Hi Anson, On Wed, Dec 5, 2018 at 7:20 AM Anson Huang <anson.hu...@nxp.com> wrote: > > Add isl29023 light sensor support on i2c3 bus, the light > sensor's power is controlled by a fixed regulator, since > the isl29023 driver and most of other sensors on same > board like mag3110 and mma8451 do NOT support regulator > operation currently, they are all controlled by this > regulator, so this patch also adds the fixed regulator > support and make it always on. > > Signed-off-by: Anson Huang <anson.hu...@nxp.com> > --- > arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 34 > ++++++++++++++++++++++++++++++++++ > 1 file changed, 34 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi > b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi > index d7389b5..f96ae54 100644 > --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi > @@ -62,6 +62,19 @@ > gpio = <&gpio3 19 0>; > enable-active-high; > }; > + > + reg_sensor: regulator@4 {
I know that you followed the existing pattern for regulators in this file, but it is not recommended to put regulators under "simple-bus". I would suggest you to make a first patch of the series that removes all of the existing regulators from "simple-bus", then you add this series on top. Then this regulator becomes: reg_light_sensor: regulator-light-sensor { > + compatible = "regulator-fixed"; > + reg = <4>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_sensor_reg>; pinctrl_sensor_reg is too generic. You could use pinctrl_light_sensor_reg > + regulator-name = "sensor-supply"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + gpio = <&gpio2 31 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + regulator-always-on; > + }; > }; > > gpio-keys { > @@ -420,6 +433,15 @@ > interrupts = <7 2>; > wakeup-gpios = <&gpio6 7 0>; > }; > + > + isl29023@44 { Node names should be generic, so: light-sensor@44