[0/2] i2c: add I2C driver for Andes atciic100

This patch series includes DT-bindings(1/2) and I2C driver(2/2).

The atciic100 is an I2C adapter/client controller. It can act as either an
I2C adapter or an I2C client depending on the control register settings.

Ben Zong-You Xie (2):
  dt-bindings: i2c: add atciic100
  i2c: atciic100: add Andes I2C driver support

 .../bindings/i2c/andestech,i2c-atciic100.yaml |  40 ++
 MAINTAINERS                                   |   6 +
 drivers/i2c/busses/Kconfig                    |  10 +
 drivers/i2c/busses/Makefile                   |   1 +
 drivers/i2c/busses/i2c-atciic100.c            | 346 ++++++++++++++++++
 5 files changed, 403 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml
 create mode 100644 drivers/i2c/busses/i2c-atciic100.c

---
2.34.1

On Fri, 07 Feb 2025 10:19:22 +0800, Ben Zong-You Xie wrote:
> Document devicetree bindings for Andes I2C controller.
> 
> Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
> ---
>  .../bindings/i2c/andestech,i2c-atciic100.yaml | 40 +++++++++++++++++++
>  MAINTAINERS                                   |  5 +++
>  2 files changed, 45 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml: $id: Cannot determine base path from $id, relative path/filename doesn't match actual path or filename
 	 $id: http://devicetree.org/schemas/pwm/andestech,atciic100.yaml
 	file: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml

doc reference errors (make refcheckdocs):
Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/i2c/andestech,atciic100.yaml
MAINTAINERS: Documentation/devicetree/bindings/i2c/andestech,atciic100.yaml

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250207021923.2912373-2-ben717@andestech.com

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.

On Fri, Feb 07, 2025 at 10:19:22AM +0800, Ben Zong-You Xie wrote:
> Document devicetree bindings for Andes I2C controller.

Explain what is the hardware... Here is Andes I2C

> 
> Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
> ---
>  .../bindings/i2c/andestech,i2c-atciic100.yaml | 40 +++++++++++++++++++
>  MAINTAINERS                                   |  5 +++
>  2 files changed, 45 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml
> 
> diff --git a/Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml b/Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml
> new file mode 100644
> index 000000000000..cf96a9186176
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/andestech,i2c-atciic100.yaml
> @@ -0,0 +1,40 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pwm/andestech,atciic100.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Andes I2C Controller

Here as well

> +
> +maintainers:
> +  - Ben Zong-You Xie <ben717@andestech.com>
> +
> +allOf:
> +  - $ref: /schemas/i2c/i2c-controller.yaml#
> +
> +properties:
> +  compatible:
> +    const: andestech,atciic100

But here atciic100. This is all confusing. What is the SoC? What is the
name of this device?


Best regards,
Krzysztof