On Wed, May 26, 2021 at 07:28:07PM +0100, Sudeep Holla wrote:
> Convert the old text format binding for System Control and Management Interface
> (SCMI) Message Protocol into the new and shiny YAML format.
>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Cristian Marussi <cristian.marussi@xxxxxxx>
> Cc: Florian Fainelli <f.fainelli@xxxxxxxxx>
> Cc: Jim Quinlan <jim2101024@xxxxxxxxx>
> Cc: Etienne Carriere <etienne.carriere@xxxxxxxxxx>
> Cc: Peter Hilber <peter.hilber@xxxxxxxxxxxxxxx>
> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> ---
> .../devicetree/bindings/arm/arm,scmi.txt | 224 ---------------
> .../bindings/firmware/arm,scmi.yaml | 270 ++++++++++++++++++
> 2 files changed, 270 insertions(+), 224 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/arm/arm,scmi.txt
> create mode 100644 Documentation/devicetree/bindings/firmware/arm,scmi.yaml
>
> Hi,
>
> I have converted all the bindings except the below regulator part of the
> binding. This needs to be addressed before merging ofcourse. Just posting
> the remaining changes to get feedback and also ask suggestion for the below:
>
> scmi_voltage: protocol@17 {
> reg = <0x17>;
> regulators {
> regulator_devX: regulator@0 {
> reg = <0x0>;
> regulator-max-microvolt = <3300000>;
> };
>
> regulator_devY: regulator@9 {
> reg = <0x9>;
> regulator-min-microvolt = <500000>;
> regulator-max-microvolt = <4200000>;
> };
> };
> };
>
> I will reply with things I have tried separately to avoid confusion with this
> the patch here.
>
Below is the patch I have tried. I even started without a separate binding
for scmi regulator. Irrespective of what I have tried so far, I keep getting
the same error, I even added '#address-cells' and '#size-cells' to the node
but makes no difference.
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml
Documentation/devicetree/bindings/firmware/arm,scmi.example.dts:62.19-31: Warning (reg_format): /example-0/firmware/scmi/protocol@17/regulators/regulator@0:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
Documentation/devicetree/bindings/firmware/arm,scmi.example.dts:67.19-31: Warning (reg_format): /example-0/firmware/scmi/protocol@17/regulators/regulator@9:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml: Warning (pci_device_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/firmware/arm,scmi.example.dts:61.45-64.19: Warning (avoid_default_addr_size): /example-0/firmware/scmi/protocol@17/regulators/regulator@0: Relying on default #address-cells value
Documentation/devicetree/bindings/firmware/arm,scmi.example.dts:61.45-64.19: Warning (avoid_default_addr_size): /example-0/firmware/scmi/protocol@17/regulators/regulator@0: Relying on default #size-cells value
Documentation/devicetree/bindings/firmware/arm,scmi.example.dts:66.45-70.19: Warning (avoid_default_addr_size): /example-0/firmware/scmi/protocol@17/regulators/regulator@9: Relying on default #address-cells value
Documentation/devicetree/bindings/firmware/arm,scmi.example.dts:66.45-70.19: Warning (avoid_default_addr_size): /example-0/firmware/scmi/protocol@17/regulators/regulator@9: Relying on default #size-cells value
Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml: Warning (unique_unit_address): Failed prerequisite 'avoid_default_addr_size'
CHECK Documentation/devicetree/bindings/firmware/arm,scmi.example.dt.yaml
Regards,
Sudeep
--->8
diff --git c/Documentation/devicetree/bindings/firmware/arm,scmi.yaml i/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 36072585fc45..1fe23ef36adf 100644
--- c/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ i/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -101,6 +101,10 @@ description: |
'#thermal-sensor-cells':
const: 1
+ '^regulator@[0-9]+$':
+ type: object
+ $ref: "/schemas/regulator/arm,scmi-regulator.yaml#"
+
required:
- compatible
- shmem
@@ -173,6 +177,21 @@ description: |
scmi_voltage: protocol@17 {
reg = <0x17>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ regulators {
+ regulator_devX: regulator@0 {
+ reg = <0x0>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ regulator_devY: regulator@9 {
+ reg = <0x9>;
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <4200000>;
+ };
+ };
};
};
};
diff --git c/Documentation/devicetree/bindings/regulator/arm,scmi-regulator.yaml i/Documentation/devicetree/bindings/regulator/arm,scmi-regulator.yaml
new file mode 100644
index 000000000000..2111676e3494
--- /dev/null
+++ i/Documentation/devicetree/bindings/regulator/arm,scmi-regulator.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/arm,scmi-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM SCMI controlled voltage regulators
+
+maintainers:
+ - Sudeep Holla <sudeep.holla@xxxxxxx>
+
+description:
+ Any property defined as part of the core regulator binding, defined in
+ regulator.yaml, can also be used.
+
+allOf:
+ - $ref: "regulator.yaml#"
+
+properties:
+ reg:
+ maxItems: 1
+ description: Identifier for the voltage regulator.
+
+required:
+ - reg
+
+unevaluatedProperties: false
