[PATCH v3 2/4] iio: adc: mt6323-auxadc: add mt6323 PMIC AUXADC driver

[Andy Shevchenko]

On Tue, Jun 16, 2026 at 05:15:40PM +0300, Roman Vivchar via B4 Relay wrote:

> The mt6323 AUXADC is a 15-bit ADC used for system monitoring. This driver
> provides support for reading various channels including battery and
> charger voltages, battery and chip temperature, current sensing and
> accessory detection.
> 
> Add a driver for the AUXADC found in the MediaTek mt6323 PMIC.

...

> +static int mt6323_auxadc_prepare_channel(struct mt6323_auxadc *auxadc)
> +{
> +	struct regmap *map = auxadc->regmap;
> +	u32 val;
> +	int ret;
> +
> +	ret = regmap_read(map, MT6323_AUXADC_CON19, &val);
> +	if (ret)
> +		return ret;
> +
> +	/* The ADC is idle. */
> +	if (!(val & AUXADC_CON19_DECI_GDLY_MASK))
> +		return 0;

> +	ret = regmap_read_poll_timeout(map, MT6323_AUXADC_ADC19, val,
> +				       !(val & AUXADC_ADC19_BUSY_MASK),
> +				       10, 500);

Still can be amended.

	ret = regmap_read_poll_timeout(map, MT6323_AUXADC_ADC19,
				       val, !(val & AUXADC_ADC19_BUSY_MASK),
				       10, 500);

(no need to resend just for this).

> +	if (ret)
> +		return ret;
> +
> +	return regmap_clear_bits(map, MT6323_AUXADC_CON19,
> +				 AUXADC_CON19_DECI_GDLY_MASK);
> +}

-- 
With Best Regards,
Andy Shevchenko