diff mbox series

[v3,3/7] dt-bindings: soc: mediatek: Add DVFSRC bindings for MT8183 and MT8195

Message ID 20240418082812.152270-4-angelogioacchino.delregno@collabora.com
State Superseded
Headers show
Series MediaTek DVFSRC Bus Bandwidth and Regulator knobs | expand

Checks

Context Check Description
robh/checkpatch success
robh/patch-applied success
robh/dt-meta-schema fail build log

Commit Message

AngeloGioacchino Del Regno April 18, 2024, 8:28 a.m. UTC
Add bindings for the MediaTek Dynamic Voltage and Frequency Scaling
Resource Collector (DVFSRC), a hardware module used to collect all the
requests from both software and the various remote processors embedded
into the SoC and decide about a minimum operating voltage and a minimum
DRAM frequency to fulfill those requests in an effort to provide the
best achievable performance per watt.

This hardware IP is capable of transparently performing direct register
R/W on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../soc/mediatek/mediatek,mt8183-dvfsrc.yaml  | 94 +++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml

Comments

Rob Herring (Arm) April 18, 2024, 9:36 a.m. UTC | #1
On Thu, 18 Apr 2024 10:28:08 +0200, AngeloGioacchino Del Regno wrote:
> Add bindings for the MediaTek Dynamic Voltage and Frequency Scaling
> Resource Collector (DVFSRC), a hardware module used to collect all the
> requests from both software and the various remote processors embedded
> into the SoC and decide about a minimum operating voltage and a minimum
> DRAM frequency to fulfill those requests in an effort to provide the
> best achievable performance per watt.
> 
> This hardware IP is capable of transparently performing direct register
> R/W on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  .../soc/mediatek/mediatek,mt8183-dvfsrc.yaml  | 94 +++++++++++++++++++
>  1 file changed, 94 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
> 

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/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: system-controller@10012000: regulators@0: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: system-controller@10012000: interconnect@1: Unevaluated properties are not allowed ('reg' was unexpected)
	from schema $id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: regulators@0: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: interconnect@1: Unevaluated properties are not allowed ('reg' was unexpected)
	from schema $id: http://devicetree.org/schemas/interconnect/mediatek,mt8183-emi.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240418082812.152270-4-angelogioacchino.delregno@collabora.com

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.
AngeloGioacchino Del Regno April 18, 2024, 9:37 a.m. UTC | #2
Il 18/04/24 11:36, Rob Herring ha scritto:
> 
> On Thu, 18 Apr 2024 10:28:08 +0200, AngeloGioacchino Del Regno wrote:
>> Add bindings for the MediaTek Dynamic Voltage and Frequency Scaling
>> Resource Collector (DVFSRC), a hardware module used to collect all the
>> requests from both software and the various remote processors embedded
>> into the SoC and decide about a minimum operating voltage and a minimum
>> DRAM frequency to fulfill those requests in an effort to provide the
>> best achievable performance per watt.
>>
>> This hardware IP is capable of transparently performing direct register
>> R/W on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>> ---
>>   .../soc/mediatek/mediatek,mt8183-dvfsrc.yaml  | 94 +++++++++++++++++++
>>   1 file changed, 94 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
>>
> 
> 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/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: system-controller@10012000: regulators@0: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
> 	from schema $id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: system-controller@10012000: interconnect@1: Unevaluated properties are not allowed ('reg' was unexpected)
> 	from schema $id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: regulators@0: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
> 	from schema $id: http://devicetree.org/schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.example.dtb: interconnect@1: Unevaluated properties are not allowed ('reg' was unexpected)
> 	from schema $id: http://devicetree.org/schemas/interconnect/mediatek,mt8183-emi.yaml#
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240418082812.152270-4-angelogioacchino.delregno@collabora.com
> 
> 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.
> 

Whoops. Forgot to update this one. Sending v4.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
new file mode 100644
index 000000000000..da948098eebe
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
@@ -0,0 +1,94 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC)
+
+description:
+  The Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC) is a
+  Hardware module used to collect all the requests from both software and the
+  various remote processors embedded into the SoC and decide about a minimum
+  operating voltage and a minimum DRAM frequency to fulfill those requests in
+  an effort to provide the best achievable performance per watt.
+  This hardware IP is capable of transparently performing direct register R/W
+  on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
+
+maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+  - Henry Chen <henryc.chen@mediatek.com>
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - mediatek,mt8183-dvfsrc
+          - mediatek,mt8195-dvfsrc
+      - items:
+          - const: mediatek,mt8192-dvfsrc
+          - const: mediatek,mt8195-dvfsrc
+
+  reg:
+    maxItems: 1
+    description: DVFSRC common register address and length.
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    enum: [ 0, 1 ]
+
+patternProperties:
+  "regulators@[0-9a-f]+$":
+    type: object
+    $ref: /schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#
+
+  "interconnect@[0-9a-f]+$":
+    type: object
+    $ref: /schemas/interconnect/mediatek,mt8183-emi.yaml#
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        system-controller@10012000 {
+            compatible = "mediatek,mt8195-dvfsrc";
+            reg = <0 0x10012000 0 0x1000>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            regulators@0 {
+                compatible = "mediatek,mt8195-dvfsrc-regulator";
+                reg = <0>;
+
+                dvfsrc_vcore: dvfsrc-vcore {
+                        regulator-name = "dvfsrc-vcore";
+                        regulator-min-microvolt = <550000>;
+                        regulator-max-microvolt = <750000>;
+                        regulator-always-on;
+                };
+
+                dvfsrc_vscp: dvfsrc-vscp {
+                        regulator-name = "dvfsrc-vscp";
+                        regulator-min-microvolt = <550000>;
+                        regulator-max-microvolt = <750000>;
+                        regulator-always-on;
+                };
+            };
+
+            emi_icc: interconnect@1 {
+                compatible = "mediatek,mt8195-emi";
+                reg = <1>;
+                #interconnect-cells = <1>;
+            };
+        };
+    };