From nobody Tue Feb 10 03:44:38 2026 Received: from mail-pf1-f174.google.com (mail-pf1-f174.google.com [209.85.210.174]) (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 0409D30146C for ; Tue, 23 Dec 2025 09:12:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766481163; cv=none; b=Rd10kmNSOGbsvjP1aaFwMbfH9wFMQDGC+IJeDphxjMqhhPagfK29kMPvh0sUyat7iy63TIroebTO8w9nX0tIxPNCJ0XPRpOVRnCaCeT6uZM4qWC0InG/2WDprAB8t9Lj6z/IWTrHjjUUedH+6FtB1AbBPP30eUWD6x7wdUCTGyw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766481163; 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=lixxeeJC+j5HY8ZowEJkKljcn0O7PjeA9dvl/1dD2G5F/pdQDaoAvdzqIOOCXCO0AfPd0WOwkbXFfh6Ibyh/3IAiFJsK0PZ3YL6I3RyjD30QSQxzrsk5Di7/HuBR2l+aZ6k7Ie2Q7BXmByoSk+G3HdAAzvlYjbViS+SMYboBF0k= 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=l/Tz364/; arc=none smtp.client-ip=209.85.210.174 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="l/Tz364/" Received: by mail-pf1-f174.google.com with SMTP id d2e1a72fcca58-7ade456b6abso3991827b3a.3 for ; Tue, 23 Dec 2025 01:12:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1766481161; x=1767085961; 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=l/Tz364/NO6yaEX2g0v/OjT5eNduG2lcNeJ7zBimDtfO5rdNKL4MR/Uff7DgxxVri/ R+h7r/JRqhWjxTSGL1BYAxlXn3IQdtMTb1+bD1YKfdzus8JgnlEW1sB5bZEsnFlM1S0m hU9ektCB8LHjSbLDGuXzPy8qPmtJGL0d034nZZ4sMckOkK06DIsTPZaiHMa/uqMPEkPp DJ/b47Sj7pp1vj/HvJtaoI0KavHBzxn3LrrR8iAs+EqYf59JnR/X4OV9GzRT1Nc6oVVn GrlSnGdH8JbL5fo5Xrs/0dqdVIxAHg4nCPvbavq65SSYzbr59ZrDuDw6xqyiP0LnmVlu Zlww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766481161; x=1767085961; 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=KZF77IWfpBmnnPmN+TgMK3u2HZpa25UfFaptUxlJHyFDs7bt03+mjRIRijFPkCP5Qz g0lGnQpa1nVRFyFEEi4O3Kc8Q7bKl9Gt61l8x2Ql1i4dIL7K9AMQWcUeN+8d/dIn4c5P Urv5FjG2hRzzg74nQGAm33+EK5r7PqLPw/2TnwesLxD7YYk2PS9g+h+QiHsncw5m1vwV vQMQl+ZtpNGumEQ8M7x3J9Ya6+Q0PSv0XTzbNbbYJpJUn5iJ98Wny2MWHKIws3JOy+Ar iosMuE73UA2kYJFB04ppd7IFfr+I6Sl6H3U+STBsmo+qAlXYy/pqlsSHggNsUDB3GXcE nxYw== X-Forwarded-Encrypted: i=1; AJvYcCVz8zimlXCUPRPxQSS0l94LNVrBGw52V4sHqM9NWiIHhFErXSmq2uU4NVJAciolaEXHWCquYKM5t22Xw44=@vger.kernel.org X-Gm-Message-State: AOJu0Yyoak8g5A8iDYi9elOFpifBkMiRS04S9ZUwizgacJJa7Hmsfqx+ CAOl637lO+lajozCpeP5VcVR1rnfVtJumui2EPq5Hv5bkLjJAUy3SNWd X-Gm-Gg: AY/fxX6BQHjVZduO0zX/q7eiG5M/EDubp9WL1ZOw3BmPpfKmBu/nzjxiVygIYqAKYIC UiJ0OKKai7f/diuYmEtf07V4GYaG3ytk1zj4bX2Ycsu7kG1IRDGrdIkLnCtmLxrFdKdH8zVExKN Zk537TDurjLTZ/3Ch4cG1LSj23P3vLhPpIvQb+gh8JatfvFEEAvIwK1FNM0LQmkFYFBGhaYkwtA aPiS9isZJU5qOioC4Y+ONvAa4ws5ZTunYX03aM+53PZNVrcBy6/jyjP4oSHgBRqrHJ6SZIm4mjd e20iW7ENu4STcSreHNqsXuQrgMbbx+k6Qb+y6xdvwQF2a6r0Sw4klEr6lURKfvj9/PwEHTRlNqN 7LgpQUqrJsE5tPEHtnav7AnfrfkVpp3jlI5Z+1LVST+B7NgRq3Cbr5TXL7+T+loL1DR/+nT7Op0 t5hcxdC8uXo0yuuDdy6WHP99qMKaX5Rc/DFSVgG0ExDeNRjmO0Szw= X-Google-Smtp-Source: AGHT+IFb8nq5pHNU4Lw558+3nSA5hlVwvrQvQ/fUlsD2Htq3k/K8wz2pYmZURYEMYcJ3ZQUW8K/4gQ== X-Received: by 2002:a05:6a21:3086:b0:366:187c:55 with SMTP id adf61e73a8af0-376a4c66ccamr13104281637.0.1766481161371; Tue, 23 Dec 2025 01:12:41 -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 98e67ed59e1d1-34e9224d9e5sm12352454a91.17.2025.12.23.01.12.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Dec 2025 01:12:41 -0800 (PST) From: Kyle Hsieh Date: Tue, 23 Dec 2025 17:12:25 +0800 Subject: [PATCH 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: <20251223-add_ltc2305_driver-v1-1-dfa0827fd620@gmail.com> References: <20251223-add_ltc2305_driver-v1-0-dfa0827fd620@gmail.com> In-Reply-To: <20251223-add_ltc2305_driver-v1-0-dfa0827fd620@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/pANAwAKAaWDQrcJVsSBAcsmYgBpSl0Dpsdjt0FovFejrcSdweINxpHDfrRl8wEeZ kPKTRg08bWJATMEAAEKAB0WIQTJHsaNZOdY+THGqJelg0K3CVbEgQUCaUpdAwAKCRClg0K3CVbE gRWuCACVYbmKhPuOt+ucPuTweOnMCQE4W8fXTu3J4as8T4/V4kV3UfHTEpTpdoi46UwHJitUsnW 82LiJCVrRfSvu++RcyhL/CK3T6xpUPyK4bEWqDYYCjLWgpi4ofNDbv5E7jy8UWwrsmypOSxjSps ln7VhEJU+I+aJhJkuplSgpevFNE0pBXB/l8jZVGeqrQt3dorQeblYEZDHeRFGf3lGa4MQ/kASqx gIDFj9vWPfRjCoMKe5BshVNt7c31nZTw1bALitPPIw14qif3a+AW0jeM91QN1Vh7JmijDLT9UkN LunOxZ4LBjLKAZQlytPYB17aVSAIadZVEpky6m6BaOzF2I9P 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