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Wed, 9 Sep 2026 04:28:01 -0400 From: Andrei Stancovici To: =?UTF-8?q?Nuno=20S=C3=A1?= , Michael Hennerich , Jonathan Cameron , "David Lechner" , Andy Shevchenko , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Liam Beguin , , , , CC: Andrei Stancovici Subject: [PATCH v4 0/3] iio: adc: add LTC2499 features support Date: Wed, 9 Sep 2026 11:27:49 +0300 Message-ID: <20260909082755.366269-1-andrei.stancovici@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-GUID: 3h6MXQKw4OrETqWEhQWtCCl_f2T3JFKN X-Authority-Analysis: v=2.4 cv=Yvk/gYYX c=1 sm=1 tr=0 ts=6aa1189b cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=uXIjobp8t2wMuQ0fPvqm:22 a=VwQbUJbxAAAA:8 a=gAnH3GRIAAAA:8 a=ZCGEuXmVW1eJA1p7E5EA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA5MDA5MiBTYWx0ZWRfX2MEtUEOsOwif fvAwwODdahen6hWOk9uOrElGtwn4hfDgPx2w0a340qRs+zfVE4pMAA0C4mhdiF7RrNgNbqGKoTY 6u4tkRBgNFdRGzuM5EYvQ0oGt8/kk1wcVGX2+PPOnCfEcjbI3oPM X-Proofpoint-ORIG-GUID: 3h6MXQKw4OrETqWEhQWtCCl_f2T3JFKN X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA5MDA5MiBTYWx0ZWRfX3RA3g85sG/PL 8iWXHj9KoyNvFJAGELE3cGiails8dreM0WUsKB4DR3Oqgsvv3iVE4DOJI2ZtrBrWlr5bVQTtw5T K29RaweamORVdqjf+YpID0qhMQDN7b5asVJPrRmxO6szW0w6HoHavFJVxigtUj8WuI6nmiPHC5N tPGUhtDxsKX3u2N9m+14DlTgGXgErp3sV+TIQcaeEWbR9h3siVlEmh93UDs+Tf0zYVRZnDLyCtq 950AcB/7aSkTN+nh9G18befM+pn3xuJItoxJO/uX0+LVOjCA3V7ddbbjz/EL1sWLsousuqYHvaD U0cRN31iR2QFInawZjFrf2AfxPFORHKDuS3Je7KmfOeCiYlYuOExjr6nMzKM5i65Ycp6fA1as3R YZoP8z8yte9LVgQZG/XfICu2hzaLK6Rfwe9suW7ah9aE5NXfRsDBXn5X9JdGj39AFuC6hQU7Le1 PM4ivAcRioD/OeB08QQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-08_03,2026-09-08_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 adultscore=0 impostorscore=0 suspectscore=0 clxscore=1015 phishscore=0 priorityscore=1501 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609090092 This series adds LTC2499 support on top of the existing LTC2497 driver. It includes: - a small binding title correction for LTC2499, - the LTC2499 internal temperature channel, - the LTC2499 2x conversion speed mode exposed via sampling_frequency. Validation performed on Raspberry Pi 4 with a DC1012A-A board: - temperature raw/scale/offset read correctly, - voltage channels remain sane after temperature reads, - sampling_frequency 1x/2x switching works, - pyadi-iio LTC2499 validation passed, - hardware-in-the-loop M2K validation passed. Changes in v4: - The channel table is no longer copied and patched at runtime: two static const tables, one selected in probe. - struct ltc2497_chip_info has its booleans last. - Commit messages and code comments cut back. - Naming settled on speed_2x / has_speed_mode. Per-patch changelogs are under the --- of each patch. v3: https://lore.kernel.org/r/20260902064415.132588-1-andrei.stancovici@analog.com Andrei Stancovici (3): dt-bindings: iio: adc: lltc,ltc2497: add LTC2499 to title iio: adc: ltc2497: add LTC2499 internal temperature channel iio: adc: ltc2497: add 2x conversion speed mode .../bindings/iio/adc/lltc,ltc2497.yaml | 2 +- drivers/iio/adc/ltc2497-core.c | 298 +++++++++++++++--- drivers/iio/adc/ltc2497.c | 42 +++ drivers/iio/adc/ltc2497.h | 31 +- 4 files changed, 320 insertions(+), 53 deletions(-) base-commit: 36c12dbda81c284d72f3c64689461647497b643b -- 2.43.0