Re: [PATCH v9 1/3] iio: adc: ti-ads1100: Fix incorrect reading when datarate changed in single mode

[Andy Shevchenko]

On Tue, Aug 04, 2026 at 09:28:38PM +0200, Jakub Szczudlo wrote:
> When device is suspended and it is in single mode then changing
> datarate doesn't make it actually wait for new measurement, so to
> be sure that read after change is correct, functions that changes
> datarate and gain will wait for a new data.

A couple of minor issues (no need to resend just for these).

...

> +static int ads1100_start_single_conversion(struct ads1100_data *data)
> +{
> +	u8 config = data->config | ADS1100_CFG_SC;
> +	int ret;
> +
> +	ret = i2c_master_send(data->client, &config, sizeof(config));
> +	if (ret < 0) {
> +		dev_err(&data->client->dev, "I2C write fail: %d\n", ret);
> +		return ret;
> +	}

> +   /* Need to wait because of change from continuous to single mode */

Broken indentation.

> +	ret = ads1100_wait_single_conversion(data);
> +	if (ret)
> +		return ret;
> +
> +	config |= ADS1100_CFG_ST_BSY;
> +
> +	ret = i2c_master_send(data->client, &config, sizeof(config));
> +	if (ret < 0) {
> +		dev_err(&data->client->dev, "I2C write fail: %d\n", ret);
> +		return ret;
> +	}
> +
> +	/* No need to cache it, it's status bit */
> +	data->config = config & ~ADS1100_CFG_ST_BSY;
> +
> +	return 0;
> +}
> +
> +static int ads1100_poll_data_ready(struct ads1100_data *data)
> +{
> +	int ret;
> +
> +	ret = ads1100_start_single_conversion(data);
> +	if (ret)
> +		return ret;
> +
> +	ret = ads1100_wait_single_conversion(data);
> +	if (ret)
> +		return ret;
> +
> +	return ads1100_set_config_bits(data, ADS1100_CFG_SC,
> +			      ADS1100_CONTINUOUS);

It's one line (81 characters which is acceptable).

> +}

-- 
With Best Regards,
Andy Shevchenko