Add Device Tree support for configuring the LED pulse-width of the MAX30100
sensor, and updates the driver to read and apply this property. 

Testing:
- Verify DT property read successfully in probe().
- Verify default fallback to 1600 us when DT property is omitted.
- Confirm SPO2_CONFIG register programmed correctly using regmap_read().
- Validate different DT pulse-width values (200, 400, 800, 1600 us)
  are applied correctly.
- Validate probe() failure for invalid LED pulse-width
- Tested-on: Raspberry Pi 3B + MAX30100 breakout board

Changelog:
Changes from v2:
- Fix DT binding schema errors
- Add default value
- Remove changelog from commit message
- Add missing header file

Shrikant Raskar (2):
  dt-bindings: iio: health: max30100: Add LED pulse-width property
  iio: health: max30100: Make LED pulse-width configurable via DT

 .../bindings/iio/health/maxim,max30100.yaml   |  8 ++++
 drivers/iio/health/max30100.c                 | 38 +++++++++++++++++--
 2 files changed, 43 insertions(+), 3 deletions(-)


base-commit: 8bd9238e511d02831022ff0270865c54ccc482d6
-- 
2.43.0

On Sun, 12 Oct 2025 23:00:33 +0530
Shrikant Raskar <raskar.shree97@gmail.com> wrote:

> Add Device Tree support for configuring the LED pulse-width of the MAX30100
> sensor, and updates the driver to read and apply this property. 
> 
> Testing:
> - Verify DT property read successfully in probe().
> - Verify default fallback to 1600 us when DT property is omitted.
> - Confirm SPO2_CONFIG register programmed correctly using regmap_read().
> - Validate different DT pulse-width values (200, 400, 800, 1600 us)
>   are applied correctly.
> - Validate probe() failure for invalid LED pulse-width
> - Tested-on: Raspberry Pi 3B + MAX30100 breakout board
> 
> Changelog:
> Changes from v2:
> - Fix DT binding schema errors
> - Add default value
> - Remove changelog from commit message
> - Add missing header file
> 
> Shrikant Raskar (2):
>   dt-bindings: iio: health: max30100: Add LED pulse-width property
>   iio: health: max30100: Make LED pulse-width configurable via DT
> 
>  .../bindings/iio/health/maxim,max30100.yaml   |  8 ++++
>  drivers/iio/health/max30100.c                 | 38 +++++++++++++++++--
>  2 files changed, 43 insertions(+), 3 deletions(-)
> 
> 
> base-commit: 8bd9238e511d02831022ff0270865c54ccc482d6

Applied to the togreg branch of iio.git and pushed out as testing for now

Thanks,

Jonathan

On Sat, Oct 18, 2025 at 8:34 PM Jonathan Cameron <jic23@kernel.org> wrote:
>
> On Sun, 12 Oct 2025 23:00:33 +0530
> Shrikant Raskar <raskar.shree97@gmail.com> wrote:
>
> > Add Device Tree support for configuring the LED pulse-width of the MAX30100
> > sensor, and updates the driver to read and apply this property.
> >
> > Testing:
> > - Verify DT property read successfully in probe().
> > - Verify default fallback to 1600 us when DT property is omitted.
> > - Confirm SPO2_CONFIG register programmed correctly using regmap_read().
> > - Validate different DT pulse-width values (200, 400, 800, 1600 us)
> >   are applied correctly.
> > - Validate probe() failure for invalid LED pulse-width
> > - Tested-on: Raspberry Pi 3B + MAX30100 breakout board
> >
> > Changelog:
> > Changes from v2:
> > - Fix DT binding schema errors
> > - Add default value
> > - Remove changelog from commit message
> > - Add missing header file
> >
> > Shrikant Raskar (2):
> >   dt-bindings: iio: health: max30100: Add LED pulse-width property
> >   iio: health: max30100: Make LED pulse-width configurable via DT
> >
> >  .../bindings/iio/health/maxim,max30100.yaml   |  8 ++++
> >  drivers/iio/health/max30100.c                 | 38 +++++++++++++++++--
> >  2 files changed, 43 insertions(+), 3 deletions(-)
> >
> >
> > base-commit: 8bd9238e511d02831022ff0270865c54ccc482d6
>
> Applied to the togreg branch of iio.git and pushed out as testing for now
Thanks for the update. I really appreciate your time and support!

Regards,
Shrikant