From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B88A73C5836; Tue, 30 Jun 2026 02:47:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782787657; cv=none; b=U8uWc9VVw8iRljMmkFqWW7iaFHOU/qUTEzQYugR3TqKMjju5BYOEvJz7xzTzvOQbgYUVbVk6WaUpL3lWOeKTeanZTpk7qtB6kA6Ck3rNK65ukNu9S1xA2ZdToghae7UST+rNPRHbYZbhW2RMiPQhFmHdULyhWCcNSP096I7cdfc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782787657; c=relaxed/simple; bh=8U7kmAKRICYYoNm5SriIZ6oz7hryPo3DBJtF+YUcgTw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=ZNFkos8ORK3udAKj4tiOyq96vB9YuwhbIV2rtgSnQ6GxkvNfBxASAZI9U+XKqgLYRP8W40ZhJpppbuPMM3lEQwZX5G0igqypNQCnJniisFB/g3B5TfKbWcNvwJUKSwuMBx7FL3biRXlFM0eeUa9KIkoilyjqy52XtxwhgvHc4oM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=FZ1m/0FA; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="FZ1m/0FA" Received: from pps.filterd (m0516787.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 65U1GTAx3610921; Mon, 29 Jun 2026 22:47:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=jz8a9 JZYznej+UfPY0pXYDOtQBN+9HJi+zqztoGGkIQ=; b=FZ1m/0FAniaZG7ZAxM/ch JyRmaOhilHiuXvF0LDO53ip+5EJqbHiWbMMNdpFNAvEE5U+hN2mk3oGIY/c1094Y 4FcwKIYnQQvM9cElQBeVVF2k1UNshuUyeOIDipxjRcJAnsK1U+QYzPcNDHM4nRBQ NYIphp9DXjBwh0gNU6jGZx7r4JJa4vCsFDfoExThHMnmUO5YANAlRQoSPyP79wAy 8tfcjYfdGqIu8BUrqmoQjP9wRPbNaL+jD971jOAHrcWorzpaL4JhCTypDtAAW7fn OmhP+G4kQPtaguJeBsHyHa40iqsDLj0Jclz+Uax3HDnwmzObcGBLCsshlNo7XS0a w== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 4f3u1mte50-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 29 Jun 2026 22:47:22 -0400 (EDT) Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 65U2lLOb032999 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 29 Jun 2026 22:47:21 -0400 Received: from ASHBCASHYB5.ad.analog.com (10.64.17.133) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Mon, 29 Jun 2026 22:47:21 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB5.ad.analog.com (10.64.17.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Mon, 29 Jun 2026 22:47:20 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Mon, 29 Jun 2026 22:47:20 -0400 Received: from ATORRENO-L02.ad.analog.com ([10.66.6.193]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 65U2kqhg019448; Mon, 29 Jun 2026 22:47:10 -0400 From: Alexis Czezar Torreno Date: Tue, 30 Jun 2026 10:46:45 +0800 Subject: [PATCH 3/6] dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-ID: <20260630-dev-max20830c-v1-3-a02786bde470@analog.com> References: <20260630-dev-max20830c-v1-0-a02786bde470@analog.com> In-Reply-To: <20260630-dev-max20830c-v1-0-a02786bde470@analog.com> To: Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Shuah Khan CC: , , , , "Alexis Czezar Torreno" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1782787612; l=2065; i=alexisczezar.torreno@analog.com; s=20250213; h=from:subject:message-id; bh=8U7kmAKRICYYoNm5SriIZ6oz7hryPo3DBJtF+YUcgTw=; b=LTS6Puh6h0E/iQpwDFo6sxC9mpqMacuA0GLLcpolW6aHerMpluBY38XBsDISCiTuOuls5da2P UjzUE8kjLjFCCCJEknKrwXqO2hN54MShi5t33NcJIEz7pQ7TC7gFX3V X-Developer-Key: i=alexisczezar.torreno@analog.com; a=ed25519; pk=XpXmJnRjnsKdDil6YpOlj9+44S+XYXVFnxvkbmaZ+10= X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: HiCiyo_mAbmlEbry2HGSXb4rSa8u0cdB X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjMwMDAyNCBTYWx0ZWRfXzpfXhu2VEaNK /n2jpwfZopgreM6mvHlp0tG56uLVJn3Ugg9ANDP1PMMcodIipIAS0zNO18ZP4zpTAkjTc28GB4d CJcWNB4qnwjiB9IepQRFu8EVPggSaHHomhy5FYgyWdgIS+0Mp9MG/oi/HQEGW/xcLxLBO0Z49ma ktjd7t18XY4nIIPVJSDaS3QCIwdbjVqEmLGc0jNldbSI1UhSGd9Utv0JgDjzKuUDCUqtEkU4nDR X3dPKc98+Km43yQqYSGEAAofvyzvNUGSRDbyMr9CfSoChKBjs7iiaSLUkmZLIYlqEfM8JDJLNmF PNfG41HDaBvVIjPG2yS3sJKt11w3hN3P+5wIp7t034whMCASVUM+GzwkL4HM3ysMaz00JkgexF3 L2iZql5S/bf2m88Siy698tzvqYuKozvSUHNaEFJyXxQZu7TSvcmYVo76sFG+wEpNzWireWHgTec VO4F6fXmwX6RFg2fQJA== X-Proofpoint-GUID: HiCiyo_mAbmlEbry2HGSXb4rSa8u0cdB X-Proofpoint-Spam-Info: AW1haW4tMjYwNjMwMDAyNCBTYWx0ZWRfX5gUHwle+d5px KWUrh8vGe7fj0NhRQBU52hg1JhHjF9ZVNOgkq72787s+brw/2hF20H0bD87cfLkRqaUkgBh3s5+ ms/H8sq1axZAvoGuvbRfZ+bqeir6UYuKvyF8l8qJaQPNczx7ebkX X-Authority-Analysis: v=2.4 cv=R8cz39RX c=1 sm=1 tr=0 ts=6a432e3a cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=OmVn7CZJonkx5R5zMQLL:22 a=gAnH3GRIAAAA:8 a=rAWaG2PsGduRtDMPHBwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-30_01,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 bulkscore=0 spamscore=0 clxscore=1015 phishscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606300024 Add adi,vout-rfb1-ohms and adi,vout-rfb2-ohms properties to support external voltage divider configuration for VOUT sensing. When the desired output voltage is higher than VREF, a resistor divider (RFB1 and RFB2) is required to reach the intended value. The properties use a dependency constraint to ensure both resistors are specified together, or neither. This prevents misconfiguration where only one resistor value is provided. Signed-off-by: Alexis Czezar Torreno --- .../devicetree/bindings/hwmon/pmbus/adi,max20830.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml index ab8f6324866f29de8c66c3c63300845b2e02207e..caedad40bc592c8489df235f02c6ff051070cb1e 100644 --- a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml +++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml @@ -49,11 +49,26 @@ properties: GPIO connected to the power-good status output pin. maxItems: 1 + adi,vout-rfb1-ohms: + description: + Top feedback resistor (RFB1) value in ohms for VOUT sensing divider. + When the desired output voltage is higher than VREF, a resistor divider + is required. VOUT = VREF × (1 + RFB1/RFB2) + + adi,vout-rfb2-ohms: + description: + Bottom feedback resistor (RFB2) value in ohms for VOUT sensing divider. + Datasheet recommends that RFB2 does not exceed 2.5kΩ. + required: - compatible - reg - vddh-supply +dependencies: + adi,vout-rfb1-ohms: ['adi,vout-rfb2-ohms'] + adi,vout-rfb2-ohms: ['adi,vout-rfb1-ohms'] + unevaluatedProperties: false examples: @@ -66,6 +81,8 @@ examples: compatible = "adi,max20830"; reg = <0x30>; vddh-supply = <&vddh>; + adi,vout-rfb1-ohms = <10000>; + adi,vout-rfb2-ohms = <2000>; }; }; ... -- 2.34.1