2020-09-08 20:18:45

by Andreas Kemnade

[permalink] [raw]
Subject: [PATCH] dt-bindings: mfd: Convert rn5t618 to json-schema

Convert the RN5T618 binding to DT schema format. Also
clearly state which regulators are available.

Signed-off-by: Andreas Kemnade <[email protected]>
---
I have noted myself here as maintainer because I wrote most of the
code of the several subdevices, although not of the .txt-binding.
Due to its .txt-format history BSD license was not added.
I happily ignored the "does MAINTAINERS need updating" thing
from checkpatch.pl, I do not know whether that PMIC should
have a separate entry there.

.../bindings/mfd/ricoh,rn5t618.yaml | 113 ++++++++++++++++++
.../devicetree/bindings/mfd/rn5t618.txt | 52 --------
2 files changed, 113 insertions(+), 52 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
delete mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt

diff --git a/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
new file mode 100644
index 000000000000..9596dde7a69a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
@@ -0,0 +1,113 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/ricoh,rn5t618.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ricoh RN5T567/RN5T618/RC5T619 PMIC
+
+maintainers:
+ - Andreas Kemnade <[email protected]>
+
+description: |
+ Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
+ integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
+ GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
+ The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
+ fuel gauge, and an ADC.
+ The RC5T619 additionnally includes USB charger detection and an RTC.
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ricoh,rn5t567
+ then:
+ properties:
+ regulators:
+ patternProperties:
+ "^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$":
+ $ref: ../regulator/regulator.yaml
+ additionalProperties: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ricoh,rn5t618
+ then:
+ properties:
+ regulators:
+ patternProperties:
+ "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$":
+ $ref: ../regulator/regulator.yaml
+ additionalProperties: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ricoh,rc5t619
+ then:
+ properties:
+ regulators:
+ patternProperties:
+ "^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
+ $ref: ../regulator/regulator.yaml
+ additionalProperties: false
+
+properties:
+ compatible:
+ enum:
+ - ricoh,rn5t567
+ - ricoh,rn5t618
+ - ricoh,rc5t619
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description: |
+ See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+ system-power-controller:
+ type: boolean
+ description: |
+ See Documentation/devicetree/bindings/power/power-controller.txt
+
+ regulators:
+ type: object
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@32 {
+ compatible = "ricoh,rn5t618";
+ reg = <0x32>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+ system-power-controller;
+
+ regulators {
+ DCDC1 {
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ };
+
+ DCDC2 {
+ regulator-min-microvolt = <1175000>;
+ regulator-max-microvolt = <1175000>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt
deleted file mode 100644
index 16778ea00dbc..000000000000
--- a/Documentation/devicetree/bindings/mfd/rn5t618.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* Ricoh RN5T567/RN5T618 PMIC
-
-Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
-integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
-GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
-The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
-fuel gauge, and an ADC.
-The RC5T619 additionnally includes USB charger detection and an RTC.
-
-Required properties:
- - compatible: must be one of
- "ricoh,rn5t567"
- "ricoh,rn5t618"
- "ricoh,rc5t619"
- - reg: the I2C slave address of the device
-
-Optional properties:
- - interrupts: interrupt mapping for IRQ
- See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
- - system-power-controller:
- See Documentation/devicetree/bindings/power/power-controller.txt
-
-Sub-nodes:
- - regulators: the node is required if the regulator functionality is
- needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, DCDC4
- (RN5T567/RC5T619), LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7, LDO8,
- LDO9, LDO10, LDORTC1 and LDORTC2.
- LDO7-10 are specific to RC5T619.
- The common bindings for each individual regulator can be found in:
- Documentation/devicetree/bindings/regulator/regulator.txt
-
-Example:
-
- pmic@32 {
- compatible = "ricoh,rn5t618";
- reg = <0x32>;
- interrupt-parent = <&gpio5>;
- interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
- system-power-controller;
-
- regulators {
- DCDC1 {
- regulator-min-microvolt = <1050000>;
- regulator-max-microvolt = <1050000>;
- };
-
- DCDC2 {
- regulator-min-microvolt = <1175000>;
- regulator-max-microvolt = <1175000>;
- };
- };
- };
--
2.20.1


2020-09-15 17:39:12

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: mfd: Convert rn5t618 to json-schema

On Tue, Sep 08, 2020 at 10:13:03PM +0200, Andreas Kemnade wrote:
> Convert the RN5T618 binding to DT schema format. Also
> clearly state which regulators are available.
>
> Signed-off-by: Andreas Kemnade <[email protected]>
> ---
> I have noted myself here as maintainer because I wrote most of the
> code of the several subdevices, although not of the .txt-binding.
> Due to its .txt-format history BSD license was not added.
> I happily ignored the "does MAINTAINERS need updating" thing
> from checkpatch.pl, I do not know whether that PMIC should
> have a separate entry there.
>
> .../bindings/mfd/ricoh,rn5t618.yaml | 113 ++++++++++++++++++
> .../devicetree/bindings/mfd/rn5t618.txt | 52 --------
> 2 files changed, 113 insertions(+), 52 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> delete mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> new file mode 100644
> index 000000000000..9596dde7a69a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> @@ -0,0 +1,113 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/ricoh,rn5t618.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Ricoh RN5T567/RN5T618/RC5T619 PMIC
> +
> +maintainers:
> + - Andreas Kemnade <[email protected]>
> +
> +description: |
> + Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
> + integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
> + GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
> + The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
> + fuel gauge, and an ADC.
> + The RC5T619 additionnally includes USB charger detection and an RTC.
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: ricoh,rn5t567
> + then:
> + properties:
> + regulators:
> + patternProperties:
> + "^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$":
> + $ref: ../regulator/regulator.yaml
> + additionalProperties: false
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: ricoh,rn5t618
> + then:
> + properties:
> + regulators:
> + patternProperties:
> + "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$":
> + $ref: ../regulator/regulator.yaml
> + additionalProperties: false
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: ricoh,rc5t619
> + then:
> + properties:
> + regulators:
> + patternProperties:
> + "^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
> + $ref: ../regulator/regulator.yaml
> + additionalProperties: false

I prefer under 'regulators' below, you have all possible regulator
names:

patternProperties:
"^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
$ref: ../regulator/regulator.yaml

and then above you just need to restrict the possible names:

regulators:
propertyNames:
pattern: "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$"

(propertyNames schema is applied to all an object's properties and you
don't need additionalProperties here.)

> +properties:
> + compatible:
> + enum:
> + - ricoh,rn5t567
> + - ricoh,rn5t618
> + - ricoh,rc5t619
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> + description: |
> + See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt

Drop the description.

> +
> + system-power-controller:
> + type: boolean
> + description: |
> + See Documentation/devicetree/bindings/power/power-controller.txt
> +
> + regulators:
> + type: object
> +
> +additionalProperties: false
> +
> +required:
> + - compatible
> + - reg
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@32 {
> + compatible = "ricoh,rn5t618";
> + reg = <0x32>;
> + interrupt-parent = <&gpio5>;
> + interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
> + system-power-controller;
> +
> + regulators {
> + DCDC1 {
> + regulator-min-microvolt = <1050000>;
> + regulator-max-microvolt = <1050000>;
> + };
> +
> + DCDC2 {
> + regulator-min-microvolt = <1175000>;
> + regulator-max-microvolt = <1175000>;
> + };
> + };
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> deleted file mode 100644
> index 16778ea00dbc..000000000000
> --- a/Documentation/devicetree/bindings/mfd/rn5t618.txt
> +++ /dev/null
> @@ -1,52 +0,0 @@
> -* Ricoh RN5T567/RN5T618 PMIC
> -
> -Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
> -integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
> -GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
> -The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
> -fuel gauge, and an ADC.
> -The RC5T619 additionnally includes USB charger detection and an RTC.
> -
> -Required properties:
> - - compatible: must be one of
> - "ricoh,rn5t567"
> - "ricoh,rn5t618"
> - "ricoh,rc5t619"
> - - reg: the I2C slave address of the device
> -
> -Optional properties:
> - - interrupts: interrupt mapping for IRQ
> - See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
> - - system-power-controller:
> - See Documentation/devicetree/bindings/power/power-controller.txt
> -
> -Sub-nodes:
> - - regulators: the node is required if the regulator functionality is
> - needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, DCDC4
> - (RN5T567/RC5T619), LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7, LDO8,
> - LDO9, LDO10, LDORTC1 and LDORTC2.
> - LDO7-10 are specific to RC5T619.
> - The common bindings for each individual regulator can be found in:
> - Documentation/devicetree/bindings/regulator/regulator.txt
> -
> -Example:
> -
> - pmic@32 {
> - compatible = "ricoh,rn5t618";
> - reg = <0x32>;
> - interrupt-parent = <&gpio5>;
> - interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
> - system-power-controller;
> -
> - regulators {
> - DCDC1 {
> - regulator-min-microvolt = <1050000>;
> - regulator-max-microvolt = <1050000>;
> - };
> -
> - DCDC2 {
> - regulator-min-microvolt = <1175000>;
> - regulator-max-microvolt = <1175000>;
> - };
> - };
> - };
> --
> 2.20.1
>

2020-09-15 19:53:04

by Andreas Kemnade

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: mfd: Convert rn5t618 to json-schema

On Tue, 15 Sep 2020 11:11:52 -0600
Rob Herring <[email protected]> wrote:

> On Tue, Sep 08, 2020 at 10:13:03PM +0200, Andreas Kemnade wrote:
> > Convert the RN5T618 binding to DT schema format. Also
> > clearly state which regulators are available.
> >
> > Signed-off-by: Andreas Kemnade <[email protected]>
> > ---
> > I have noted myself here as maintainer because I wrote most of the
> > code of the several subdevices, although not of the .txt-binding.
> > Due to its .txt-format history BSD license was not added.
> > I happily ignored the "does MAINTAINERS need updating" thing
> > from checkpatch.pl, I do not know whether that PMIC should
> > have a separate entry there.
> >
> > .../bindings/mfd/ricoh,rn5t618.yaml | 113 ++++++++++++++++++
> > .../devicetree/bindings/mfd/rn5t618.txt | 52 --------
> > 2 files changed, 113 insertions(+), 52 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> > delete mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
> >
> > diff --git a/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> > new file mode 100644
> > index 000000000000..9596dde7a69a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> > @@ -0,0 +1,113 @@
> > +# SPDX-License-Identifier: GPL-2.0
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mfd/ricoh,rn5t618.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Ricoh RN5T567/RN5T618/RC5T619 PMIC
> > +
> > +maintainers:
> > + - Andreas Kemnade <[email protected]>
> > +
> > +description: |
> > + Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
> > + integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
> > + GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
> > + The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
> > + fuel gauge, and an ADC.
> > + The RC5T619 additionnally includes USB charger detection and an RTC.
> > +
> > +allOf:
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: ricoh,rn5t567
> > + then:
> > + properties:
> > + regulators:
> > + patternProperties:
> > + "^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$":
> > + $ref: ../regulator/regulator.yaml
> > + additionalProperties: false
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: ricoh,rn5t618
> > + then:
> > + properties:
> > + regulators:
> > + patternProperties:
> > + "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$":
> > + $ref: ../regulator/regulator.yaml
> > + additionalProperties: false
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: ricoh,rc5t619
> > + then:
> > + properties:
> > + regulators:
> > + patternProperties:
> > + "^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
> > + $ref: ../regulator/regulator.yaml
> > + additionalProperties: false
>
> I prefer under 'regulators' below, you have all possible regulator
> names:
>
> patternProperties:
> "^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
> $ref: ../regulator/regulator.yaml
>
> and then above you just need to restrict the possible names:
>
> regulators:
> propertyNames:
> pattern: "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$"
>
> (propertyNames schema is applied to all an object's properties and you
> don't need additionalProperties here.)
>
hmm, dt_binding_check refuses to digest things like this:

allOf:
- if:
properties:
compatible:
contains:
const: ricoh,rn5t567
then:
properties:
regulators:
propertyNames:
pattern: "^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$"

I get:
andi@aktux:~/kernel$ DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml makearm dt_binding_check
CHKDT Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
/home/andi/kernel/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml: allOf:0:then:properties:regulators: Additional properties are not allowed ('propertyNames' was unexpected)
/home/andi/kernel/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml: allOf:0:then:properties:regulators: 'propertyNames' is not one of ['$ref', 'additionalItems', 'additionalProperties', 'allOf', 'anyOf', 'const', 'contains', 'default', 'dependencies', 'deprecated', 'description', 'else', 'enum', 'exclusiveMaximum', 'exclusiveMinimum', 'items', 'if', 'minItems', 'minimum', 'maxItems', 'maximum', 'multipleOf', 'not', 'oneOf', 'pattern', 'patternProperties', 'properties', 'required', 'then', 'type', 'typeSize', 'unevaluatedProperties', 'uniqueItems']

andi@aktux:~/kernel/Documentation$ grep -R propertyNames *
devicetree/bindings/mfd/ricoh,rn5t618.yaml: propertyNames:
devicetree/bindings/mfd/ricoh,rn5t618.yaml: propertyNames:
devicetree/bindings/mfd/ricoh,rn5t618.yaml: propertyNames:

... and I am the only user, it is not documented.
and yes I have updated my tools
andi@aktux:~/kernel$ dt-validate --version
2020.8.1

Regards,
Andreas

2020-09-15 22:59:30

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: mfd: Convert rn5t618 to json-schema

On Tue, Sep 15, 2020 at 1:49 PM Andreas Kemnade <[email protected]> wrote:
>
> On Tue, 15 Sep 2020 11:11:52 -0600
> Rob Herring <[email protected]> wrote:
>
> > On Tue, Sep 08, 2020 at 10:13:03PM +0200, Andreas Kemnade wrote:
> > > Convert the RN5T618 binding to DT schema format. Also
> > > clearly state which regulators are available.
> > >
> > > Signed-off-by: Andreas Kemnade <[email protected]>
> > > ---
> > > I have noted myself here as maintainer because I wrote most of the
> > > code of the several subdevices, although not of the .txt-binding.
> > > Due to its .txt-format history BSD license was not added.
> > > I happily ignored the "does MAINTAINERS need updating" thing
> > > from checkpatch.pl, I do not know whether that PMIC should
> > > have a separate entry there.
> > >
> > > .../bindings/mfd/ricoh,rn5t618.yaml | 113 ++++++++++++++++++
> > > .../devicetree/bindings/mfd/rn5t618.txt | 52 --------
> > > 2 files changed, 113 insertions(+), 52 deletions(-)
> > > create mode 100644 Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> > > delete mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
> > >
> > > diff --git a/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> > > new file mode 100644
> > > index 000000000000..9596dde7a69a
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/mfd/ricoh,rn5t618.yaml
> > > @@ -0,0 +1,113 @@
> > > +# SPDX-License-Identifier: GPL-2.0
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/mfd/ricoh,rn5t618.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Ricoh RN5T567/RN5T618/RC5T619 PMIC
> > > +
> > > +maintainers:
> > > + - Andreas Kemnade <[email protected]>
> > > +
> > > +description: |
> > > + Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
> > > + integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
> > > + GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
> > > + The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
> > > + fuel gauge, and an ADC.
> > > + The RC5T619 additionnally includes USB charger detection and an RTC.
> > > +
> > > +allOf:
> > > + - if:
> > > + properties:
> > > + compatible:
> > > + contains:
> > > + const: ricoh,rn5t567
> > > + then:
> > > + properties:
> > > + regulators:
> > > + patternProperties:
> > > + "^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$":
> > > + $ref: ../regulator/regulator.yaml
> > > + additionalProperties: false
> > > + - if:
> > > + properties:
> > > + compatible:
> > > + contains:
> > > + const: ricoh,rn5t618
> > > + then:
> > > + properties:
> > > + regulators:
> > > + patternProperties:
> > > + "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$":
> > > + $ref: ../regulator/regulator.yaml
> > > + additionalProperties: false
> > > + - if:
> > > + properties:
> > > + compatible:
> > > + contains:
> > > + const: ricoh,rc5t619
> > > + then:
> > > + properties:
> > > + regulators:
> > > + patternProperties:
> > > + "^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
> > > + $ref: ../regulator/regulator.yaml
> > > + additionalProperties: false
> >
> > I prefer under 'regulators' below, you have all possible regulator
> > names:
> >
> > patternProperties:
> > "^(DCDC[1-5]|LDO[1-9]|LDO10|LDORTC[12])$":
> > $ref: ../regulator/regulator.yaml
> >
> > and then above you just need to restrict the possible names:
> >
> > regulators:
> > propertyNames:
> > pattern: "^(DCDC[1-3]|LDO[1-5]|LDORTC[12])$"
> >
> > (propertyNames schema is applied to all an object's properties and you
> > don't need additionalProperties here.)
> >
> hmm, dt_binding_check refuses to digest things like this:

That's the overly restrictive meta-schema trying to keep folks in the
lane. Sorry, I should have checked that first.

> allOf:
> - if:
> properties:
> compatible:
> contains:
> const: ricoh,rn5t567
> then:
> properties:
> regulators:
> propertyNames:
> pattern: "^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$"

So just stick with the form you had:

patternProperties:
"^(DCDC[1-4]|LDO[1-5]|LDORTC[12])$": true
additionalProperties: false

Rob