Re: [PATCH v3 0/3] iio: dac: ltc2632: add support for LTC2654 DAC family

[Jonathan Cameron <jic23@kernel.org>]

On Fri, 20 Mar 2026 16:09:45 +0100
David Marinović <david.marinovic@pupin.rs> wrote:

> From: David Marinovic <david.marinovic@pupin.rs>
> 
> Greetings!
> 
> This is v3 of the LTC2654 DAC support patch series.
> 
> The LTC2654 is a quad-channel, 16-/12-bit DAC with internal
> reference voltage and SPI interface, sharing the same 24-bit
> SPI protocol as the LTC2632/2634/2636 family.
> 
> The LTC2654L-16 variant was tested on a Phytec phyCORE-STM32MP1
> board with the DAC connected via SPI1. The driver probes successfully
> and all 4 channels are accessible via IIO sysfs.
> 
> Changes in v3:
> - Patch 1 unchanged
> - DT bindings use fallback compatibles for LTC2654-L12 and
>   LTC2654-H12, which are register-compatible with LTC2634-L12
>   and LTC2634-H12
> - LTC2654-L16 and LTC2654-H16 keep separate compatible strings
>   as no existing compatible supports 16-bit resolution
> - 12-bit variants reuse existing LTC2634 chip_info structures,
>   so only two new chip_info structures are added for 16-bit variants
> 
Applied to the testing branch of iio.git (which will become togreg once
the bots let me know if they found any problems).

I made a few minor tweaks as called out in specific patches.

Thanks,

Jonathan

> 
> David Marinovic (3):
>   iio: dac: ltc2632: drop enum and use individual chip_info objects
>   dt-bindings: iio: dac: ltc2632: add LTC2654 compatible strings
>   iio: dac: ltc2632: add support for LTC2654 DAC family
> 
>  .../bindings/iio/dac/lltc,ltc2632.yaml        |  12 +-
>  drivers/iio/dac/ltc2632.c                     | 367 +++++++++---------
>  2 files changed, 188 insertions(+), 191 deletions(-)
>