hi
     gpio-479 (apu1:green:led3     ) out hi
    
    Change-Id: I956ee92d9d98ef27a83ccb30d314543bd8634f2c
    Signed-off-by: Tobias Diedrich <ranma+coreboot at tdiedrich.de>
    Reviewed-on: http://review.coreboot.org/10540
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel <paulepanter at users.sourceforge.net>
    Reviewed-by: Kyösti Mälkki <kyosti.malkki at gmail.com>


See http://review.coreboot.org/10540 for details.

-gerrit