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The Richtek RT5190A is used on the MT7988 reference board. Backport and enable the driver on the filogic subtarget, so we can support cpufreq on the MT7988 reference board. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
181 lines
5.5 KiB
Diff
181 lines
5.5 KiB
Diff
From b77e70f6b8f2cc62fba847f3008a430a09ef275d Mon Sep 17 00:00:00 2001
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From: ChiYuan Huang <cy_huang@richtek.com>
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Date: Wed, 9 Mar 2022 16:01:42 +0800
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Subject: [PATCH 1/2] regulator: Add bindings for Richtek RT5190A PMIC
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Add bindings for Richtek RT5190A PMIC.
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Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
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Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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Link: https://lore.kernel.org/r/1646812903-32496-2-git-send-email-u0084500@gmail.com
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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.../regulator/richtek,rt5190a-regulator.yaml | 141 ++++++++++++++++++
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.../regulator/richtek,rt5190a-regulator.h | 15 ++
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2 files changed, 156 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml
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create mode 100644 include/dt-bindings/regulator/richtek,rt5190a-regulator.h
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/regulator/richtek,rt5190a-regulator.yaml
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@@ -0,0 +1,141 @@
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/regulator/richtek,rt5190a-regulator.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Richtek RT5190A PMIC Regulator
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+
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+maintainers:
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+ - ChiYuan Huang <cy_huang@richtek.com>
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+
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+description: |
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+ The RT5190A integrates 1 channel buck controller, 3 channels high efficiency
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+ synchronous buck converters, 1 LDO, I2C control interface and peripherial
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+ logical control.
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+
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+ It also supports mute AC OFF depop sound and quick setting storage while
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+ input power is removed.
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+
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+properties:
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+ compatible:
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+ enum:
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+ - richtek,rt5190a
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+
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+ reg:
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+ maxItems: 1
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+
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+ interrupts:
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+ maxItems: 1
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+
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+ vin2-supply:
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+ description: phandle to buck2 input voltage.
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+
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+ vin3-supply:
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+ description: phandle to buck3 input voltage.
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+
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+ vin4-supply:
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+ description: phandle to buck4 input voltage.
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+
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+ vinldo-supply:
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+ description: phandle to ldo input voltage
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+
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+ richtek,mute-enable:
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+ description: |
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+ The mute function uses 'mutein', 'muteout', and 'vdet' pins as the control
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+ signal. When enabled, The normal behavior is to bypass the 'mutein' signal
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+ 'muteout'. But if the power source removal is detected from 'vdet',
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+ whatever the 'mutein' signal is, it will pull down the 'muteout' to force
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+ speakers mute. this function is commonly used to prevent the speaker pop
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+ noise during AC power turned off in the modern TV system design.
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+ type: boolean
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+
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+ regulators:
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+ type: object
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+
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+ patternProperties:
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+ "^buck[1-4]$|^ldo$":
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+ type: object
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+ $ref: regulator.yaml#
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+ description: |
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+ regulator description for buck1 and buck4.
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+
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+ properties:
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+ regulator-allowed-modes:
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+ description: |
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+ buck operating mode, only buck1/4 support mode operating.
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+ 0: auto mode
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+ 1: force pwm mode
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+ items:
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+ enum: [0, 1]
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+
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+ richtek,latchup-enable:
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+ type: boolean
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+ description: |
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+ If specified, undervolt protection mode changes from the default
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+ hiccup to latchup.
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+
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+ unevaluatedProperties: false
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+
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+ additionalProperties: false
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+
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+required:
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+ - compatible
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+ - reg
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+ - regulators
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+
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+additionalProperties: false
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+
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+examples:
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+ - |
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+ #include <dt-bindings/interrupt-controller/irq.h>
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+ #include <dt-bindings/regulator/richtek,rt5190a-regulator.h>
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+
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+ i2c {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ pmic@64 {
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+ compatible = "richtek,rt5190a";
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+ reg = <0x64>;
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+ interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>;
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+ vin2-supply = <&rt5190_buck1>;
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+ vin3-supply = <&rt5190_buck1>;
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+ vin4-supply = <&rt5190_buck1>;
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+
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+ regulators {
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+ rt5190_buck1: buck1 {
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+ regulator-name = "rt5190a-buck1";
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+ regulator-min-microvolt = <5090000>;
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+ regulator-max-microvolt = <5090000>;
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+ regulator-allowed-modes = <RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>;
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+ regulator-boot-on;
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+ };
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+ buck2 {
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+ regulator-name = "rt5190a-buck2";
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+ regulator-min-microvolt = <600000>;
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+ regulator-max-microvolt = <1400000>;
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+ regulator-boot-on;
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+ };
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+ buck3 {
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+ regulator-name = "rt5190a-buck3";
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+ regulator-min-microvolt = <600000>;
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+ regulator-max-microvolt = <1400000>;
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+ regulator-boot-on;
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+ };
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+ buck4 {
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+ regulator-name = "rt5190a-buck4";
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+ regulator-min-microvolt = <850000>;
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+ regulator-max-microvolt = <850000>;
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+ regulator-allowed-modes = <RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>;
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+ regulator-boot-on;
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+ };
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+ ldo {
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+ regulator-name = "rt5190a-ldo";
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+ regulator-min-microvolt = <1200000>;
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+ regulator-max-microvolt = <1200000>;
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+ regulator-boot-on;
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+ };
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+ };
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+ };
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+ };
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--- /dev/null
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+++ b/include/dt-bindings/regulator/richtek,rt5190a-regulator.h
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@@ -0,0 +1,15 @@
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+/* SPDX-License-Identifier: GPL-2.0 */
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+
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+#ifndef __DT_BINDINGS_RICHTEK_RT5190A_REGULATOR_H__
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+#define __DT_BINDINGS_RICHTEK_RT5190A_REGULATOR_H__
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+
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+/*
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+ * BUCK/LDO mode constants which may be used in devicetree properties
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+ * (eg. regulator-allowed-modes).
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+ * See the manufacturer's datasheet for more information on these modes.
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+ */
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+
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+#define RT5190A_OPMODE_AUTO 0
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+#define RT5190A_OPMODE_FPWM 1
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+
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+#endif
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