From: Krzysztof Kozlowski <krzk@kernel.org>
To: "Łukasz Majewski" <lukma@nabladev.com>
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 12:20:08 +0100 [thread overview]
Message-ID: <c6095d41-09a4-4928-a55e-f4af7a5509da@kernel.org> (raw)
In-Reply-To: <20261113120947.6c9fb820@wsk>
On 13/11/2026 12:09, Łukasz Majewski wrote:
> 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.
But they are there and binding should be complete. What's more, existing
lm75 binding does not require these so there is no issue adding to the
existing binding file.
>
> Hence, the conclusion that this sensor works as "simple" I2C based
> temperature sensor.
Only because you posted incomplete binding...
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-11-13 11:20 UTC|newest]
Thread overview: 8+ 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
2026-11-13 11:20 ` Krzysztof Kozlowski [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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