• Jon Hunter's avatar
    ARM: dts: OMAP4: Fix ethernet IRQ for OMAP4 boards · e60f18d6
    Jon Hunter authored
    Commit ff5c9059 (ARM: dts: OMAP3+: Correct gpio #interrupts-cells
    property) updated the number of interrupt cells required for configuring
    gpios as interrupts for other devices (such as ethernet controllers).
    This update allowed the interrupt type (edge, level, etc) to be
    configured via device-tree (as described in the
    Documentation/devicetree/bindings/gpio/gpio-omap.txt).
    
    This broke ethernet support on the OMAP4 SDP board that defines a gpio
    as the ethernet IRQ because the interrupt type (level, edge, etc) was
    not getting configured correctly. This board use the ks8851 ethernet
    chip which has an active low interrupt. Fix this by defining the gpio
    interrupt as active-low in the device-tree binding.
    
    Please note that the OMAP4-VAR-SOM also uses the same ethernet
    controller and it is expected it will have the same problem. So the
    same fix is also applied to this board.
    Signed-off-by: default avatarJon Hunter <jon-hunter@ti.com>
    Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
    e60f18d6
omap4-var-som.dts 1.6 KB