From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7A12ECD4F5B for ; Tue, 19 May 2026 15:28:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ybKseu4uG1MNY6IQoD8TBrLpm9iKlKVO0I43NmR8gBU=; b=m4wlnY0j+SgzK9sCH8CI9W9LF7 YRhg6g24BkFsx+6BRGOJwJ7OAKYlOnafDTeCy1yHQI3XyM0zJdJn5XiuhY2h3gZZGv3tLatk7ayXM oaKlwSEwrJ2/K77kw7t1uzzc3EVdFY3iz8Pc3KsoIoJYGtUXeqX+Qjfz2BoOfh/rgfW019AVArtwE x/rkSzLylbnPV8brX8MacZOd9pek8rU35UZMJb+HJyxbzs32Z6waijwlW/WPi0go4Ug7u63fkqVd5 bB7NOsU0hVe9i618H6igiOmhO9TIlY5FRv6+Kj9HAAMfA7XBPvBVHZxlS3WtdcEXTfFdXEgsFPLkJ mJDX/T7Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPMMp-000000023Hx-0CvG; Tue, 19 May 2026 15:28:23 +0000 Received: from mail-pl1-x661.google.com ([2607:f8b0:4864:20::661]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPMMm-000000023Gs-3Kt0 for linux-arm-kernel@lists.infradead.org; Tue, 19 May 2026 15:28:22 +0000 Received: by mail-pl1-x661.google.com with SMTP id d9443c01a7336-2b941cd869cso22436375ad.1 for ; Tue, 19 May 2026 08:28:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779204500; x=1779809300; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:dkim-signature:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=ybKseu4uG1MNY6IQoD8TBrLpm9iKlKVO0I43NmR8gBU=; b=tRCeGGeW4uJ92H72XfnaQqdWTGfuUYdrHinBogGlWrN9elOwjXK3L9WR1czRwgrSO+ hIdZr/p6ob1ZHymLc7RmfPHjdbLNpOALvjSzBOQnrMlaShMLTqp7BnFe0NK1Bk6xJPu5 4zSBFux0kV0ogHs1Tk3AL4tFBQW4wMcpJJShlVnDWKgZtR7FKSu7Xsr8MDOWexz3Sy8q gFMftaVv7tiE8ovjc96mjXEjBelZ9/C+RM1NRz/ihw3ZhVdjeMo6meJ3LQ+5McxiyV+i overKcpEkc3ncGlRffjDja8JzpfEW6u43a+HZSQYWSaO0kwFhs91O6Fe4U3dpgtdeNqM lGoQ== X-Forwarded-Encrypted: i=1; AFNElJ9q+3VFyyW2RVLKu7FpI7J+crdQKmFlrGgtz0aZt4Qazl244v4G8oYmUTDfloiInLGHc8elTb62xifSrruUXT7H@lists.infradead.org X-Gm-Message-State: AOJu0Yy2KMkRFUv/dhpWirUB+G3zw7+9r0jgRZ4ZnlhVENTcFf0zIyTQ b9GYhIiuFGHsRVOg0Y++QBdJhPLAU0kzDIBfKVFSWevxiideoy/J1GWbhVLDd0DqtZJwtCRdPCs i5EnUre2vNZj+UpNi95zEWGfIp9cG2oR+HQiji+JBMTcj/71Vs9vl96hMT/W4sqa4FyWBmME4ME Iq8i3aJ63zSGa9N25TNa3IUxCzeRejfEM81KnXb93kMd4e0TjYElfflUnIvWQoazDKH84Kh3PI+ nsarsYGI8v9sI6hOVowyJDRy9t439kmoL8= X-Gm-Gg: Acq92OENPc/qy0qw8JSNfEDJ8YjDGdUL8Nd99K50zXZJ2ALJC7NzcQ2QwpAbDcTqYAn ktJr2++8RGu+Fyo3EiBTLTSSQUZM3xO37s3b+KLVm4bOwfchwEM5DHOqU0CI03ZFzHhqR+ooaNI EXeB3hL2615XAjExvjI0dBLgizkknS76xfNE8pDSKxwReIM9YT2YeP6sw58d/h4IwcYypRlsoGV jE9cILbODZPDnuALbuJ6Q+zxMmfkjUTXhwInEQJbnsEk8zZcbsX5gdSsK+SS7XYwbVzzFuCmh7K voUWgAvyYxHiHd9KF0/0uwNfCFpbzpEuyxnKoUr8kbRRrWkwwP87/YR5TPH4ZMF4R+y2/ZMFuy0 s/qXjrOCePhuhVMhfvAaHr4YeelVRGaByXYmt8caBDP4LbtkVoX90QQ7OUM0EuTOC2vN7pUvFqD 3UrMp8In3O/d/AxPsqXD7GHEM8nU76TFdTjuWlelTNll8Sl0c8nkLpq/JtME14NA== X-Received: by 2002:a17:902:ea03:b0:2bd:9c0a:32c with SMTP id d9443c01a7336-2bd9c0a065cmr163578325ad.19.1779204499741; Tue, 19 May 2026 08:28:19 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-24.dlp.protect.broadcom.com. [144.49.247.24]) by smtp-relay.gmail.com with ESMTPS id d9443c01a7336-2bd5ced2ca3sm13497565ad.29.2026.05.19.08.28.19 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 May 2026 08:28:19 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-qv1-f72.google.com with SMTP id 6a1803df08f44-8b1f4478ca7so124851116d6.3 for ; Tue, 19 May 2026 08:28:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1779204498; x=1779809298; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to; bh=ybKseu4uG1MNY6IQoD8TBrLpm9iKlKVO0I43NmR8gBU=; b=KnMOX449KxYvSwZWt9KXLx+Yb6iW33ORWN/kBW/TKeOeyhhhJvt/iURxL8UJ/1laCW U1m/SvWvmoPs54wfJBpTVOb1M8Y9J+G69NFmHMYA8/5RULemH7G/ARVYzF96UV+8IWoS TKQxLCQSLHy1c/O8fwsuK+tyXeoXvee2ZKp6k= X-Forwarded-Encrypted: i=1; AFNElJ+Y0Lztm9rbA0D7/+Oz2fU5LxoChAZdUWXduBIEQUvKTgyqr3iJloriIC+Hr1dsDFwv5i5cnd65ltmIcymbPZIX@lists.infradead.org X-Received: by 2002:a05:6214:484a:b0:8bd:1f2e:7063 with SMTP id 6a1803df08f44-8ca0f643076mr294961726d6.5.1779204498138; Tue, 19 May 2026 08:28:18 -0700 (PDT) X-Received: by 2002:a05:6214:484a:b0:8bd:1f2e:7063 with SMTP id 6a1803df08f44-8ca0f643076mr294960916d6.5.1779204497466; Tue, 19 May 2026 08:28:17 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8ca3619c29asm93644856d6.34.2026.05.19.08.28.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 May 2026 08:28:16 -0700 (PDT) Message-ID: <31af08eb-8299-4ba9-aaa7-3150ce31b523@broadcom.com> Date: Tue, 19 May 2026 08:28:14 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/3] hwmon: raspberrypi: Add voltage input support To: Shubham Chakraborty , Guenter Roeck , Jonathan Corbet Cc: Shuah Khan , Broadcom internal kernel review list , Ray Jui , Scott Branden , linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260516164407.25255-1-chakrabortyshubham66@gmail.com> <20260517080445.103962-1-chakrabortyshubham66@gmail.com> <20260517080445.103962-3-chakrabortyshubham66@gmail.com> Content-Language: en-US, fr-FR From: Florian Fainelli Autocrypt: addr=florian.fainelli@broadcom.com; keydata= xsBNBFPAG8ABCAC3EO02urEwipgbUNJ1r6oI2Vr/+uE389lSEShN2PmL3MVnzhViSAtrYxeT M0Txqn1tOWoIc4QUl6Ggqf5KP6FoRkCrgMMTnUAINsINYXK+3OLe7HjP10h2jDRX4Ajs4Ghs JrZOBru6rH0YrgAhr6O5gG7NE1jhly+EsOa2MpwOiXO4DE/YKZGuVe6Bh87WqmILs9KvnNrQ PcycQnYKTVpqE95d4M824M5cuRB6D1GrYovCsjA9uxo22kPdOoQRAu5gBBn3AdtALFyQj9DQ KQuc39/i/Kt6XLZ/RsBc6qLs+p+JnEuPJngTSfWvzGjpx0nkwCMi4yBb+xk7Hki4kEslABEB AAHNMEZsb3JpYW4gRmFpbmVsbGkgPGZsb3JpYW4uZmFpbmVsbGlAYnJvYWRjb20uY29tPsLB IQQQAQgAywUCZWl41AUJI+Jo+hcKAAG/SMv+fS3xUQWa0NryPuoRGjsA3SAUAAAAAAAWAAFr ZXktdXNhZ2UtbWFza0BwZ3AuY29tjDAUgAAAAAAgAAdwcmVmZXJyZWQtZW1haWwtZW5jb2Rp bmdAcGdwLmNvbXBncG1pbWUICwkIBwMCAQoFF4AAAAAZGGxkYXA6Ly9rZXlzLmJyb2FkY29t Lm5ldAUbAwAAAAMWAgEFHgEAAAAEFQgJChYhBNXZKpfnkVze1+R8aIExtcQpvGagAAoJEIEx tcQpvGagWPEH/2l0DNr9QkTwJUxOoP9wgHfmVhqc0ZlDsBFv91I3BbhGKI5UATbipKNqG13Z TsBrJHcrnCqnTRS+8n9/myOF0ng2A4YT0EJnayzHugXm+hrkO5O9UEPJ8a+0553VqyoFhHqA zjxj8fUu1px5cbb4R9G4UAySqyeLLeqnYLCKb4+GklGSBGsLMYvLmIDNYlkhMdnnzsSUAS61 WJYW6jjnzMwuKJ0ZHv7xZvSHyhIsFRiYiEs44kiYjbUUMcXor/uLEuTIazGrE3MahuGdjpT2 IOjoMiTsbMc0yfhHp6G/2E769oDXMVxCCbMVpA+LUtVIQEA+8Zr6mX0Yk4nDS7OiBlvOwE0E U8AbwQEIAKxr71oqe+0+MYCc7WafWEcpQHFUwvYLcdBoOnmJPxDwDRpvU5LhqSPvk/yJdh9k 4xUDQu3rm1qIW2I9Puk5n/Jz/lZsqGw8T13DKyu8eMcvaA/irm9lX9El27DPHy/0qsxmxVmU pu9y9S+BmaMb2CM9IuyxMWEl9ruWFS2jAWh/R8CrdnL6+zLk60R7XGzmSJqF09vYNlJ6Bdbs MWDXkYWWP5Ub1ZJGNJQ4qT7g8IN0qXxzLQsmz6tbgLMEHYBGx80bBF8AkdThd6SLhreCN7Uh IR/5NXGqotAZao2xlDpJLuOMQtoH9WVNuuxQQZHVd8if+yp6yRJ5DAmIUt5CCPcAEQEAAcLB gQQYAQIBKwUCU8AbwgUbDAAAAMBdIAQZAQgABgUCU8AbwQAKCRCTYAaomC8PVQ0VCACWk3n+ obFABEp5Rg6Qvspi9kWXcwCcfZV41OIYWhXMoc57ssjCand5noZi8bKg0bxw4qsg+9cNgZ3P N/DFWcNKcAT3Z2/4fTnJqdJS//YcEhlr8uGs+ZWFcqAPbteFCM4dGDRruo69IrHfyyQGx16s CcFlrN8vD066RKevFepb/ml7eYEdN5SRALyEdQMKeCSf3mectdoECEqdF/MWpfWIYQ1hEfdm C2Kztm+h3Nkt9ZQLqc3wsPJZmbD9T0c9Rphfypgw/SfTf2/CHoYVkKqwUIzI59itl5Lze+R5 wDByhWHx2Ud2R7SudmT9XK1e0x7W7a5z11Q6vrzuED5nQvkhAAoJEIExtcQpvGagugcIAJd5 EYe6KM6Y6RvI6TvHp+QgbU5dxvjqSiSvam0Ms3QrLidCtantcGT2Wz/2PlbZqkoJxMQc40rb fXa4xQSvJYj0GWpadrDJUvUu3LEsunDCxdWrmbmwGRKqZraV2oG7YEddmDqOe0Xm/NxeSobc MIlnaE6V0U8f5zNHB7Y46yJjjYT/Ds1TJo3pvwevDWPvv6rdBeV07D9s43frUS6xYd1uFxHC 7dZYWJjZmyUf5evr1W1gCgwLXG0PEi9n3qmz1lelQ8lSocmvxBKtMbX/OKhAfuP/iIwnTsww 95A2SaPiQZA51NywV8OFgsN0ITl2PlZ4Tp9hHERDe6nQCsNI/Us= In-Reply-To: <20260517080445.103962-3-chakrabortyshubham66@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260519_082820_843389_C6532259 X-CRM114-Status: GOOD ( 12.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 5/17/26 01:04, Shubham Chakraborty wrote: > Extend the raspberrypi-hwmon driver to expose firmware-provided > voltage measurements through the hwmon subsystem. > > The driver now exports the following voltage inputs: > > - in0_input (core) > - in1_input (sdram_c) > - in2_input (sdram_i) > - in3_input (sdram_p) > > Voltage values returned by firmware are converted from microvolts > to millivolts as expected by the hwmon subsystem. > > Update the documentation related to it. > > The existing undervoltage sticky alarm handling is preserved and > associated with the first voltage channel. > > Tested in - > - Raspberry Pi 3b+ (Linux raspberrypi 6.12.75+rpt-rpi-v8 #1 SMP PREEMPT > Debian 1:6.12.75-1+rpt1 (2026-03-11) aarch64 GNU/Linux) > > Signed-off-by: Shubham Chakraborty Reviewed-by: Florian Fainelli -- Florian