From: "Łukasz Majewski" <lukma@nabladev.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Shawn Guo <shawnguo@kernel.org>,
Guenter Roeck <linux@roeck-us.net>,
Daniel Baluta <daniel.baluta@nxp.com>,
Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/3] dt-bindings: trivial-devices: Add National lm77 temperature sensor
Date: Fri, 13 Nov 2026 12:09:47 +0100 [thread overview]
Message-ID: <20261113120947.6c9fb820@wsk> (raw)
In-Reply-To: <20261113-roaring-relaxed-oryx-5cfa1e@quoll>
Hi Krzysztof,
> On Thu, Nov 12, 2026 at 05:37:02PM +0100, Lukasz Majewski wrote:
> > Add "national,lm77" as compatible for the National (now TI) LM77
> > digital I2C temperature sensor.
>
> Are you sure this is a trivial device, not like LM75? No interrupts,
> no VS supply? Datasheet disagrees.
In my case the T_CRIT_A and INT are not connected on the schematic.
Moreover, the V+ is connected to board's 3V3.
Hence, the conclusion that this sensor works as "simple" I2C based
temperature sensor.
>
> Best regards,
> Krzysztof
>
--
Best regards,
Lukasz Majewski
--
Nabla Software Engineering GmbH
HRB 40522 Augsburg
Phone: +49 821 45592596
E-Mail: office@nabladev.com
Managing Director : Stefano Babic
next prev parent reply other threads:[~2026-11-13 11:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-12 16:37 [PATCH v2 1/3] dt-bindings: arm: fsl: Add an entry for Cloos CBASE board Lukasz Majewski
2026-11-12 16:37 ` [PATCH v2 2/3] dt-bindings: trivial-devices: Add National lm77 temperature sensor Lukasz Majewski
2026-11-13 10:11 ` Krzysztof Kozlowski
2026-11-13 11:09 ` Łukasz Majewski [this message]
2026-11-12 16:37 ` [PATCH v2 3/3] arm64: dts: freescale: Add device tree definition for Cloos CBASE with i.MX8MM Lukasz Majewski
2026-11-12 17:36 ` Frank Li
2026-11-13 10:11 ` [PATCH v2 1/3] dt-bindings: arm: fsl: Add an entry for Cloos CBASE board Krzysztof Kozlowski
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