* [PATCH v2] dt-bindings: power: Convert mediatek,mt2701-scpsys to DT schema
@ 2026-09-28 22:25 Rob Herring (Arm)
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From: Rob Herring (Arm) @ 2026-09-28 22:25 UTC (permalink / raw)
To: Krzysztof Kozlowski, Conor Dooley, Matthias Brugger,
AngeloGioacchino Del Regno
Cc: devicetree, linux-kernel, linux-arm-kernel, linux-mediatek
Convert the mediatek,mt2701-scpsys binding to DT schema. The mt6735 and
mt6765 don't exist anywhere. The mt8183 is covered by
mediatek,mt8195-scpsys.yaml schema. With those dropped, the clock-names
are trimmed to drop mm-*, isp-*, cam-*, and venc_lt. The venc_lt and
mfg_2d supplies are dropped as well.
Assisted-by: LLM
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
v2:
- Add per compatible clocks/clock-names constraints
---
.../power/mediatek,mt2701-scpsys.yaml | 184 ++++++++++++++++++
.../bindings/soc/mediatek/scpsys.txt | 79 --------
2 files changed, 184 insertions(+), 79 deletions(-)
create mode 100644 Documentation/devicetree/bindings/power/mediatek,mt2701-scpsys.yaml
delete mode 100644 Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
diff --git a/Documentation/devicetree/bindings/power/mediatek,mt2701-scpsys.yaml b/Documentation/devicetree/bindings/power/mediatek,mt2701-scpsys.yaml
new file mode 100644
index 000000000000..75c84abc865f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/mediatek,mt2701-scpsys.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/mediatek,mt2701-scpsys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek SCPSYS
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+description: >
+ The System Control Processor System (SCPSYS) has several power management
+ related tasks in the system. The tasks include thermal measurement, dynamic
+ voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control.
+ The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power
+ domain control.
+
+ It provides the power domains defined in:
+ - include/dt-bindings/power/mt2701-power.h
+ - include/dt-bindings/power/mt2712-power.h
+ - include/dt-bindings/power/mt6797-power.h
+ - include/dt-bindings/power/mt7622-power.h
+ - include/dt-bindings/power/mt7623a-power.h
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - mediatek,mt7623a-scpsys
+ - mediatek,mt6797-scpsys
+ - items:
+ - enum:
+ - mediatek,mt2701-scpsys
+ - mediatek,mt2712-scpsys
+ - mediatek,mt7622-scpsys
+ - const: syscon
+ - items:
+ - const: mediatek,mt7623-scpsys
+ - const: mediatek,mt2701-scpsys
+ - const: syscon
+ - items:
+ - const: mediatek,mt7629-scpsys
+ - const: mediatek,mt7622-scpsys
+
+ '#power-domain-cells':
+ description: Always 1
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 4
+
+ clocks:
+ minItems: 1
+ maxItems: 20
+
+ clock-names:
+ minItems: 1
+ maxItems: 6
+ items:
+ enum:
+ - mm
+ - mfg
+ - ethif
+ - venc
+ - jpgdec
+ - audio
+ - vdec
+ - hif_sel
+
+ vdec-supply: true
+ venc-supply: true
+ isp-supply: true
+ mm-supply: true
+ audio-supply: true
+ usb-supply: true
+ mfg_async-supply: true
+ mfg-supply: true
+
+ infracfg:
+ description: Infrastructure configuration controller phandle
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - '#power-domain-cells'
+ - reg
+ - infracfg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt2701-scpsys
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: mm
+ - const: mfg
+ - const: ethif
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt7623a-scpsys
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: ethif
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt2712-scpsys
+ then:
+ properties:
+ clocks:
+ minItems: 6
+ clock-names:
+ items:
+ - const: mm
+ - const: mfg
+ - const: venc
+ - const: jpgdec
+ - const: audio
+ - const: vdec
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt7622-scpsys
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: hif_sel
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt6797-scpsys
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: mfg
+ - const: mm
+ - const: vdec
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt2701-clk.h>
+
+ power-controller@10006000 {
+ #power-domain-cells = <1>;
+ compatible = "mediatek,mt2701-scpsys", "syscon";
+ reg = <0x10006000 0x1000>;
+ infracfg = <&infracfg>;
+ clocks = <&topckgen CLK_TOP_MM_SEL>,
+ <&topckgen CLK_TOP_MFG_SEL>,
+ <&topckgen CLK_TOP_ETHIF_SEL>;
+ clock-names = "mm", "mfg", "ethif";
+ };
diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
deleted file mode 100644
index 3530a6668b48..000000000000
--- a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
+++ /dev/null
@@ -1,79 +0,0 @@
-MediaTek SCPSYS
-===============
-
-The System Control Processor System (SCPSYS) has several power management
-related tasks in the system. The tasks include thermal measurement, dynamic
-voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control.
-The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power
-domain control.
-
-The driver implements the Generic PM domain bindings described in
-power/power-domain.yaml. It provides the power domains defined in
-- include/dt-bindings/power/mt8173-power.h
-- include/dt-bindings/power/mt6797-power.h
-- include/dt-bindings/power/mt6765-power.h
-- include/dt-bindings/power/mt2701-power.h
-- include/dt-bindings/power/mt2712-power.h
-- include/dt-bindings/power/mt7622-power.h
-
-Required properties:
-- compatible: Should be one of:
- - "mediatek,mt2701-scpsys"
- - "mediatek,mt2712-scpsys"
- - "mediatek,mt6735-scpsys"
- - "mediatek,mt6765-scpsys"
- - "mediatek,mt6797-scpsys"
- - "mediatek,mt7622-scpsys"
- - "mediatek,mt7623-scpsys", "mediatek,mt2701-scpsys": For MT7623 SoC
- - "mediatek,mt7623a-scpsys": For MT7623A SoC
- - "mediatek,mt7629-scpsys", "mediatek,mt7622-scpsys": For MT7629 SoC
- - "mediatek,mt8173-scpsys"
-- #power-domain-cells: Must be 1
-- reg: Address range of the SCPSYS unit
-- infracfg: must contain a phandle to the infracfg controller
-- clock, clock-names: clocks according to the common clock binding.
- These are clocks which hardware needs to be
- enabled before enabling certain power domains.
- Required clocks for MT2701 or MT7623: "mm", "mfg", "ethif"
- Required clocks for MT2712: "mm", "mfg", "venc", "jpgdec", "audio", "vdec"
- Required clocks for MT6765: MUX: "mm", "mfg"
- CG: "mm-0", "mm-1", "mm-2", "mm-3", "isp-0",
- "isp-1", "cam-0", "cam-1", "cam-2",
- "cam-3","cam-4"
- Required clocks for MT6797: "mm", "mfg", "vdec"
- Required clocks for MT7622 or MT7629: "hif_sel"
- Required clocks for MT7623A: "ethif"
- Required clocks for MT8173: "mm", "mfg", "venc", "venc_lt"
-
-Optional properties:
-- vdec-supply: Power supply for the vdec power domain
-- venc-supply: Power supply for the venc power domain
-- isp-supply: Power supply for the isp power domain
-- mm-supply: Power supply for the mm power domain
-- venc_lt-supply: Power supply for the venc_lt power domain
-- audio-supply: Power supply for the audio power domain
-- usb-supply: Power supply for the usb power domain
-- mfg_async-supply: Power supply for the mfg_async power domain
-- mfg_2d-supply: Power supply for the mfg_2d power domain
-- mfg-supply: Power supply for the mfg power domain
-
-Example:
-
- scpsys: scpsys@10006000 {
- #power-domain-cells = <1>;
- compatible = "mediatek,mt8173-scpsys";
- reg = <0 0x10006000 0 0x1000>;
- infracfg = <&infracfg>;
- clocks = <&clk26m>,
- <&topckgen CLK_TOP_MM_SEL>;
- <&topckgen CLK_TOP_VENC_SEL>,
- <&topckgen CLK_TOP_VENC_LT_SEL>;
- clock-names = "mfg", "mm", "venc", "venc_lt";
- };
-
-Example consumer:
-
- afe: mt8173-afe-pcm@11220000 {
- compatible = "mediatek,mt8173-afe-pcm";
- power-domains = <&scpsys MT8173_POWER_DOMAIN_AUDIO>;
- };
--
2.53.0
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2026-09-28 22:25 [PATCH v2] dt-bindings: power: Convert mediatek,mt2701-scpsys to DT schema Rob Herring (Arm)
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