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Thu, 14 Nov 2024 08:03:58 -0500 From: Ciprian Hegbeli To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Javier Carrasco , Ciprian Hegbeli , Kim Seer Paller , Antoniu Miclaus , , , Subject: [PATCH 1/2] dt-bindings: iio: frequency: Add ADF4382 Date: Thu, 14 Nov 2024 15:03:10 +0200 Message-ID: <20241114130340.7354-2-ciprian.hegbeli@analog.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241114130340.7354-1-ciprian.hegbeli@analog.com> References: <20241114130340.7354-1-ciprian.hegbeli@analog.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: I186iUXY6KeZn_IqZDrACXYgfC-pcP56 X-Proofpoint-GUID: I186iUXY6KeZn_IqZDrACXYgfC-pcP56 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=999 phishscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 impostorscore=0 clxscore=1015 spamscore=0 bulkscore=0 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411140102 Content-Type: text/plain; charset="utf-8" The ADF4382A is a high performance, ultralow jitter, Frac-N PLL with integrated VCO ideally suited for LO generation for 5G applications or data converter clock applications. The high performance PLL has a figure of merit of -239 dBc/Hz, low 1/f Noise and high PFD frequency of 625MHz in integer mode that can achieve ultralow in-band noise and integrated jitter. The ADF4382A can generate frequencies in a fundamental octave range of 11.5 GHz to 21 GHz, thereby eliminating the need for sub-harmonic filters. The divide by 2 and 4 output dividers on the part allow frequencies to be generated from 5.75GHz to 10.5GHz and 2.875GHz to 5.25GHz respectively. Signed-off-by: Ciprian Hegbeli --- .../bindings/iio/frequency/adi,adf4382.yaml | 141 ++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,adf= 4382.yaml diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,adf4382.ya= ml b/Documentation/devicetree/bindings/iio/frequency/adi,adf4382.yaml new file mode 100644 index 000000000000..44a29ac7a2e8 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/frequency/adi,adf4382.yaml @@ -0,0 +1,141 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/frequency/adi,adf4382.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ADF4382 Microwave Wideband Synthesizer with Integrated VCO + +maintainers: + - Antoniu Miclaus + - Ciprian Hegbeli + +description: The ADF4382 is a high performance, ultralow jitter, Frac-N PL= L with + integrated VCO ideally suited for LO generation for 5G applications + or data converter clock applications. + + https://www.analog.com/en/products/adf4382a.html + +properties: + compatible: + enum: + - adi,adf4382 + - adi,adf4382a + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 75000000 + + clocks: + description: Clock to provide CLKIN reference clock signal. + maxItems: 1 + + clock-names: + description: + External clock that provides reference input frequency. + items: + - const: ref_clk + + '#clock-cells': + const: 0 + + clock-output-names: + maxItems: 1 + + adi,charge-pump-microamp: + description: + The charge pump current that the external loop filter was designed f= or. + If this property is not specified, then the charge pump current is s= et to the + default 11100uA. The valid values are listed below. However, if the = set value is + not supported, the driver will look for the closest valid charge pum= p current. + anyOf: + - enum: [790, 990, 1190, 1380, 1590, 1980, 2390, 2790, 3180, 3970, 4= 770, 5570, 6330, 7910, 9510, 11100] + + adi,ref-divider: + description: + Input divider of the reference frequency, cannot be lower then 1 or + higher then 63. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 1 + - maximum: 63 + - default: 1 + maxItems: 1 + + adi,ref-doubler-enable: + description: + Enables the doubling of the reference clock. + type: boolean + maxItems: 1 + + adi,bleed-word: + description: + A small programmable constant charge pump current, known as bleed cu= rrent, + can be used to optimize the phase noise and fractional spurious sign= als + in fractional mode. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 0 + - maximum: 4095 + - default: 0 + maxItems: 1 + + adi,power-up-frequency: + description: + PLL tunes to the set frequency on probe or defaults to 2,305 GHz. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint64 + - minimum: 687500000 + - maximum: 22000000000 + - default: 2305000000 + maxItems: 1 + + adi,output-power-value: + description: + The output power amplitude level which will be applied for both chan= nels + at startup. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 0 + - maximum: 15 + - default: 11 + maxItems: 1 + + adi,spi-3wire-enable: + description: + Uses SPI in 3 wire mode, by default is uses 4 wire mode. + type: boolean + maxItems: 1 + + adi,cmos-3v3: + description: + Sets the SPI logic to 3.3V, by defautl it uses 1,8V. + type: boolean + maxItems: 1 + +required: + - compatible + - reg + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + spi { + #address-cells =3D <1>; + #size-cells =3D <0>; + frequency@0 { + compatible =3D "adi,adf4382"; + reg =3D <0>; + spi-max-frequency =3D <1000000>; + clocks =3D <&adf4382_clkin>; + clock-names =3D "ref_clk"; + adi,charge-pump-current =3D <15>; + adi,ref-divider =3D <1>; + }; + }; +... --=20 2.43.0