Hi Andra, On Fri, Jul 19, 2019 at 7:48 AM andradanciu1997 <andradanciu1997@xxxxxxxxx> wrote: > + pmic: pmic@4b { > + reg = <0x4b>; > + compatible = "rohm,bd71837"; > + /* PMIC BD71837 PMIC_nINT GPIO1_IO12 */ > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_pmic>; > + clocks = <&pmic_osc>; > + clock-names = "osc"; > + clock-output-names = "pmic_clk"; > + interrupt-parent = <&gpio1>; > + interrupts = <3 GPIO_ACTIVE_LOW>; > + interrupt-names = "irq"; > + > + regulators { > + #address-cells = <1>; > + #size-cells = <0>; #address-cells and #size-cells are not needed and they cause warnings with W=1: DTC arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dtb arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dts:77.14-196.5: Warning (avoid_unnecessary_addr_size): /soc@0/bus@30800000/i2c@30a20000/pmic@4b/regulators: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property Please remove them.