Re: [PATCH 0/2] iio: adc: ti-ads112c14: add burnout current support

From: Jonathan Cameron

Date: Sun Jul 26 2026 - 22:08:37 EST


On Fri, 24 Jul 2026 15:49:16 -0500
"David Lechner (TI)" <dlechner@xxxxxxxxxxxx> wrote:

> The TI ADS112C14 ADC has a feature to enable a "burnout" current when
> taking a measurement. This can be used to detect open/short circuit
> conditions of a connected sensor. However, enabling this affects the
> accuracy of the reading. So we add a custom "burnoutraw" attribute for
> this. This works like the standard raw attribute to do a direct read
> but does so with the burnout current enabled.
>
> If this sounds familiar, it is because we discussed this on a similar
> chip recently [1]. And this is why I put the ABI docs in a common ADC
> file rather than one specific to this chip.
>
> [1]: https://lore.kernel.org/linux-iio/20260622110223.7e854dde@jic23-huawei/
>
> Signed-off-by: David Lechner (TI) <dlechner@xxxxxxxxxxxx>

Seems fine to me, but given it is new ABI, I'd like some more eyes on the documentation
patch in particular.

Thanks

Jonathan

> ---
> David Lechner (TI) (2):
> iio: adc: ti-ads112c14: add burnout current support
> iio: ABI: add sysfs attribute for _burnoutraw
>
> Documentation/ABI/testing/sysfs-bus-iio-adc | 9 ++
> drivers/iio/adc/ti-ads112c14.c | 126 ++++++++++++++++++++++++++--
> 2 files changed, 126 insertions(+), 9 deletions(-)
> ---
> base-commit: 0b5e142ced4bcf20532da051934bd694d1bbd470
> change-id: 20260724-iio-adc-ti-ads112c14-burnout-184304669165
> prerequisite-change-id: 20260714-iio-adc-ti-ads112c14-buffered-read-41e5d1ca0dc3:v2
> prerequisite-patch-id: 8723aa599dcf5b836fb81cf1efb6c9096bf60b7a
> prerequisite-patch-id: 12754335ccf210bcdeaa8a5d60b2280618d50993
> prerequisite-change-id: 20260724-iio-adc-ti-ads112c14-continuous-mode-dd1580754609:v1
> prerequisite-patch-id: 8723aa599dcf5b836fb81cf1efb6c9096bf60b7a
> prerequisite-patch-id: 12754335ccf210bcdeaa8a5d60b2280618d50993
> prerequisite-patch-id: ed5d4c1628ef60ed542339fe5fb490383ee8074f
> prerequisite-patch-id: b92f5609fcf39e958e78b4dd74c3d323ebb6a161
>
> Best regards,
> --
> David Lechner (TI) <dlechner@xxxxxxxxxxxx>
>