GPIO LEDs in the Cyclone5 EBV SOCrates board have a unit name but no reg property. Indeed, GPIO LEDs do not need such a property. They do not need a unit name neither. This will trigger the following warnings when compiled with W=1: Node /gpio-leds/led@0 has a unit name, but no reg property Node /gpio-leds/led@1 has a unit name, but no reg property Node /gpio-leds/led@2 has a unit name, but no reg property The solution is to remove the unit name. In order to have unique node names, a rename is necessary. This should be harmless as all the LEDs have a 'label' property, hence their name do not derive from the node name and will stay the same after this patch. Signed-off-by: Florian Vaussard <florian.vaussard@xxxxxxxxxx> --- arch/arm/boot/dts/socfpga_cyclone5_socrates.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts b/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts index 8e3b017..53bf99e 100644 --- a/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts +++ b/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts @@ -60,18 +60,18 @@ &leds { compatible = "gpio-leds"; - led@0 { + led0 { label = "led:green:heartbeat"; gpios = <&porta 28 1>; linux,default-trigger = "heartbeat"; }; - led@1 { + led1 { label = "led:green:D7"; gpios = <&portb 19 1>; }; - led@2 { + led2 { label = "led:green:D8"; gpios = <&portb 25 1>; }; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html