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Message-ID: <20250729064719.2810734-1-jeff_chang@richtek.com>
Date: Tue, 29 Jul 2025 14:40:58 +0800
From: <jeff_chang@...htek.com>
To: <lgirdwood@...il.com>, <broonie@...nel.org>, <robh@...nel.org>,
<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>
CC: <jeff_chang@...htek.com>
Subject: [PATCH v5 1/2] dt-bindings: regulator: Add Richtek RT5133 Support
From: Jeff Chang <jeff_chang@...htek.com>
Add bindings for Richtek RT5133 IC Controlled PMIC
Signed-off-by: Jeff Chang <jeff_chang@...htek.com>
---
PATCH v5
1. Fix Subject RT5133
2. Update Base regulator description.
3. Move richtek,oc-shutdown-all and richtek,pgb-shutdown-all to chip layer.
4. Update richtek,oc-shutdown-all and richtek,pgb-shutdown-all description.
5. Remove rt5133-ldo-supply, just using vin-supply for pvin7 and pvin8.
Pvin7,8 are power source for LDO7,8. Referecne is LDO1 Vout.
6. Using standard examples. (Node name and IRQ type)
.../bindings/regulator/richtek,rt5133.yaml | 176 ++++++++++++++++++
1 file changed, 176 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rt5133.yaml
diff --git a/Documentation/devicetree/bindings/regulator/richtek,rt5133.yaml b/Documentation/devicetree/bindings/regulator/richtek,rt5133.yaml
new file mode 100644
index 000000000000..c12069ade224
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/richtek,rt5133.yaml
@@ -0,0 +1,176 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/richtek,rt5133.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT5133 PMIC Regulator
+
+maintainers:
+ - ShihChia Chang <jeff_chang@...htek.com>
+
+description:
+ The RT5133 is an integrated Power Management IC for portable devices, featuring
+ 8 LDOs and 3 GPOs. It allows programmable output voltages, soft-start times,
+ and protections via I2C. GPO operation depends on LDO1 voltage.
+
+properties:
+ compatible:
+ enum:
+ - richtek,rt5133
+
+ reg:
+ maxItems: 1
+
+ enable-gpios:
+ maxItems: 1
+
+ wakeup-source: true
+
+ interrupts:
+ maxItems: 1
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+ richtek,oc-shutdown-all:
+ type: boolean
+ description:
+ Controls the behavior when any LDO (Low Dropout Regulator) enters an Over Current state.
+ If set to true, all LDO channels will be shut down.
+ If set to false (default), only the affected LDO channel will shut down itself.
+
+ richtek,pgb-shutdown-all:
+ type: boolean
+ description:
+ Controls the behavior when any LDO enters a Power Bad state.
+ If set to true, all LDO channels will be shut down.
+ If set to false (default), only the affected LDO channel will shut down itself.
+
+ regulators:
+ type: object
+ additionalProperties: false
+
+ properties:
+ base:
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description:
+ Properties for the base regulator, which is the top-level supply for
+ LDO1 to LDO6. It functions merely as an on/off switch rather than
+ regulating voltages. If none of LDO1 to LDO6 are in use, switching off
+ the base will reduce the quiescent current.
+
+ required:
+ - regulator-name
+
+ patternProperties:
+ "^ldo([1-6])$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description:
+ Properties for single LDO regulator
+
+ required:
+ - regulator-name
+
+ "^ldo([7-8])$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+ description:
+ Properties for single LDO regulator
+
+ properties:
+ vin-supply: true
+
+ required:
+ - regulator-name
+ - vin-supply
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - wakeup-source
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@18 {
+ compatible = "richtek,rt5133";
+ reg = <0x18>;
+ wakeup-source;
+ interrupts-extended = <&gpio 0 IRQ_TYPE_EDGE_FALLING>;
+ enable-gpios = <&gpio 2 0>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ richtek,oc-shutdown-all;
+ richtek,pgb-shutdown-all;
+ regulators {
+ base {
+ regulator-name = "rt5133,base";
+ };
+ pvin78: ldo1 {
+ regulator-name = "rt5133-ldo1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3199998>;
+ regulator-active-discharge = <1>;
+ };
+ ldo2 {
+ regulator-name = "rt5133-ldo2";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3200000>;
+ regulator-active-discharge = <1>;
+ };
+ ldo3 {
+ regulator-name = "rt5133-ldo3";
+ regulator-min-microvolt = <1700000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-active-discharge = <1>;
+ };
+ ldo4 {
+ regulator-name = "rt5133-ldo4";
+ regulator-min-microvolt = <1700000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-active-discharge = <1>;
+ };
+ ldo5 {
+ regulator-name = "rt5133-ldo5";
+ regulator-min-microvolt = <1700000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-active-discharge = <1>;
+ };
+ ldo6 {
+ regulator-name = "rt5133-ldo6";
+ regulator-min-microvolt = <1700000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-active-discharge = <1>;
+ };
+ ldo7 {
+ regulator-name = "rt5133-ldo7";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-active-discharge = <1>;
+ vin-supply = <&pvin78>;
+ };
+ ldo8 {
+ regulator-name = "rt5133-ldo8";
+ regulator-min-microvolt = <855000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-active-discharge = <1>;
+ vin-supply = <&pvin78>;
+ };
+ };
+ };
+ };
--
2.43.0
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