[PATCH 0/3] Add i.MX94 OCOTP support

[Rob Herring (Arm)]

On Wed, 24 Sep 2025 18:06:22 +0800, Alice Guo (OSS) wrote:
> This patch series adds support for the OCOTP controller on the i.MX94
> SoC. The OCOTP controller provides access to eFuse regions.
> 
> Tested on an i.MX943 EVK board with successful NVMEM read access via
> sysfs.
> 
> Signed-off-by: Alice Guo <alice.guo at nxp.com>
> ---
> Alice Guo (3):
>       dt-bindings: nvmem: imx-ocotp: Add binding for i.MX94
>       nvmem: imx-ocotp-ele: Add support for i.MX94 OCOTP
>       arm64: dts: imx94: Add OCOTP node
> 
>  .../devicetree/bindings/nvmem/imx-ocotp.yaml         |  4 +++-
>  arch/arm64/boot/dts/freescale/imx94.dtsi             |  7 +++++++
>  drivers/nvmem/imx-ocotp-ele.c                        | 20 ++++++++++++++++++++
>  3 files changed, 30 insertions(+), 1 deletion(-)
> ---
> base-commit: cec1e6e5d1ab33403b809f79cd20d6aff124ccfe
> change-id: 20250924-imx943-b27ad75d14fa
> 
> Best regards,
> --
> Alice Guo <alice.guo at oss.nxp.com>
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: using specified base-commit cec1e6e5d1ab33403b809f79cd20d6aff124ccfe

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/freescale/' for 20250924-imx943-v1-0-0d32d7852ecb at oss.nxp.com:

arch/arm64/boot/dts/freescale/imx943-evk.dtb: efuse at 47510000 (fsl,imx94-ocotp): compatible: 'oneOf' conditional failed, one must be fixed:
	['fsl,imx94-ocotp'] is too short
	'fsl,imx94-ocotp' is not one of ['fsl,imx8mn-ocotp', 'fsl,imx8mp-ocotp']
	from schema $id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#
arch/arm64/boot/dts/freescale/imx943-evk.dtb: efuse at 47510000 (fsl,imx94-ocotp): Unevaluated properties are not allowed ('compatible' was unexpected)
	from schema $id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#