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

[Kurt Borja]

On Sat Aug 8, 2026 at 1:40 PM -05, David Lechner wrote:
> On 8/7/26 10:58 PM, Kurt Borja wrote:
>> Register the "refout" and "vbias" regulators to be able to use them as
>> common mode supplies.
>> 
>> Signed-off-by: Kurt Borja <kuurtb@xxxxxxxxx>
>> ---
>>  drivers/iio/adc/Kconfig      |  1 +
>>  drivers/iio/adc/ti-ads1262.c | 90 ++++++++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 91 insertions(+)

[...]

>> diff --git a/drivers/iio/adc/ti-ads1262.c b/drivers/iio/adc/ti-ads1262.c
>> index 24a7ecb9fbd4..533574169b04 100644
>> --- a/drivers/iio/adc/ti-ads1262.c
>> +++ b/drivers/iio/adc/ti-ads1262.c

[...]

>> +static const struct regulator_ops ads1262_vbias_regulator_ops = {
>> +	.enable = ads1262_regulator_enable,
>> +	.disable = ads1262_regulator_disable,
>> +	.is_enabled = ads1262_regulator_is_enabled,
>
> This should also have a get_voltage() op that returns
> (VAVDD + VAVSS) / 2. Otherwise it won't be usable as a
> common mode voltage.

I'll add this.

>
>> +};
>> +
>> +static const struct regulator_ops ads1262_refout_regulator_ops = { };
>> +
>> +static const struct regulator_desc ads1262_vbias_regulator_desc = {
>> +	.name = "vbias",
>> +	.of_match = "vbias",
>> +	.regulators_node = "regulators",
>> +	.supply_name = "avdd",
>
> What does supply_name do? Make "avdd-supply" the parent supply?

I haven't looked at the code, but it seems like it (sysfs verfies it).
I'll check how is supply_name handled before the next version.

-- 
Thanks,
 ~ Kurt