The Maxim MAX77759 is a companion PMIC for USB Type-C applications and
includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C
Port Controller (TCPC), NVMEM, and a GPIO expander.

This describes its storage module (NVMEM).

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
---
v2:
* drop example as the MFD binding has a complete one (Rob)

Note: MAINTAINERS doesn't need updating, the binding update for the
first leaf device (gpio) adds a wildcard matching all max77759 bindings
---
 .../bindings/nvmem/maxim,max77759-nvmem.yaml       | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml b/Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..1e3bd4433007341a11040f513bf444866b9e38a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/maxim,max77759-nvmem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX77759 Non Volatile Memory
+
+maintainers:
+  - André Draszik <andre.draszik@linaro.org>
+
+description: |
+  This module is part of the MAX77759 PMIC. For additional information, see
+  Documentation/devicetree/bindings/mfd/maxim,max77759.yaml.
+
+  The MAX77759 is a PMIC integrating, amongst others, Non Volatile Memory
+  (NVMEM) with 30 bytes of storage which can be used by software to store
+  information or communicate with a boot loader.
+
+properties:
+  compatible:
+    const: maxim,max77759-nvmem
+
+  wp-gpios: false
+
+required:
+  - compatible
+
+allOf:
+  - $ref: nvmem.yaml#
+
+unevaluatedProperties: false

-- 
2.49.0.395.g12beb8f557-goog

On Tue, 25 Mar 2025 08:27:03 +0000, André Draszik wrote:
> The Maxim MAX77759 is a companion PMIC for USB Type-C applications and
> includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C
> Port Controller (TCPC), NVMEM, and a GPIO expander.
> 
> This describes its storage module (NVMEM).
> 
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Signed-off-by: André Draszik <andre.draszik@linaro.org>
> ---
> v2:
> * drop example as the MFD binding has a complete one (Rob)
> 
> Note: MAINTAINERS doesn't need updating, the binding update for the
> first leaf device (gpio) adds a wildcard matching all max77759 bindings
> ---
>  .../bindings/nvmem/maxim,max77759-nvmem.yaml       | 32 ++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:


doc reference errors (make refcheckdocs):
Warning: Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml references a file that doesn't exist: Documentation/devicetree/bindings/mfd/maxim,max77759.yaml
Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml: Documentation/devicetree/bindings/mfd/maxim,max77759.yaml

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250325-max77759-mfd-v6-2-c0870ca662ba@linaro.org

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 Tue, Mar 25, 2025 at 07:55:09AM -0500, Rob Herring (Arm) wrote:
> 
> On Tue, 25 Mar 2025 08:27:03 +0000, André Draszik wrote:
> > The Maxim MAX77759 is a companion PMIC for USB Type-C applications and
> > includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C
> > Port Controller (TCPC), NVMEM, and a GPIO expander.
> > 
> > This describes its storage module (NVMEM).
> > 
> > Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> > Signed-off-by: André Draszik <andre.draszik@linaro.org>
> > ---
> > v2:
> > * drop example as the MFD binding has a complete one (Rob)
> > 
> > Note: MAINTAINERS doesn't need updating, the binding update for the
> > first leaf device (gpio) adds a wildcard matching all max77759 bindings
> > ---
> >  .../bindings/nvmem/maxim,max77759-nvmem.yaml       | 32 ++++++++++++++++++++++
> >  1 file changed, 32 insertions(+)
> > 
> 
> My bot found errors running 'make dt_binding_check' on your patch:
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> 
> 
> doc reference errors (make refcheckdocs):
> Warning: Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml references a file that doesn't exist: Documentation/devicetree/bindings/mfd/maxim,max77759.yaml
> Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml: Documentation/devicetree/bindings/mfd/maxim,max77759.yaml

This can be disregarded.