Re: [PATCH 1/2] dt-bindings: iio: dac: add support for Microchip MCP48FEB02 to MCP47FEB02

From: Rob Herring (Arm)

Date: Fri Apr 03 2026 - 08:25:26 EST



On Fri, 03 Apr 2026 13:50:13 +0300, Ariana Lazar wrote:
> This is the device tree schema for iio driver for Microchip
> MCP48FxBy1/2/4/8 series of buffered voltage output Digital-to-Analog
> Converters with nonvolatile or volatile memory on top of MCP47FEB02.
> The families support up to 8 output channels and have 8-bit, 10-bit or
> 12-bit resolution.
>
> The I2C (MCP47F(E/V)BXX) and SPI (MCP48F(E/V)BXX) DAC families were merged
> into the same dt-binding file.
>
> Fixes: 4ba12d304175 ("dt-bindings: iio: dac: adding support for Microchip MCP47FEB02")
> Signed-off-by: Ariana Lazar <ariana.lazar@xxxxxxxxxxxxx>
> Link: https://lore.kernel.org/all/20260216-shiny-itunes-00a31d1f4db7@spud/
> ---
> .../bindings/iio/dac/microchip,mcp47feb02.yaml | 291 +++++++++++++++------
> MAINTAINERS | 1 -
> 2 files changed, 217 insertions(+), 75 deletions(-)
>

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:
./Documentation/devicetree/bindings/iio/dac/microchip,mcp47feb02.yaml:245:22: [error] string value is redundantly quoted with any quotes (quoted-strings)

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/iio/dac/microchip,mcp47feb02.example.dts:22.20-39.13: Warning (i2c_bus_reg): /example-0/i2c/dac@60: I2C bus unit address format error, expected "0"

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260403-mcp47feb02-fix2-v1-1-da60c773550e@xxxxxxxxxxxxx

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.