[PATCH] dt-bindings: mfd: Move embedded controllers to own directory

[PATCH] dt-bindings: mfd: Move embedded controllers to own directory

[Krzysztof Kozlowski]

Move ChromeOS Embedded Controller, Gateworks System Controller and
Kontron sl28cpld Board Management Controller to new subdirectory
"embedded-controller" matching their purpose.  MFD is coming from Linux
and does not really fit the actual purpose of this hardware.

Rename Gateworks GSC filename to match compatible, as preferred for
bindings.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

Cc: Mathew McBride <matt@traverse.com.au>

Lee,
Can you take it via MFD?
---
 .../bindings/{mfd => embedded-controller}/google,cros-ec.yaml | 2 +-
 .../gateworks-gsc.yaml => embedded-controller/gw,gsc.yaml}    | 2 +-
 .../{mfd => embedded-controller}/kontron,sl28cpld.yaml        | 2 +-
 MAINTAINERS                                                   | 4 ++--
 4 files changed, 5 insertions(+), 5 deletions(-)
 rename Documentation/devicetree/bindings/{mfd => embedded-controller}/google,cros-ec.yaml (99%)
 rename Documentation/devicetree/bindings/{mfd/gateworks-gsc.yaml => embedded-controller/gw,gsc.yaml} (98%)
 rename Documentation/devicetree/bindings/{mfd => embedded-controller}/kontron,sl28cpld.yaml (97%)

diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/embedded-controller/google,cros-ec.yaml
similarity index 99%
rename from Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
rename to Documentation/devicetree/bindings/embedded-controller/google,cros-ec.yaml
index 50f457090066..3ab5737c9a8f 100644
--- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
+++ b/Documentation/devicetree/bindings/embedded-controller/google,cros-ec.yaml
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/mfd/google,cros-ec.yaml#
+$id: http://devicetree.org/schemas/embedded-controller/google,cros-ec.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: ChromeOS Embedded Controller
diff --git a/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml b/Documentation/devicetree/bindings/embedded-controller/gw,gsc.yaml
similarity index 98%
rename from Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
rename to Documentation/devicetree/bindings/embedded-controller/gw,gsc.yaml
index dc379f3ebf24..82d4b2dadbae 100644
--- a/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
+++ b/Documentation/devicetree/bindings/embedded-controller/gw,gsc.yaml
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/mfd/gateworks-gsc.yaml#
+$id: http://devicetree.org/schemas/embedded-controller/gw,gsc.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Gateworks System Controller
diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/embedded-controller/kontron,sl28cpld.yaml
similarity index 97%
rename from Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
rename to Documentation/devicetree/bindings/embedded-controller/kontron,sl28cpld.yaml
index 37207a97e06c..0b752f3baaa9 100644
--- a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
+++ b/Documentation/devicetree/bindings/embedded-controller/kontron,sl28cpld.yaml
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/mfd/kontron,sl28cpld.yaml#
+$id: http://devicetree.org/schemas/embedded-controller/kontron,sl28cpld.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Kontron's sl28cpld board management controller
diff --git a/MAINTAINERS b/MAINTAINERS
index 7969d09dff17..f3e4c1aa656e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10129,7 +10129,7 @@ F:	drivers/media/i2c/gc2145.c
 GATEWORKS SYSTEM CONTROLLER (GSC) DRIVER
 M:	Tim Harvey <tharvey@gateworks.com>
 S:	Maintained
-F:	Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
+F:	Documentation/devicetree/bindings/embedded-controller/gw,gsc.yaml
 F:	Documentation/hwmon/gsc-hwmon.rst
 F:	drivers/hwmon/gsc-hwmon.c
 F:	drivers/mfd/gateworks-gsc.c
@@ -23177,10 +23177,10 @@ F:	drivers/usb/misc/sisusbvga/
 SL28 CPLD MFD DRIVER
 M:	Michael Walle <mwalle@kernel.org>
 S:	Maintained
+F:	Documentation/devicetree/bindings/embedded-controller/kontron,sl28cpld.yaml
 F:	Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml
 F:	Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml
 F:	Documentation/devicetree/bindings/interrupt-controller/kontron,sl28cpld-intc.yaml
-F:	Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
 F:	Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml
 F:	Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml
 F:	drivers/gpio/gpio-sl28cpld.c
-- 
2.48.1

Re: [PATCH] dt-bindings: mfd: Move embedded controllers to own directory

[Michael Walle]

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On Thu Aug 21, 2025 at 8:28 AM CEST, Krzysztof Kozlowski wrote:
> Move ChromeOS Embedded Controller, Gateworks System Controller and
> Kontron sl28cpld Board Management Controller to new subdirectory
> "embedded-controller" matching their purpose.  MFD is coming from Linux
> and does not really fit the actual purpose of this hardware.
>
> Rename Gateworks GSC filename to match compatible, as preferred for
> bindings.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Not sure if I can even ack that, if not, disregard it:

Acked-by: Michael Walle <mwalle@kernel.org> # for sl28cpld

> ---
>
> Cc: Mathew McBride <matt@traverse.com.au>
>
> Lee,
> Can you take it via MFD?

That would be good, as I also have a new patch series (planned for
this week) for a sl28cpld compatible "sa67mcu" embedded controller,
which touches that file. As it also contains MFD patches, I'd expect
that the DT changes of that series also go through the MFD tree then.

-michael

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Re: [PATCH] dt-bindings: mfd: Move embedded controllers to own directory

[Krzysztof Kozlowski]

On 21/08/2025 08:28, Krzysztof Kozlowski wrote:
> Move ChromeOS Embedded Controller, Gateworks System Controller and
> Kontron sl28cpld Board Management Controller to new subdirectory
> "embedded-controller" matching their purpose.  MFD is coming from Linux
> and does not really fit the actual purpose of this hardware.
> 
> Rename Gateworks GSC filename to match compatible, as preferred for
> bindings.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> ---
> 
> Cc: Mathew McBride <matt@traverse.com.au>
> 
> Lee,
> Can you take it via MFD?
> ---
>  .../bindings/{mfd => embedded-controller}/google,cros-ec.yaml | 2 +-
>  .../gateworks-gsc.yaml => embedded-controller/gw,gsc.yaml}    | 2 +-
>  .../{mfd => embedded-controller}/kontron,sl28cpld.yaml        | 2 +-

I forgot to update references in other files (except maintainers). This
needs v2.

Best regards,
Krzysztof

Re: [PATCH] dt-bindings: mfd: Move embedded controllers to own directory

[Rob Herring (Arm)]

On Thu, 21 Aug 2025 08:28:41 +0200, Krzysztof Kozlowski wrote:
> Move ChromeOS Embedded Controller, Gateworks System Controller and
> Kontron sl28cpld Board Management Controller to new subdirectory
> "embedded-controller" matching their purpose.  MFD is coming from Linux
> and does not really fit the actual purpose of this hardware.
> 
> Rename Gateworks GSC filename to match compatible, as preferred for
> bindings.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> ---
> 
> Cc: Mathew McBride <matt@traverse.com.au>
> 
> Lee,
> Can you take it via MFD?
> ---
>  .../bindings/{mfd => embedded-controller}/google,cros-ec.yaml | 2 +-
>  .../gateworks-gsc.yaml => embedded-controller/gw,gsc.yaml}    | 2 +-
>  .../{mfd => embedded-controller}/kontron,sl28cpld.yaml        | 2 +-
>  MAINTAINERS                                                   | 4 ++--
>  4 files changed, 5 insertions(+), 5 deletions(-)
>  rename Documentation/devicetree/bindings/{mfd => embedded-controller}/google,cros-ec.yaml (99%)
>  rename Documentation/devicetree/bindings/{mfd/gateworks-gsc.yaml => embedded-controller/gw,gsc.yaml} (98%)
>  rename Documentation/devicetree/bindings/{mfd => embedded-controller}/kontron,sl28cpld.yaml (97%)
> 

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/remoteproc/mtk,scp.yaml:
	Error in referenced schema matching $id: http://devicetree.org/schemas/mfd/google,cros-ec.yaml
	Tried these paths (check schema $id if path is wrong):
	/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
	/usr/local/lib/python3.13/dist-packages/dtschema/schemas/mfd/google,cros-ec.yaml

/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb: scp@10500000 (mediatek,mt8192-scp): cros-ec-rpmsg: {'compatible': ['google,cros-ec-rpmsg'], 'mediatek,rpmsg-name': ['cros-ec-rpmsg']} should not be valid under {'description': "Can't find referenced schema: http://devicetree.org/schemas/mfd/google,cros-ec.yaml#"}
	from schema $id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb: scp@10500000 (mediatek,mt8192-scp): cros-ec-rpmsg: Unevaluated properties are not allowed ('compatible', 'mediatek,rpmsg-name' were unexpected)
	from schema $id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb: scp@10500000 (mediatek,mt8195-scp-dual): scp@0:cros-ec-rpmsg: {'compatible': ['google,cros-ec-rpmsg'], 'mediatek,rpmsg-name': ['cros-ec-rpmsg']} should not be valid under {'description': "Can't find referenced schema: http://devicetree.org/schemas/mfd/google,cros-ec.yaml#"}
	from schema $id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb: scp@10500000 (mediatek,mt8195-scp-dual): scp@0:cros-ec-rpmsg: Unevaluated properties are not allowed ('compatible', 'mediatek,rpmsg-name' were unexpected)
	from schema $id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb: scp@10500000 (mediatek,mt8195-scp-dual): scp@a0000:cros-ec-rpmsg: {'compatible': ['google,cros-ec-rpmsg'], 'mediatek,rpmsg-name': ['cros-ec-rpmsg']} should not be valid under {'description': "Can't find referenced schema: http://devicetree.org/schemas/mfd/google,cros-ec.yaml#"}
	from schema $id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/remoteproc/mtk,scp.example.dtb: scp@10500000 (mediatek,mt8195-scp-dual): scp@a0000:cros-ec-rpmsg: Unevaluated properties are not allowed ('compatible', 'mediatek,rpmsg-name' were unexpected)
	from schema $id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#

doc reference errors (make refcheckdocs):
Warning: Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml references a file that doesn't exist: Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
Warning: Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml references a file that doesn't exist: Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml: Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml: Documentation/devicetree/bindings/mfd/google,cros-ec.yaml

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250821062840.9383-2-krzysztof.kozlowski@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.