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Document the > renesas,analog-noise-filter property, which references the system > controller together with the offset of the SYS_I3C_CFG register and > the state of the filter: 1 enables the filter and 0 bypasses it. > > The property is optional: device trees not providing it keep the > filter at its reset value. > > Signed-off-by: Diogo Ivo > --- > .../devicetree/bindings/i3c/renesas,i3c.yaml | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/Documentation/devicetree/bindings/i3c/renesas,i3c.yaml b/Documentation/devicetree/bindings/i3c/renesas,i3c.yaml > index 08fcea89a015..381807844351 100644 > --- a/Documentation/devicetree/bindings/i3c/renesas,i3c.yaml > +++ b/Documentation/devicetree/bindings/i3c/renesas,i3c.yaml > @@ -96,6 +96,25 @@ properties: > - const: presetn > - const: tresetn > > + renesas,analog-noise-filter: > + $ref: /schemas/types.yaml#/definitions/phandle-array I don't like this syscon property, look like it is one kind pad propterty. Is it possible model as pinctrl? Frank > + description: > + Analog noise filter for the I3C input signals (I3C_SDA, I3C_SCL), > + controlled through the SYS_I3C_CFG register of the system > + controller (SYSC). Three entries specifying the system controller, > + the offset of the SYS_I3C_CFG register and the state of the filter. > + If not present, the filter keeps its reset state. > + items: > + - items: > + - description: phandle to the system controller node > + - description: offset of the SYS_I3C_CFG register within the SYSC > + - enum: [0, 1] > + description: | > + state of the analog noise filter: > + - 1: enable the filter, performing noise reduction on the > + I3C_SDA and I3C_SCL input signals > + - 0: bypass the filter > + > required: > - compatible > - reg > > -- > 2.56.0 >