linux-kernel - Re: [PATCH 0/2] iio: light: add support for AMS AS7331

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Date: Sat, 23 Dec 2023 13:18:42 +0100
From: Christian Eggers <ceggers@....de>
To: Christian Eggers <ceggers@...i.de>, Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, Javier Carrasco <javier.carrasco.cruz@...il.com>
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, Javier Carrasco <javier.carrasco.cruz@...il.com>
Subject: Re: [PATCH 0/2] iio: light: add support for AMS AS7331

Am Samstag, 23. Dezember 2023, 11:46:12 CET schrieb Javier Carrasco:
> The AMS AS7331 UV light sensor measures three ultraviolet bands (UVA,
> UVB and UVC, also known as deep UV or DUV) as well as temperature.
>
> This device is practically identical to the AMS AS73211 XYZ True Color
> sensor that is already supported by the iio subsystem, except for the
> photodiodes used to aquire the desired light wavelengths.
>
> In order to reuse code and reduce maintenance load, this series extends
> the AS73211 driver to support the AS7331 as well.
>
> Note that the UVA and UVB light modifiers have not been merged into the
> mainline kernel yet, but they are already available in Greg's char-misc
> git tree which can be found at
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
> in the char-misc-next branch.
>
> The original device AS73211 supported by the driver could only be tested
> briefly due to the lack of hardware. Instead, the i2c-stub module has
> been used to make sure that the driver registers the iio device properly
> and the attributes exported to sysfs are correct. Some basic register
> assignments reported the expected intensity scales and in principle
> nothing else should have been affected by the modifications in the code.

I still use the original AS73211, so I can offer testing with it. I am
currently away, I'll do the tests on 2023-12-30 and report the result
then.

>
> Signed-off-by: Javier Carrasco <javier.carrasco.cruz@...il.com>
> ---
> Javier Carrasco (2):
>       dt-bindings: iio: light: as73211: add support for as7331
>       io: light: as73211: add support for as7331
>
>  .../devicetree/bindings/iio/light/ams,as73211.yaml |   7 +-
>  drivers/iio/light/Kconfig                          |   5 +-
>  drivers/iio/light/as73211.c                        | 146
> +++++++++++++++++---- 3 files changed, 127 insertions(+), 31 deletions(-)
> ---
> base-commit: e9215fcca2561b208c78359110ee4009b454f761
> change-id: 20231220-as7331-88a25ceeb66d
>
> Best regards,