Re: [PATCH v3 8/9] iio: adc: ti-ads1262: support REFOUT and VBIAS regulators

[sashiko-bot@kernel.org]

Thank you for your contribution! Sashiko AI review found 2 potential issue(s) to consider:
- [High] The `refout` regulator is registered with empty operations, causing `regulator_enable()` to fail with `-EINVAL` and leaving the internal reference disabled.
- [Medium] The `vbias` regulator lacks a `.get_voltage` callback, causing it to incorrectly report its parent's full voltage instead of the mid-supply voltage.
--

--- Patch [8]: [PATCH v3 8/9] iio: adc: ti-ads1262: support REFOUT and VBIAS regulators ---
commit 8d51db315e9b593705eb805bce9b112c942e4ee3
Author: Kurt Borja <kuurtb@gmail.com>

iio: adc: ti-ads1262: support REFOUT and VBIAS regulators

Register the "refout" and "vbias" regulators to be able to use them as
common mode supplies.

> diff --git a/drivers/iio/adc/ti-ads1262.c b/drivers/iio/adc/ti-ads1262.c
> index 24a7ecb9fbd40..533574169b044 100644
> --- a/drivers/iio/adc/ti-ads1262.c
> +++ b/drivers/iio/adc/ti-ads1262.c

[ ... ]

> @@ -961,6 +962,91 @@ static irqreturn_t ads1262_irq_handler(int irq, void *dev_id)
>  	return IRQ_HANDLED;
>  }

[ ... ]

> +static const struct regulator_ops ads1262_vbias_regulator_ops = {
> +	.enable = ads1262_regulator_enable,
> +	.disable = ads1262_regulator_disable,
> +	.is_enabled = ads1262_regulator_is_enabled,
> +};

[Severity: Medium]
Since this operations structure lacks a .get_voltage callback, won't calls
to regulator_get_voltage() fall back to returning the parent's full voltage
(AVDD) instead of the expected mid-supply voltage?

> +
> +static const struct regulator_ops ads1262_refout_regulator_ops = { };

[Severity: High]
Since this operations structure is empty and lacks an .enable callback, won't
regulator_enable() fail with -EINVAL?

This also means there is no callback to configure the hardware by setting the
ADS1262_POWER_INTREF_MASK bit, leaving the internal reference disabled.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260807-ads126x-v3-0-f89925d72792@gmail.com?part=8