From: Matti Vaittinen <mazziesaccount@gmail.com>
To: Guenter Roeck <linux@roeck-us.net>,
Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
Matti Vaittinen <matti.vaittinen@linux.dev>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
Wensheng Wang <wenswang@yeah.net>,
Ashish Yadav <ashish.yadav@infineon.com>,
Kim Seer Paller <kimseer.paller@analog.com>,
Cedric Encarnacion <cedricjustine.encarnacion@analog.com>,
Chris Packham <chris.packham@alliedtelesis.co.nz>,
Yuxi Wang <Yuxi.Wang@monolithicpower.com>,
Charles Hsu <hsu.yungteng@gmail.com>,
ChiShih Tsai <tomtsai764@gmail.com>,
linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH 6/7] hwmon: adm1275: Support ROHM BD12790
Date: Wed, 17 Jun 2026 08:57:58 +0300 [thread overview]
Message-ID: <a7f0ca96-d6bb-4106-ac47-b9f646fa26cf@gmail.com> (raw)
In-Reply-To: <d66b9de3-db06-4f83-9c2a-b45e341bfc9c@roeck-us.net>
On 16/06/2026 17:15, Guenter Roeck wrote:
> On 6/15/26 23:44, Matti Vaittinen wrote:
>> From: Matti Vaittinen <mazziesaccount@gmail.com>
>>
>> Add support for ROHM BD12790 hot-swap controller which is largely
>> similar to Analog Devices adm1272.
>>
>> The BD12790 uses the same selectable 60V/100V voltage ranges and
>> 15mV/30mV current-sense ranges as the ADM1272, and the same VRANGE
>> (bit 5) and IRANGE (bit 0) layout in PMON_CONFIG. It therefore uses
>> a dedicated coefficient table that mirrors adm1272_coefficients, with
>> the following differences derived from BD12790 datasheet Table 1 (p.18):
>> - power 60V/30mV: m=17560 (vs. 17561)
>> - power 100V/30mV: m=10536 (vs. 10535)
>> - temperature: b=31880 (vs. 31871, reflecting T[11:0] = 4.2*T + 3188)
>>
>> Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
>> Assisted-by: GitHub Copilot:claude-sonnet-4.6
>>
>> ---
// snip
>> -/* The BD12780 data sheets mark TSFILT bit as reserved. */
>> -#define BD12780_PMON_DEFCONFIG (ADM1278_VOUT_EN |
>> ADM1278_TEMP1_EN)
>> +/* The BD127x0 data sheets mark TSFILT bit as reserved. */
>> +#define BD127X0_PMON_DEFCONFIG (ADM1278_VOUT_EN |
>> ADM1278_TEMP1_EN)
>
> Please don't use such placeholders. Just use BD12780_PMON_DEFCONFIG
> for both chips, similar to how the defines for all other chips
> are handled.
Ok, thanks.
Yours,
-- Matti
--
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland
~~ When things go utterly wrong vim users can always type :help! ~~
next prev parent reply other threads:[~2026-06-17 5:58 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-16 6:33 [PATCH 0/7] Support ROHM BD127x0 hot-swap controllers Matti Vaittinen
2026-06-16 6:35 ` [PATCH 1/7] dt-bindings: adm1275: ROHM BD12780 hot-swap controller Matti Vaittinen
2026-06-17 10:28 ` Krzysztof Kozlowski
2026-06-25 7:05 ` Matti Vaittinen
2026-06-25 7:21 ` Krzysztof Kozlowski
2026-06-16 6:36 ` [PATCH 2/7] doc: Add ROHM BD12780 and BD12780A Matti Vaittinen
2026-06-16 6:36 ` [PATCH 3/7] hwmon: adm1275: Support ROHM BD12780 Matti Vaittinen
2026-06-16 14:13 ` Guenter Roeck
2026-06-17 5:48 ` Matti Vaittinen
2026-06-17 13:50 ` Guenter Roeck
2026-06-16 6:37 ` [PATCH 4/7] dt-bindings: adm1275: ROHM BD12790 hot-swap controller Matti Vaittinen
2026-06-16 15:54 ` Conor Dooley
2026-06-16 6:38 ` [PATCH 5/7] doc: adm1275: Add ROHM BD12790 Matti Vaittinen
2026-06-16 6:44 ` [PATCH 6/7] hwmon: adm1275: Support " Matti Vaittinen
2026-06-16 14:08 ` Guenter Roeck
2026-06-17 5:56 ` Matti Vaittinen
2026-06-17 13:54 ` Guenter Roeck
2026-06-16 14:15 ` Guenter Roeck
2026-06-17 5:57 ` Matti Vaittinen [this message]
2026-06-16 6:47 ` [PATCH 7/7] hwmon: adm1275: Support module auto-loading Matti Vaittinen
2026-06-16 14:04 ` Guenter Roeck
2026-06-17 6:00 ` Matti Vaittinen
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