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Message-Id: <20251231030951.818-2-chenjh@rock-chips.com>
Date: Wed, 31 Dec 2025 11:09:50 +0800
From: Joseph Chen <chenjh@...k-chips.com>
To: lee@...nel.org,
lgirdwood@...il.com,
broonie@...nel.org,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org
Cc: linux-kernel@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
Joseph Chen <chenjh@...k-chips.com>
Subject: [PATCH v1 1/2] dt-bindings: mfd: Add rk801 binding
Add DT binding document for Rockchip's RK801 PMIC
Signed-off-by: Joseph Chen <chenjh@...k-chips.com>
---
.../bindings/mfd/rockchip,rk801.yaml | 199 ++++++++++++++++++
1 file changed, 199 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk801.yaml
diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk801.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk801.yaml
new file mode 100644
index 00000000000..d591125dfe8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk801.yaml
@@ -0,0 +1,199 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/rockchip,rk801.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RK801 Power Management Integrated Circuit
+
+maintainers:
+ - Joseph Chen <chenjh@...k-chips.com>
+
+description: |
+ Rockchip RK801 series PMIC. This device consists of an i2c controlled MFD
+ that includes multiple switchable regulators.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk801
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ rockchip,system-power-controller:
+ type: boolean
+ description:
+ Telling whether or not this PMIC is controlling the system power.
+
+ system-power-controller: true
+
+ wakeup-source:
+ type: boolean
+ description:
+ Device can be used as a wakeup source.
+
+ vcc1-supply:
+ description:
+ The input supply for DCDC_REG1.
+
+ vcc2-supply:
+ description:
+ The input supply for DCDC_REG2.
+
+ vcc3-supply:
+ description:
+ The input supply for DCDC_REG3.
+
+ vcc4-supply:
+ description:
+ The input supply for DCDC_REG4.
+
+ vcc5-supply:
+ description:
+ The input supply for LDO_REG1.
+
+ vcc6-supply:
+ description:
+ The input supply for LDO_REG2.
+
+ vcc7-supply:
+ description:
+ The input supply for SWITCH_REG.
+
+ regulators:
+ type: object
+ patternProperties:
+ "^(DCDC_REG[1-4]|LDO_REG[1-2]|SWITCH_REG)$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/pinctrl/rockchip.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rk801: rk801@27 {
+ compatible = "rockchip,rk801";
+ reg = <0x27>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PC0 IRQ_TYPE_LEVEL_LOW>;
+ pwrctrl-gpios = <&gpio0 RK_PC1 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>;
+ rockchip,system-power-controller;
+ wakeup-source;
+
+ vcc1-supply = <&vcc12v_dcin>;
+ vcc2-supply = <&vcc12v_dcin>;
+ vcc3-supply = <&vcc5v0_sys>;
+ vcc4-supply = <&vcc5v0_sys>;
+ vcc5-supply = <&vcc3v3_sys>;
+ vcc6-supply = <&vcc3v3_sys>;
+ vcc7-supply = <&vcc3v3_sys>;
+
+ regulators {
+ vdd_cpu: DCDC_REG1 {
+ regulator-name = "vdd_cpu";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-initial-mode = <0x1>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-mode = <0x2>;
+ regulator-off-in-suspend;
+ regulator-suspend-microvolt = <950000>;
+ };
+ };
+
+ vcc3v3_sys: DCDC_REG2 {
+ regulator-name = "vcc3v3_sys";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-initial-mode = <0x1>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-mode = <0x2>;
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-mode = <0x2>;
+ regulator-on-in-suspend;
+ };
+ };
+
+ vdd_logic: DCDC_REG4 {
+ regulator-name = "vdd_logic";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-initial-mode = <0x1>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-mode = <0x2>;
+ regulator-off-in-suspend;
+ regulator-suspend-microvolt = <900000>;
+ };
+ };
+
+ vdd0v9_sys: LDO_REG1 {
+ regulator-name = "vdd0v9_sys";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ regulator-suspend-microvolt = <900000>;
+ };
+ };
+
+ vcc_1v8: LDO_REG2 {
+ regulator-name = "vcc_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc_3v3: SWITCH_REG {
+ regulator-name = "vcc_3v3";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
+ };
+ };
+ };
+ };
--
2.25.1
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