From nobody Mon Feb 9 16:01:55 2026 Received: from mail-pf1-f181.google.com (mail-pf1-f181.google.com [209.85.210.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BCAF432826B for ; Wed, 24 Dec 2025 05:37:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766554648; cv=none; b=dT+UC1raQOxOIOuHVx5+WUgdnzgqLjuRFEs6DcpJCKPMMXGO88MB9NAdQkFyBPGJyIoFOSWyxcvWHlVRLiu9pNUxp8ooG6su2wcTdupUXdpmUpLXhzqMjUvKXTxigcfZZcDfFaJYwunujDIZGlWxgbLTWBKZee7kkHWSTsKLFww= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766554648; c=relaxed/simple; bh=S8OEpcXpBEONfmjqfR3syMAXK/IV6W+U/9C5wzdJYO0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=evkxM/Xg+Nnxf10vIRLZBWd5uXusiDaRSrJ2RhUs6Glj/lC7k93rj9IVzO57qXQFP1cclAhAEnxIljncqhxxZV1seQeic4V9sneYOHlDmMVqwMtpMfEKJOLjcU4ZcQoJM4UbNw5q4OjL/3OaHeKbhyJdYRgzHOjF+U3nsHUQOu4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=HcEuPmUk; arc=none smtp.client-ip=209.85.210.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HcEuPmUk" Received: by mail-pf1-f181.google.com with SMTP id d2e1a72fcca58-7fc0c1d45a4so5155226b3a.0 for ; Tue, 23 Dec 2025 21:37:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1766554646; x=1767159446; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=pKre85fWvMpDGBSufwyT7PttY316kDFDWNTXYHvVPt4=; b=HcEuPmUkuIoh4VnebskKdbCuJkBoeMw9TSsHqb7LjJl6OX8e+HBA6kMOA662thuk3K 2GBgtGWoYtOI+aI9hoZZJJaY3dsNbENmz4upKczbqGGFOwEWDDAihxJ/hT8iEQwtnPh7 6RTYMZykJMS/nAuJicKIzzrvOpZy7ZnalkH/RMIi1w1wyoIogLUr3bihDRgqUS926bWH hCV2nVjeW4PaASFOyGG4Ekw4AORnwzGooKoFG8/BiUrbytg4mP00ja+g8CrPZUydtD+s DnbofxMV6RmrtBWm37ct7ZOHtwdTzwviLEpN+tSTcvh3Ixg8tjiw3fhbuIayxYZ46zJn CKmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766554646; x=1767159446; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=pKre85fWvMpDGBSufwyT7PttY316kDFDWNTXYHvVPt4=; b=BADwn8eDFv8PCXFPprkG1eW0jdtgMR18uNgZGsNsvqpUbACX0NL6ZukCLqFEjD16/w TEDEM+vjyggJo6s0bEgCqhFh1IJAM2iH2YI6jaiolZYy/6JqJxGbNq2FU5vIekf2CcSV /s6XFpg/wq0iKkbcaBauYAI/Dn7dENTArqnClDBZ2xqtyssOq2wyjB56Wh3zcfisWQkp Z01l78JLNVpuwBGYJfMKdvKNkCe+AEQb1hT8sbAurHhTySyo7/gHZECut2+l7PvziS/c kb9WmhsWzR3Iva/3FvtaigoWG90CETV9K3f3BS+gpKz/P2cIUl+kp6XufpnbjhJi56sN vIjQ== X-Forwarded-Encrypted: i=1; AJvYcCWfTr4eWD7OIlMj6+4OfI29xSHkfRgawhUGXbfIxaAo+7NGnBXkiBc8pJX8Dq2gV1I1s/Kiab7jDbofLlk=@vger.kernel.org X-Gm-Message-State: AOJu0YxfqtWw2Ilje9raJn7g9W/cOODUDYuuDTAFMc7TQhIjbEyJYAXB 8/2icitREzQOzZWJmeqpP3UwjdMgGF2/fvKlchzBp0SGydwFLXSwXhyT X-Gm-Gg: AY/fxX7SYSY1q+hv8KBihRFM+gKX2whFTUfF9WiLY5NeByfCAW/zD9W5abZOI9ykSsW HdDyslf9TvjItzDoPDXdGyYy6ABb8fTabMaqqXrn3rNTdSsQZNXLKShtn1axj7WDchdQayYW9PE n1l7hEOSkYCohAnQQ4ihZNcWKcg+kmE/EKuSSXQrsjbAZiqMmvu/zK5OymeGx+ytkuNIisq/Pok JLLuUb/4xiiCUiPvzyoT7dLmRvP5zUmKMGZJj7fvdxL5WxYT6N7q8q8Mqb+JrZmylPLqGtlB03/ iR7THXSLbcZVWrWp3y8g3QpRl9qastI58f0SPuuRxa7SimC6LiHZtAt7+vx7pfMJdRQMcFqqk3m WaZs8Zm7Z+Sa23H6k/5vk6xgaUhRB31xnhvFou8azjaUUnXPZMZrFhh7mFQndqxePl0rwWyLc9I ENifINwj71X65Q4iLmQyfR0ZjmLUZkrAj+HbjickNlmYewb1Cx5B2Nl6XgEnSYZQ== X-Google-Smtp-Source: AGHT+IE0YVTtk2SgE9YXmPr6Wu77YgrOKdJ0ETc2l2CSc8FkQap/ObHyWSek4HenW73EJBJ92pDfcQ== X-Received: by 2002:a05:6a00:450c:b0:7e8:450c:61d2 with SMTP id d2e1a72fcca58-7ff66d5fd00mr14124818b3a.66.1766554645924; Tue, 23 Dec 2025 21:37:25 -0800 (PST) Received: from [127.0.1.1] (61-220-246-151.hinet-ip.hinet.net. [61.220.246.151]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7e588a30sm15540214b3a.55.2025.12.23.21.37.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Dec 2025 21:37:25 -0800 (PST) From: Kyle Hsieh Date: Wed, 24 Dec 2025 13:37:14 +0800 Subject: [PATCH v2 1/2] dt-bindings: adc: ltc2497: add support for ltc2305 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251224-add_ltc2305_driver-v2-1-061f78cf45a3@gmail.com> References: <20251224-add_ltc2305_driver-v2-0-061f78cf45a3@gmail.com> In-Reply-To: <20251224-add_ltc2305_driver-v2-0-061f78cf45a3@gmail.com> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Beguin Cc: Michael Hennerich , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kyle Hsieh X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1469; i=kylehsieh1995@gmail.com; h=from:subject:message-id; bh=S8OEpcXpBEONfmjqfR3syMAXK/IV6W+U/9C5wzdJYO0=; b=owEBbQGS/pANAwAKAaWDQrcJVsSBAcsmYgBpS3wQJld+NbDFA9N5+0S/qidJcVTdqVfpI0vh7 pLlCQzdaheJATMEAAEKAB0WIQTJHsaNZOdY+THGqJelg0K3CVbEgQUCaUt8EAAKCRClg0K3CVbE gXZDCACaqRqK3eRMByrJF31BiZ8dGooh9ilGWPCYdC6hM5CrdyCxXuH5HKXU8oVNW1XMPIiqhjH i/7Q88MBczxAZOVkA2tixYiLHacTOZ7Uso+3wjL5C5liKbioinDg287QPUs0AUVVpHT98RjHxfa 1SDFLMLEJDYTFjvWSlMNgSURUJML6kJE9JOn1s1wHXxpxgpo03Xud+A53teWkzRUcgvUAMm+1ih SVYbNR+Ez1IxB9Xbznq3bELRYbI//yjbBgrPl68rnZw5bywWNFl5y3qsCwNvMt6mdOAtiORAvto gTnP3mhIKiNv4VRZF0A1X7LR6ev7VboYQTkckjimpR7LShL8 X-Developer-Key: i=kylehsieh1995@gmail.com; a=openpgp; fpr=C91EC68D64E758F931C6A897A58342B70956C481 Add documentation for the 2-channel LTC2305 ADC in the existing ltc2497 binding. This enables automatic device tree matching for LTC2305 while using the LTC2309 driver (drivers/iio/adc/ltc2309.c), since both ADCs share the same I2C interface and 12-bit SAR architecture. The main difference is the number of channels (LTC2305: 2, LTC2309: 8). Signed-off-by: Kyle Hsieh --- Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml b/= Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml index 5cc6a9684077..c884b6e03767 100644 --- a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml +++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml @@ -11,6 +11,12 @@ maintainers: - Liam Beguin =20 description: | + LTC2305: + low noise, low power, 2-channel, 12-bit successive approximation ADC w= ith an + I2C compatible serial interface. + + https://www.analog.com/media/en/technical-documentation/data-sheets/23= 015fb.pdf + LTC2309: low noise, low power, 8-channel, 12-bit successive approximation ADC w= ith an I2C compatible serial interface. @@ -28,6 +34,7 @@ description: | properties: compatible: enum: + - lltc,ltc2305 - lltc,ltc2309 - lltc,ltc2497 - lltc,ltc2499 --=20 2.34.1