linux-kernel - Re: [PATCH v1 17/17] iio: chemical: bme680: Refactorize reading functions

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Date: Sun, 2 Jun 2024 14:04:05 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Vasileios Amoiridis <vassilisamir@...il.com>
Cc: lars@...afoo.de, himanshujha199640@...il.com, linux-iio@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 17/17] iio: chemical: bme680: Refactorize reading
 functions

On Mon, 27 May 2024 20:38:05 +0200
Vasileios Amoiridis <vassilisamir@...il.com> wrote:

> The reading of the pressure and humidity value, requires an update
> of the t_fine variable which happens by reading the temperature
> value.
> 
> So the bme680_read_{press/humid}() functions of the above sensors
> are internally calling the equivalent bme680_read_temp() function
> in order to update the t_fine value. By just looking at the code
> this relation is a bit hidden and is not easy to understand why
> those channels are not independent.
> 
> This commit tries to clear these thing a bit by splitting the
> bme680_{read/compensate}_{temp/press/humid}() to the following:
> 
> i. bme680_read_{temp/press/humid}_adc(): read the raw value from
> the sensor.
> 
> ii. bme680_calc_t_fine(): calculate the t_fine variable.
> 
> iii. bme680_get_t_fine(): get the t_fine variable.
> 
> iv. bme680_compensate_{temp/press/humid}(): compensate the adc
> values and return the calculated value.
> 
> v. bme680_read_{temp/press/humid}(): combine calls of the
> aforementioned functions to return the requested value.
> 
> Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
This and patches I didn't comment on (1-3, 6-9, 12, 15-17)
all look good to me. 

Thanks,

Jonathan