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Fri, 14 Nov 2025 06:58:53 -0500 From: Antoniu Miclaus To: , , , , , CC: Antoniu Miclaus Subject: [PATCH v3 0/3] iio: amplifiers: add support for ADL8113 Low Noise Amplifier Date: Fri, 14 Nov 2025 11:57:22 +0000 Message-ID: <20251114115725.5660-1-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE0MDA5NSBTYWx0ZWRfX0SbCbRpgZMzI 8ehXrIYQ7wINlj1GvKzkBsExdHiXnUtBY/dOJvwkiq1M31QPBI/2RFnglkcWQ2tsZn2tk17dkwE Sd+M4P8msi8w8QTr7tPKRdmA0moe60SHN4ezKIOWcpsuTt0v21q1G5w3LNViE7G+nL7EGq2A45B T4o9YcxfgaVrXQJbXHY7c4DXCCYrEFngvQoHDKO5YVslqfrzDp0N5cgpti/rqTVSPtduzD0vVzi RE7x8EQEnIGOFcuRorfXx7a177D2N4bQPOcDBDs9SGeeBRxGdZ2aqsn2RvwgjQQJ891HtmOSgxv FC5MZ1aiVTTCrk5PggNOz4Ar64JurRAuKIi9m2AarMQ/6Qsa6TYDvIBSebs97iid0i5yah4BizW 9FRVb34MjwkODQ4KnOjf/Jn47GuKow== X-Proofpoint-ORIG-GUID: Dm8rQ4OKq9Z-iLZJmRo26spzCjiLjT-l X-Authority-Analysis: v=2.4 cv=M91A6iws c=1 sm=1 tr=0 ts=691719b0 cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=_jDn8YihPVvimUYNn0YA:9 a=cPQSjfK2_nFv0Q5t_7PE:22 X-Proofpoint-GUID: Dm8rQ4OKq9Z-iLZJmRo26spzCjiLjT-l X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-14_03,2025-11-13_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 adultscore=0 bulkscore=0 phishscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511140095 This patch series adds support for the Analog Devices ADL8113, a 10MHz to 12GHz Low Noise Amplifier with integrated bypass switches. The ADL8113 provides four operation modes controlled by two GPIO pins: - Internal Amplifier (14dB gain) - Internal Bypass (0dB gain) - External Bypass A (0dB gain) - Signal routes from RFIN to OUT_A and from IN_A to RFOUT - External Bypass B (0dB gain) - Signal routes from RFIN to OUT_B and from IN_B to RFOUT The external bypass modes enable external signal processing, conditioning, or filtering while maintaining signal integrity through dedicated signal paths. Changes in v3: - Refactor driver architecture to separate gain mode and signal path controls - Replace single "mode" attribute with separate "signal_path" and "hardwaregain" attributes - Add write support for hardwaregain to enable switching between amplifier (14dB) and bypass (0dB) modes - Automatically handle signal path constraints (external paths force bypass mode) - Simplify device tree bindings by removing extra blank line - Update ABI documentation to reflect the new signal_path attribute interface - Add comprehensive validation for gain/path combinations Antoniu Miclaus (3): dt-bindings: iio: amplifiers: add adl8113 iio: amplifiers: adl8113: add driver support Documentation: ABI: adl8113: add documentation .../testing/sysfs-bus-iio-amplifiers-adl8113 | 30 +++ .../bindings/iio/amplifiers/adi,adl8113.yaml | 64 +++++ drivers/iio/amplifiers/Kconfig | 12 + drivers/iio/amplifiers/Makefile | 1 + drivers/iio/amplifiers/adl8113.c | 252 ++++++++++++++++++ 5 files changed, 359 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-amplifiers-adl8113 create mode 100644 Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml create mode 100644 drivers/iio/amplifiers/adl8113.c -- 2.43.0