linux-kernel - Re: [PATCH v2 0/2] iio: light: Add support for Capella cm36686 and cm36672p sensors

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Message-ID: <73ec81de-86f8-477c-a5ca-aae83528dfab@gmail.com>
Date: Mon, 9 Feb 2026 20:20:07 +0200
From: Erikas Bitovtas <xerikasxx@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...el.com>
Cc: Jonathan Cameron <jic23@...nel.org>, David Lechner
 <dlechner@...libre.com>, Nuno Sá <nuno.sa@...log.com>,
 Andy Shevchenko <andy@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Kevin Tsai <ktsai@...ellamicro.com>,
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
 phone-devel@...r.kernel.org
Subject: Re: [PATCH v2 0/2] iio: light: Add support for Capella cm36686 and
 cm36672p sensors



On 2/9/26 5:49 PM, Andy Shevchenko wrote:
> On Mon, Feb 09, 2026 at 05:48:22PM +0200, Andy Shevchenko wrote:
>> On Mon, Feb 09, 2026 at 04:23:40PM +0200, Erikas Bitovtas wrote:
>>> This patch series adds support for Capella cm36686 and cm36672p ambient
>>> light and proximity sensors.
>>>
>>> Capella cm36686 is a combined ambient light and proximity sensor with
>>> adjustable integration time, interrupt and hysteresis support. It has
>>> the slave address of 0x60. cm36672p is fully compatible with cm36686,
>>> except that it is a proximity-only sensor.
>>
>> So, can we share the code (assuming there is a driver and it already
>> uses or may be converted to regmap APIs)?
> 
> Ah, it's being added with the same driver... So, have you checked if there is
> any similar HW with the available driver in upstream?
> 

I checked only for other Capella sensors, I forgot that Vishay acquired Capella
Microsystems. Now that I checked, vcnl4040 uses the same registers and regfields
as cm36686 and can be used instead...
I am sorry for wasting your time. Should I add a fallback to vcnl4040's
devicetree schema and add cm36672p support by excluding the light channels instead?