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From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: djakov@kernel.org
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Subject: [PATCH v2 1/7] dt-bindings: regulator: Add bindings for MediaTek DVFSRC Regulators
Date: Wed, 17 Apr 2024 11:14:36 +0200
Message-ID: <20240417091442.170505-2-angelogioacchino.delregno@collabora.com>
In-Reply-To: <20240417091442.170505-1-angelogioacchino.delregno@collabora.com>
References: <20240417091442.170505-1-angelogioacchino.delregno@collabora.com>
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The Dynamic Voltage and Frequency Scaling Resource Collector Regulators
are controlled with votes to the DVFSRC hardware.

This adds support for the regulators found in MT6873, MT8183, MT8192
and MT8195 SoCs.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../mediatek,mt6873-dvfsrc-regulator.yaml     | 71 +++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/mediatek,mt6873-dvfsrc-regulator.yaml

diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6873-dvfsrc-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6873-dvfsrc-regulator.yaml
new file mode 100644
index 000000000000..446f1dab4d2e
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6873-dvfsrc-regulator.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek DVFSRC-controlled Regulators
+
+description:
+  The Dynamic Voltage and Frequency Scaling Resource Collector Regulators
+  are controlled with votes to the DVFSRC hardware.
+
+maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt6873-dvfsrc-regulator
+      - mediatek,mt8183-dvfsrc-regulator
+      - mediatek,mt8192-dvfsrc-regulator
+      - mediatek,mt8195-dvfsrc-regulator
+
+  reg:
+    maxItems: 1
+
+  dvfsrc-vcore:
+    description: DVFSRC-controlled SoC Vcore regulator
+    $ref: regulator.yaml#
+
+  dvfsrc-vscp:
+    description: DVFSRC-controlled System Control Processor regulator
+    $ref: regulator.yaml#
+
+required:
+  - compatible
+
+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;
+                };
+            };
+        };
+    };
-- 
2.44.0