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([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-835158aa1ffsm509604b3a.22.2026.04.30.13.18.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Apr 2026 13:18:50 -0700 (PDT) Sender: Guenter Roeck Message-ID: Date: Thu, 30 Apr 2026 13:18:49 -0700 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/3] Documentation/hwmon: add Delta E50SN12051 documentation To: u8813345@gmail.com, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kevin Chang , Jonathan Corbet , Shuah Khan Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Colin Huang References: <20260430-add-e50sn12051-v3-0-f6d4e043ec7c@gmail.com> <20260430-add-e50sn12051-v3-2-f6d4e043ec7c@gmail.com> Content-Language: en-US From: Guenter Roeck Autocrypt: addr=linux@roeck-us.net; keydata= xsFNBE6H1WcBEACu6jIcw5kZ5dGeJ7E7B2uweQR/4FGxH10/H1O1+ApmcQ9i87XdZQiB9cpN RYHA7RCEK2dh6dDccykQk3bC90xXMPg+O3R+C/SkwcnUak1UZaeK/SwQbq/t0tkMzYDRxfJ7 nyFiKxUehbNF3r9qlJgPqONwX5vJy4/GvDHdddSCxV41P/ejsZ8PykxyJs98UWhF54tGRWFl 7i1xvaDB9lN5WTLRKSO7wICuLiSz5WZHXMkyF4d+/O5ll7yz/o/JxK5vO/sduYDIlFTvBZDh gzaEtNf5tQjsjG4io8E0Yq0ViobLkS2RTNZT8ICq/Jmvl0SpbHRvYwa2DhNsK0YjHFQBB0FX IdhdUEzNefcNcYvqigJpdICoP2e4yJSyflHFO4dr0OrdnGLe1Zi/8Xo/2+M1dSSEt196rXaC kwu2KgIgmkRBb3cp2vIBBIIowU8W3qC1+w+RdMUrZxKGWJ3juwcgveJlzMpMZNyM1jobSXZ0 VHGMNJ3MwXlrEFPXaYJgibcg6brM6wGfX/LBvc/haWw4yO24lT5eitm4UBdIy9pKkKmHHh7s jfZJkB5fWKVdoCv/omy6UyH6ykLOPFugl+hVL2Prf8xrXuZe1CMS7ID9Lc8FaL1ROIN/W8Vk BIsJMaWOhks//7d92Uf3EArDlDShwR2+D+AMon8NULuLBHiEUQARAQABzTJHdWVudGVyIFJv ZWNrIChMaW51eCBhY2NvdW50KSA8bGludXhAcm9lY2stdXMubmV0PsLBgQQTAQIAKwIbAwYL CQgHAwIGFQgCCQoLBBYCAwECHgECF4ACGQEFAmgrMyQFCSbODQkACgkQyx8mb86fmYGcWRAA oRwrk7V8fULqnGGpBIjp7pvR187Yzx+lhMGUHuM5H56TFEqeVwCMLWB2x1YRolYbY4MEFlQg VUFcfeW0OknSr1s6wtrtQm0gdkolM8OcCL9ptTHOg1mmXa4YpW8QJiL0AVtbpE9BroeWGl9v 2TGILPm9mVp+GmMQgkNeCS7Jonq5f5pDUGumAMguWzMFEg+Imt9wr2YA7aGen7KPSqJeQPpj onPKhu7O/KJKkuC50ylxizHzmGx+IUSmOZxN950pZUFvVZH9CwhAAl+NYUtcF5ry/uSYG2U7 DCvpzqOryJRemKN63qt1bjF6cltsXwxjKOw6CvdjJYA3n6xCWLuJ6yk6CAy1Ukh545NhgBAs rGGVkl6TUBi0ixL3EF3RWLa9IMDcHN32r7OBhw6vbul8HqyTFZWY2ksTvlTl+qG3zV6AJuzT WdXmbcKN+TdhO5XlxVlbZoCm7ViBj1+PvIFQZCnLAhqSd/DJlhaq8fFXx1dCUPgQDcD+wo65 qulV/NijfU8bzFfEPgYP/3LP+BSAyFs33y/mdP8kbMxSCjnLEhimQMrSSo/To1Gxp5C97fw5 3m1CaMILGKCmfI1B8iA8zd8ib7t1Rg0qCwcAnvsM36SkrID32GfFbv873bNskJCHAISK3Xkz qo7IYZmjk/IJGbsiGzxUhvicwkgKE9r7a1rOwU0ETofVZwEQALlLbQeBDTDbwQYrj0gbx3bq 7kpKABxN2MqeuqGr02DpS9883d/t7ontxasXoEz2GTioevvRmllJlPQERVxM8gQoNg22twF7 pB/zsrIjxkE9heE4wYfN1AyzT+AxgYN6f8hVQ7Nrc9XgZZe+8IkuW/Nf64KzNJXnSH4u6nJM J2+Dt274YoFcXR1nG76Q259mKwzbCukKbd6piL+VsT/qBrLhZe9Ivbjq5WMdkQKnP7gYKCAi pNVJC4enWfivZsYupMd9qn7Uv/oCZDYoBTdMSBUblaLMwlcjnPpOYK5rfHvC4opxl+P/Vzyz 6WC2TLkPtKvYvXmdsI6rnEI4Uucg0Au/Ulg7aqqKhzGPIbVaL+U0Wk82nz6hz+WP2ggTrY1w ZlPlRt8WM9w6WfLf2j+PuGklj37m+KvaOEfLsF1v464dSpy1tQVHhhp8LFTxh/6RWkRIR2uF I4v3Xu/k5D0LhaZHpQ4C+xKsQxpTGuYh2tnRaRL14YMW1dlI3HfeB2gj7Yc8XdHh9vkpPyuT nY/ZsFbnvBtiw7GchKKri2gDhRb2QNNDyBnQn5mRFw7CyuFclAksOdV/sdpQnYlYcRQWOUGY HhQ5eqTRZjm9z+qQe/T0HQpmiPTqQcIaG/edgKVTUjITfA7AJMKLQHgp04Vylb+G6jocnQQX JqvvP09whbqrABEBAAHCwWUEGAECAA8CGwwFAmgrMyQFCSbODQkACgkQyx8mb86fmYHlgg/9 H5JeDmB4jsreE9Bn621wZk7NMzxy9STxiVKSh8Mq4pb+IDu1RU2iLyetCY1TiJlcxnE362kj njrfAdqyPteHM+LU59NtEbGwrfcXdQoh4XdMuPA5ADetPLma3YiRa3VsVkLwpnR7ilgwQw6u dycEaOxQ7LUXCs0JaGVVP25Z2hMkHBwx6BlW6EZLNgzGI2rswSZ7SKcsBd1IRHVf0miwIFYy j/UEfAFNW+tbtKPNn3xZTLs3quQN7GdYLh+J0XxITpBZaFOpwEKV+VS36pSLnNl0T5wm0E/y scPJ0OVY7ly5Vm1nnoH4licaU5Y1nSkFR/j2douI5P7Cj687WuNMC6CcFd6j72kRfxklOqXw zvy+2NEcXyziiLXp84130yxAKXfluax9sZhhrhKT6VrD45S6N3HxJpXQ/RY/EX35neH2/F7B RgSloce2+zWfpELyS1qRkCUTt1tlGV2p+y2BPfXzrHn2vxvbhEn1QpQ6t+85FKN8YEhJEygJ F0WaMvQMNrk9UAUziVcUkLU52NS9SXqpVg8vgrO0JKx97IXFPcNh0DWsSj/0Y8HO/RDkGXYn FDMj7fZSPKyPQPmEHg+W/KzxSSfdgWIHF2QaQ0b2q1wOSec4Rti52ohmNSY+KNIW/zODhugJ np3900V20aS7eD9K8GTU0TGC1pyz6IVJwIE= In-Reply-To: <20260430-add-e50sn12051-v3-2-f6d4e043ec7c@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 4/29/26 23:16, Colin Huang via B4 Relay wrote: > From: Colin Huang > > Document the hardware monitoring support for the Delta E50SN12051 > device. > > The documentation describes the supported sensors exposed via the > hwmon subsystem, including voltage, current, and temperature measurements. > > Signed-off-by: Colin Huang For my reference: Reviewed-by: Guenter Roeck > --- > Documentation/hwmon/e50sn12051.rst | 81 ++++++++++++++++++++++++++++++++++++++ > Documentation/hwmon/index.rst | 1 + > 2 files changed, 82 insertions(+) > > diff --git a/Documentation/hwmon/e50sn12051.rst b/Documentation/hwmon/e50sn12051.rst > new file mode 100644 > index 000000000000..cbbfa7895d82 > --- /dev/null > +++ b/Documentation/hwmon/e50sn12051.rst > @@ -0,0 +1,81 @@ > +.. SPDX-License-Identifier: GPL-2.0-or-later > + > +Kernel driver e50sn12051 > +======================== > + > +Supported chips: > + > + * Delta E50SN12051 > + > + Prefix: 'e50sn12051' > + > + Addresses scanned: - > + > + Datasheet: > + > + Provided by Delta upon request and NDA > + > +Description > +----------- > + > +E50SN12051 is a 600W non-isolated 1/8th brick DC-DC power module. > + > +This driver supports the E50SN12051 PMBus compliant monitor device. > + > +The device provides measurements for: > + > +* Input voltage > +* Output current > +* Output voltage > +* Temperature > + > +The driver is based on the PMBus core and exposes standard hwmon > +sysfs attributes. > + > +Sysfs attributes > +---------------- > + > +======================= ======================================================= > +curr1_label "iout1" > +curr1_crit Critical maximum current. > + From IOUT_OC_FAULT_LIMIT register. > +curr1_crit_alarm Current critical high alarm. > + From IOUT_OC_FAULT status. > +curr1_input Measured current. > + From READ_IOUT register. > +curr1_max Maximum current. > + From IOUT_OC_WARN_LIMIT register. > +curr1_max_alarm Current high alarm. > + From IOUT_OC_WARN_LIMIT status. > + > +in1_label "vin" > +in1_alarm Input voltage alarm. > +in1_input Measured voltage. > + From READ_VIN register. > + > +in2_label "vout1" > +in2_crit Critical maximum voltage. > + From VOUT_OV_FAULT_LIMIT register. > +in2_crit_alarm Voltage critical high alarm. > + From VOLTAGE_OV_FAULT status. > +in2_input Measured voltage. > + From READ_VOUT register. > +in2_max Maximum voltage. > + From VOUT_OV_WARN_LIMIT register. > +in2_max_alarm Voltage high alarm. > + From VOLTAGE_OV_WARNING status. > + > +temp1_crit Critical high temperature. > + From OT_FAULT_LIMIT register. > +temp1_crit_alarm Module temperature critical high alarm. > + Set by comparing READ_TEMPERATURE_1 with OT_FAULT_LIMIT > + if TEMP_OT_FAULT status is set. > +temp1_input Measured module's hot spot temperature. > + From READ_TEMPERATURE_1 register. > +temp1_max Maximum temperature. > + From OT_WARN_LIMIT register. > +temp1_max_alarm Module temperature high alarm. > + Set by comparing READ_TEMPERATURE_1 with OT_WARN_LIMIT if > + TEMP_OT_WARNING status is set. > +======================= ======================================================= > + > diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst > index 8b655e5d6b68..ba08655fc496 100644 > --- a/Documentation/hwmon/index.rst > +++ b/Documentation/hwmon/index.rst > @@ -68,6 +68,7 @@ Hardware Monitoring Kernel Drivers > drivetemp > ds1621 > ds620 > + e50sn12051 > emc1403 > emc2103 > emc2305 >