[PATCH 1/3] [RFC] dt-bindings: nvmem: syscon: Add syscon backed nvmem bindings

[Rob Herring]

On Fri, 28 Oct 2022 00:50:18 +0200, Marek Vasut wrote:
> Add trivial bindings for driver which permits exposing syscon backed
> register to userspace. This is useful e.g. to expose U-Boot boot
> counter on various platforms where the boot counter is stored in
> random volatile register, like STM32MP15xx TAMP_BKPxR register.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> ---
> Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
> Cc: Rafał Miłecki <rafal at milecki.pl>
> Cc: Rob Herring <robh+dt at kernel.org>
> Cc: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
> Cc: devicetree at vger.kernel.org
> Cc: linux-stm32 at st-md-mailman.stormreply.com
> To: linux-arm-kernel at lists.infradead.org
> ---
>  .../bindings/nvmem/nvmem-syscon.yaml          | 39 +++++++++++++++++++
>  1 file changed, 39 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/nvmem-syscon.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dts:24.17-35: Warning (reg_format): /example-0/tamp at 5c00a000/nvmem-syscon:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1)
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dts:22.26-25.15: Warning (unit_address_vs_reg): /example-0/tamp at 5c00a000/nvmem-syscon: node has a reg or ranges property, but no unit name
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: Warning (pci_device_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dts:22.26-25.15: Warning (avoid_default_addr_size): /example-0/tamp at 5c00a000/nvmem-syscon: Relying on default #address-cells value
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dts:22.26-25.15: Warning (avoid_default_addr_size): /example-0/tamp at 5c00a000/nvmem-syscon: Relying on default #size-cells value
Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: Warning (unique_unit_address_if_enabled): Failed prerequisite 'avoid_default_addr_size'
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/nvmem/nvmem-syscon.example.dtb: tamp at 5c00a000: 'nvmem-syscon' does not match any of the regexes: 'pinctrl-[0-9]+'
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

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.