linux-kernel - Re: [PATCH v2 01/10] iio: light: veml6030: fix ALS sensor resolution

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Message-ID: <20240928171221.2b57638d@jic23-huawei>
Date: Sat, 28 Sep 2024 17:12:21 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Javier Carrasco <javier.carrasco.cruz@...il.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Rishi Gupta <gupt21@...il.com>,
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, Jonathan Cameron
 <Jonathan.Cameron@...wei.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2 01/10] iio: light: veml6030: fix ALS sensor
 resolution

On Mon, 23 Sep 2024 00:17:49 +0200
Javier Carrasco <javier.carrasco.cruz@...il.com> wrote:

> The driver still uses the sensor resolution provided in the datasheet
> until Rev. 1.6, 28-Apr-2022, which was updated with Rev 1.7,
> 28-Nov-2023. The original ambient light resolution has been updated from
> 0.0036 lx/ct to 0.0042 lx/ct, which is the value that can be found in
> the current device datasheet.
> 
> Update the default resolution for IT = 100 ms and GAIN = 1/8 from the
> original 4608 mlux/cnt to the current value from the "Resolution and
> maximum detection range" table (Application Note 84367, page 5), 5376
> mlux/cnt.
> 
> Cc: stable@...r.kernel.org
> Fixes: 7b779f573c48 ("iio: light: add driver for veml6030 ambient light sensor")
> Signed-off-by: Javier Carrasco <javier.carrasco.cruz@...il.com>
Applied this patch to the fixes-togreg branch of iio.git.

Thanks,

Jonathan

> ---
>  drivers/iio/light/veml6030.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/light/veml6030.c b/drivers/iio/light/veml6030.c
> index 4c436c5e0787..a3dfe56b7eec 100644
> --- a/drivers/iio/light/veml6030.c
> +++ b/drivers/iio/light/veml6030.c
> @@ -780,7 +780,7 @@ static int veml6030_hw_init(struct iio_dev *indio_dev)
>  
>  	/* Cache currently active measurement parameters */
>  	data->cur_gain = 3;
> -	data->cur_resolution = 4608;
> +	data->cur_resolution = 5376;
>  	data->cur_integration_time = 3;
>  
>  	return ret;
>