Hi Krzysztof On Sat, Jan 07, 2023 at 02:09:54PM +0100, Krzysztof Kozlowski wrote: > On 06/01/2023 21:39, Jacopo Mondi wrote: > > From: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> > > > > Add binding schema for the OmniVision OV8858 8 Megapixels camera sensor. > > > > Signed-off-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> > > Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > --- > > .../bindings/media/i2c/ovti,ov8858.yaml | 105 ++++++++++++++++++ > > 1 file changed, 105 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov8858.yaml > > > > diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov8858.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov8858.yaml > > new file mode 100644 > > index 000000000000..002461a974f8 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov8858.yaml > > @@ -0,0 +1,105 @@ > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/media/i2c/ovti,ov8858.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: OmniVision OV8858 Image Sensor > > + > > +maintainers: > > + - Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> > > + - Nicholas Roth <nicholas@xxxxxxxxxxxxx> > > + > > +description: | > > + The OmniVision OV8858 is a color CMOS 8 Megapixels (3264x2448) image sensor > > + controlled through an I2C-compatible SCCB bus. The sensor transmits images > > + on a MIPI CSI-2 output interface with up to 4 data lanes. > > + > > +properties: > > + compatible: > > + const: ovti,ov8858 > > + > > + reg: > > + maxItems: 1 > > + > > + clocks: > > + maxItems: 1 > > + description: XVCLK external clock > > + > > + clock-names: > > + const: xvclk > > + > > + dvdd-supply: > > + description: Digital Domain Power Supply > > + > > + avdd-supply: > > + description: Analog Domain Power Supply > > + > > + dovdd-supply: > > + description: I/O Domain Power Supply > > + > > + powerdown-gpios: > > + description: PWDNB powerdown GPIO (active low) > > + > > + reset-gpios: > > + description: XSHUTDN reset GPIO (active low) > > Here you need maxItems. I did not propose to remove it here. > I'm wondering why you can have multiple resets but not multiple powerdowns. Anyway, how is one supposed to know when maxItems is required or not, where should I look ? Thanks j > > Best regards, > Krzysztof >