On Tue, Jan 28, 2020 at 01:13:01PM +0200, Alexandru Ardelean wrote: > From: Edward Kigwana <ekigwana@xxxxxxxxx> > > This change adds the device-tree bindings documentation for the ADF4360 > family of PLLs. > > Signed-off-by: Edward Kigwana <ekigwana@xxxxxxxxx> > Signed-off-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> > --- > .../bindings/iio/frequency/adi,adf4360.yaml | 137 ++++++++++++++++++ > 1 file changed, 137 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,adf4360.yaml > > diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,adf4360.yaml b/Documentation/devicetree/bindings/iio/frequency/adi,adf4360.yaml > new file mode 100644 > index 000000000000..895e2cb2b300 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/frequency/adi,adf4360.yaml > @@ -0,0 +1,137 @@ > +# SPDX-License-Identifier: GPL-2.0 > +# Copyright 2019-2020 Edward Kigwana > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/frequency/adi,adf4360.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Analog Devices ADF4360 PLL device driver > + > +maintainers: > + - Lars-Peter Clausen <lars@xxxxxxxxxx> > + - Edward Kigwana <ekigwana@xxxxxxxxx> > + > +description: | > + Bindings for the Analog Devices ADF4360 family of clock generator phase-locked > + loop (PLL) devices with an integrated voltage-controlled oscillator (VCO). > + Each of the parts in the family supports a specific frequency range. > + Datasheets can be found here: > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-0.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-1.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-2.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-3.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-4.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-5.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-6.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-7.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-8.pdf > + https://www.analog.com/media/en/technical-documentation/data-sheets/ADF4360-9.pdf > + > +properties: > + compatible: > + pattern: '^adi,adf4360-[0-9]$' > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + clock-names: > + items: > + - const: clkin > + > + '#clock-cells': > + const: 0 > + > + adi,loop-filter-pfd-frequency-hz: > + description: | > + The phase-frequency-detector frequency that the external loop filter was > + designed for. > + allOf: > + - minimum: 25000 > + - maximum: 8000000 > + maxItems: 1 You're mixing array and scalar properties. Drop 'maxItems' and min/max don't need to be under 'allOf'. > + > + adi,loop-filter-charger-pump-current-microamp: > + description: | > + The charge pump current that the external loop filter was designed for. > + The provided value is clamped to the closest enumerated value. > + enum: [ 310, 620, 930, 1250, 1560, 1870, 2180, 2500 ] > + > + adi,vco-minimum-frequency-hz: > + description: | > + Required for ADF4360-7, ADF4360-8 and ADF4360-9. Minimum VCO frequency > + that can be supported by the tuning range set by the external inductor. > + maxItems: 1 > + > + adi,vco-maximum-frequency-hz: > + description: | > + Required for ADF4360-7, ADF4360-8 and ADF4360-9. Maximum VCO frequency > + that can be supported by the tuning range set by the external inductor. > + maxItems: 1 > + > + adi,loop-filter-inverting: > + description: Indicates that the external loop filter is an inverting filter. > + type: boolean > + > + adi,power-up-frequency-hz: > + description: | > + PLL tunes to the set frequency on probe or defaults to either the minimum > + for the part or value set using adi,vco-minimum-frequency-hz. > + maxItems: 1 > + > + vdd-supply: > + description: | > + vdd supply is used to enable or disable chip when regulator power down > + mode is set. Other power down modes are used to mitigate the case of a > + shared regulator. > + > + enable-gpios: > + description: | > + Chip enable gpio is used to enable or disable chip when chip enable power > + down mode is set. > + maxItems: 1 > + > + adi,muxout-gpios: > + description: | > + MUX out gpio is used to detect chip and test pll lock state on read when > + muxout control is set to lock detect. > + maxItems: 1 > + > + adi,power-out-level-microamp: > + description: | > + Chip support setting of output power level. This property is optional. > + If it is not provided by default 11000 uA will be set. > + enum: [ 3500, 5000, 7500, 11000 ] > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - adi,loop-filter-charge-pump-current > + - adi,loop-filter-pfd-frequency-hz > + > +examples: > + - | > + spi0 { > + #address-cells = <1>; > + #size-cells = <0>; > + > + pll@0 { > + compatible = "adi,adf4360-7"; > + reg = <0>; > + spi-max-frequency = <2000000>; > + clocks = <&ref_clock>; > + #clock-cells = <0>; > + clock-names = "clkin"; > + clock-output-names = "adf4360-7"; > + > + adi,loop-filter-charge-pump-current = <5>; > + adi,loop-filter-pfd-frequency-hz = <2500000>; > + adi,vco-minimum-frequency-hz = <700000000>; > + adi,vco-maximum-frequency-hz = <840000000>; > + }; > + }; > +... > -- > 2.20.1 >
