linux-kernel - Re: [PATCH v3 3/6] iio: pressure: add SCALE and RAW values for channels

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Message-ID: <ZfH4bET-HX0e3PO_@smile.fi.intel.com>
Date: Wed, 13 Mar 2024 21:03:08 +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 v3 3/6] iio: pressure: add SCALE and RAW values for
 channels

On Wed, Mar 13, 2024 at 06:40:04PM +0100, Vasileios Amoiridis wrote:
> Add extra IIO_CHAN_INFO_SCALE and IIO_CHAN_INFO_RAW in order to be
> able to calculate the processed value with standard userspace IIO
> tools. Can be used for triggered buffers as well.

..

> +	case IIO_CHAN_INFO_RAW:
> +		switch (chan->type) {
> +		case IIO_HUMIDITYRELATIVE:
> +			*val = data->chip_info->read_humid(data);
> +			ret = IIO_VAL_INT;
> +			break;
> +		case IIO_PRESSURE:
> +			*val = data->chip_info->read_press(data);
> +			ret = IIO_VAL_INT;
> +			break;
> +		case IIO_TEMP:
> +			*val = data->chip_info->read_temp(data);
> +			ret = IIO_VAL_INT;
> +			break;
> +		default:
> +			ret = -EINVAL;
> +			break;

Is it mutex that prevents us from returning here?
If so, perhaps switching to use cleanup.h first?

> +		}
> +		break;


-- 
With Best Regards,
Andy Shevchenko