linux-kernel - Re: [PATCH 1/3] dt-bindings: iio: adc: ltc2497: add docs for LTC2495

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Message-ID: <cfe595e6-ddb3-4eb3-97df-ba77a2fb66db@kernel.org>
Date: Sun, 17 Aug 2025 09:11:54 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Yusuf Alper Bilgin <y.alperbilgin@...il.com>
Cc: Michael.Hennerich@...log.com, andy@...nel.org, conor+dt@...nel.org,
 devicetree@...r.kernel.org, dlechner@...libre.com, jic23@...nel.org,
 krzk+dt@...nel.org, lars@...afoo.de, liambeguin@...il.com,
 linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, nuno.sa@...log.com,
 robh@...nel.org
Subject: Re: [PATCH 1/3] dt-bindings: iio: adc: ltc2497: add docs for LTC2495

On 13/08/2025 10:44, Yusuf Alper Bilgin wrote:
> Hi Krzysztof,
> 
> Thank you for the review and guidance.
> 
> On Tue, Aug 12, 2025 at 07:04:00PM +0200, Krzysztof Kozlowski wrote:
>> What are the differences, why it cannot be made compatible with 2497
>> (fallback)?
> 
> The LTC2495 offers a more advanced feature set compared to the LTC2497,
> including:
> 
> - Adjustable input gain
> - A selectable 50Hz/60Hz lowpass filter to reject line frequency noise
> - Selectable speed modes
> - An internal temperature sensor

"More advanced" does not mean it is not compatible. If old device (less
advanced) features are working the same, it is the exact meaning of
compatible devices.


Best regards,
Krzysztof