xref: /linux/Documentation/devicetree/bindings/iio/frequency/adi,adf4350.yaml (revision c8faf11cd192214e231626c3ee973a35d8fc33f2) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/frequency/adi,adf4350.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Analog Devices ADF4350/ADF4351 wideband synthesizer
8
9maintainers:
10  - Michael Hennerich <michael.hennerich@analog.com>
11
12properties:
13  compatible:
14    enum:
15      - adi,adf4350
16      - adi,adf4351
17
18  reg:
19    maxItems: 1
20
21  spi-max-frequency:
22    maximum: 20000000
23
24  clocks:
25    maxItems: 1
26    description: Clock to provide CLKIN reference clock signal.
27
28  clock-names:
29    const: clkin
30
31  '#clock-cells':
32    const: 0
33
34  clock-output-names:
35    maxItems: 1
36
37  gpios:
38    maxItems: 1
39    description: Lock detect GPIO.
40
41  adi,channel-spacing:
42    $ref: /schemas/types.yaml#/definitions/uint32
43    description:
44      Channel spacing in Hz (influences MODULUS).
45
46  adi,power-up-frequency:
47    $ref: /schemas/types.yaml#/definitions/uint32
48    description:
49      If set the PLL tunes to this frequency (in Hz) on driver probe.
50
51  adi,reference-div-factor:
52    $ref: /schemas/types.yaml#/definitions/uint32
53    description:
54      If set the driver skips dynamic calculation and uses this default
55      value instead.
56
57  adi,reference-doubler-enable:
58    $ref: /schemas/types.yaml#/definitions/flag
59    description: Enables reference doubler.
60
61  adi,reference-div2-enable:
62    $ref: /schemas/types.yaml#/definitions/flag
63    description: Enables reference divider.
64
65  adi,phase-detector-polarity-positive-enable:
66    $ref: /schemas/types.yaml#/definitions/flag
67    description: Enables positive phase detector polarity. Default negative.
68
69  adi,lock-detect-precision-6ns-enable:
70    $ref: /schemas/types.yaml#/definitions/flag
71    description: Enables 6ns lock detect precision. Default = 10ns.
72
73  adi,lock-detect-function-integer-n-enable:
74    $ref: /schemas/types.yaml#/definitions/flag
75    description:
76      Enables lock detect for integer-N mode. Default = factional-N mode.
77
78  adi,charge-pump-current:
79    $ref: /schemas/types.yaml#/definitions/uint32
80    description: Charge pump current in mA. Default = 2500mA.
81
82  adi,muxout-select:
83    $ref: /schemas/types.yaml#/definitions/uint32
84    minimum: 0
85    maximum: 6
86    description: |
87      On chip multiplexer output selection.
88      Valid values for the multiplexer output are:
89      0: Three-State Output (default)
90      1: DVDD
91      2: DGND
92      3: R-Counter output
93      4: N-Divider output
94      5: Analog lock detect
95      6: Digital lock detect
96
97  adi,low-spur-mode-enable:
98    $ref: /schemas/types.yaml#/definitions/flag
99    description: Enables low spur mode. Default = Low noise mode.
100
101  adi,cycle-slip-reduction-enable:
102    $ref: /schemas/types.yaml#/definitions/flag
103    description: Enables cycle slip reduction.
104
105  adi,charge-cancellation-enable:
106    $ref: /schemas/types.yaml#/definitions/flag
107    description:
108      Enabled charge pump charge cancellation for integer-N modes.
109
110  adi,anti-backlash-3ns-enable:
111    $ref: /schemas/types.yaml#/definitions/flag
112    description:
113      Enables 3ns antibacklash pulse width for integer-N modes.
114
115  adi,band-select-clock-mode-high-enable:
116    $ref: /schemas/types.yaml#/definitions/flag
117    description: Enables faster band selection logic.
118
119  adi,12bit-clk-divider:
120    $ref: /schemas/types.yaml#/definitions/uint32
121    description:
122      Clock divider value used when adi,12bit-clkdiv-mode != 0
123
124  adi,clk-divider-mode:
125    $ref: /schemas/types.yaml#/definitions/uint32
126    enum: [0, 1, 2]
127    description: |
128      Valid values for the clkdiv mode are:
129      0: Clock divider off (default)
130      1: Fast lock enable
131      2: Phase resync enable
132
133  adi,aux-output-enable:
134    $ref: /schemas/types.yaml#/definitions/flag
135    description: Enables auxiliary RF output.
136
137  adi,aux-output-fundamental-enable:
138    $ref: /schemas/types.yaml#/definitions/flag
139    description: |
140      Selects fundamental VCO output on the auxiliary RF output.
141      Default = Output of RF dividers.
142
143  adi,mute-till-lock-enable:
144    $ref: /schemas/types.yaml#/definitions/flag
145    description: Enables Mute-Till-Lock-Detect function.
146
147  adi,output-power:
148    $ref: /schemas/types.yaml#/definitions/uint32
149    enum: [0, 1, 2, 3]
150    description: |
151      Output power selection.
152      Valid values for the power mode are:
153      0: -4dBm (default)
154      1: -1dBm
155      2: +2dBm
156      3: +5dBm
157
158  adi,aux-output-power:
159    $ref: /schemas/types.yaml#/definitions/uint32
160    enum: [0, 1, 2, 3]
161    description: |
162      Auxiliary output power selection.
163      Valid values for the power mode are:
164      0: -4dBm (default)
165      1: -1dBm
166      2: +2dBm
167      3: +5dBm
168
169required:
170  - compatible
171  - reg
172  - clocks
173
174allOf:
175  - $ref: /schemas/spi/spi-peripheral-props.yaml#
176
177unevaluatedProperties: false
178
179examples:
180  - |
181    spi {
182        #address-cells = <1>;
183        #size-cells = <0>;
184
185        pll@4 {
186            compatible = "adi,adf4351";
187            reg = <4>;
188            spi-max-frequency = <10000000>;
189            clocks = <&clk0_ad9523 9>;
190            clock-names = "clkin";
191            adi,channel-spacing = <10000>;
192            adi,power-up-frequency = <2400000000>;
193            adi,phase-detector-polarity-positive-enable;
194            adi,charge-pump-current = <2500>;
195            adi,output-power = <3>;
196            adi,mute-till-lock-enable;
197        };
198    };
199...
200