linux-kernel - Re: [PATCH v2 2/6] iio: pressure: Simplify read

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Message-ID: <ZfH4IyeFTGFBKT4J@smile.fi.intel.com>
Date: Wed, 13 Mar 2024 21:01:55 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Vasileios Amoiridis <vassilisamir@...il.com>
Cc: jic23@...nel.org, lars@...afoo.de, ang.iglesiasg@...il.com,
	mazziesaccount@...il.com, ak@...klinger.de,
	petre.rodan@...dimension.ro, linus.walleij@...aro.org,
	phil@...pberrypi.com, 579lpy@...il.com, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/6] iio: pressure: Simplify read_* functions

On Wed, Mar 13, 2024 at 06:40:03PM +0100, Vasileios Amoiridis wrote:

In the Subject: ... read_*() functions

> Add the coefficients for the IIO standard units inside the chip_info
> structure.
> 
> Remove the calculations with the coefficients for the IIO compatibility
> from inside the read_(temp/press/humid) functions and move it to the

read_{temp,press,humid}()

> read_raw function.

read_raw()

> Execute the calculations with the coefficients inside the read_raw

read_raw()

> oneshot capture functions.
> 
> Also fix raw_* and comp_* values signs.

..

>  		case IIO_TEMP:
> -			ret = data->chip_info->read_temp(data, val, val2);
> +			ret = data->chip_info->read_temp(data);
> +			*val = data->chip_info->temp_coeffs[0] * ret;
> +			*val2 = data->chip_info->temp_coeffs[1];

> +			if (!strcmp(indio_dev->name, "bmp580"))
> +				ret = IIO_VAL_FRACTIONAL_LOG2;
> +			else
> +				ret = IIO_VAL_FRACTIONAL;

I'm wondering if we may replace these strcmp():s by using enum and respective
values in chip_info.

>  			break;

-- 
With Best Regards,
Andy Shevchenko