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Date: Fri, 21 Jul 2023 18:17:12 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH] dt-bindings: mfd: maxim,max8998: Convert to DT schema
Convert the bindings for Maxim MAX8998, National/TI LP3974 Power
Management IC to DT schema. Adjust example to real DTS and make second
interrupt optional (like on s5pv210-aries.dtsi).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
.../devicetree/bindings/mfd/max8998.txt | 125 -------
.../bindings/mfd/maxim,max8998.yaml | 324 ++++++++++++++++++
2 files changed, 324 insertions(+), 125 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mfd/max8998.txt
create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt
deleted file mode 100644
index 4ed52184d081..000000000000
--- a/Documentation/devicetree/bindings/mfd/max8998.txt
+++ /dev/null
@@ -1,125 +0,0 @@
-* Maxim MAX8998, National/TI LP3974 multi-function device
-
-The Maxim MAX8998 is a multi-function device which includes voltage/current
-regulators, real time clock, battery charging controller and several
-other sub-blocks. It is interfaced using an I2C interface. Each sub-block
-is addressed by the host system using different i2c slave address.
-
-PMIC sub-block
---------------
-
-The PMIC sub-block contains a number of voltage and current regulators,
-with controllable parameters and dynamic voltage scaling capability.
-In addition, it includes a real time clock and battery charging controller
-as well. It is accessible at I2C address 0x66.
-
-Required properties:
-- compatible: Should be one of the following:
- - "maxim,max8998" for Maxim MAX8998
- - "national,lp3974" or "ti,lp3974" for National/TI LP3974.
-- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
-
-Optional properties:
-- interrupts: Interrupt specifiers for two interrupt sources.
- - First interrupt specifier is for main interrupt.
- - Second interrupt specifier is for power-on/-off interrupt.
-- max8998,pmic-buck1-dvs-gpios: GPIO specifiers for two host gpios used
- for buck 1 dvs. The format of the gpio specifier depends on the gpio
- controller.
-- max8998,pmic-buck2-dvs-gpio: GPIO specifier for host gpio used
- for buck 2 dvs. The format of the gpio specifier depends on the gpio
- controller.
-- max8998,pmic-buck1-default-dvs-idx: Default voltage setting selected from
- the possible 4 options selectable by the dvs gpios. The value of this
- property should be 0, 1, 2 or 3. If not specified or out of range,
- a default value of 0 is taken.
-- max8998,pmic-buck2-default-dvs-idx: Default voltage setting selected from
- the possible 2 options selectable by the dvs gpios. The value of this
- property should be 0 or 1. If not specified or out of range, a default
- value of 0 is taken.
-- max8998,pmic-buck-voltage-lock: If present, disallows changing of
- preprogrammed buck dvfs voltages.
-
-Additional properties required if max8998,pmic-buck1-dvs-gpios is defined:
-- max8998,pmic-buck1-dvs-voltage: An array of 4 voltage values in microvolts
- for buck1 regulator that can be selected using dvs gpio.
-
-Additional properties required if max8998,pmic-buck2-dvs-gpio is defined:
-- max8998,pmic-buck2-dvs-voltage: An array of 2 voltage values in microvolts
- for buck2 regulator that can be selected using dvs gpio.
-
-Regulators: All the regulators of MAX8998 to be instantiated shall be
-listed in a child node named 'regulators'. Each regulator is represented
-by a child node of the 'regulators' node.
-
- regulator-name {
- /* standard regulator bindings here */
- };
-
-Following regulators of the MAX8998 PMIC block are supported. Note that
-the 'n' in regulator name, as in LDOn or BUCKn, represents the LDO or BUCK
-number as described in MAX8998 datasheet.
-
- - LDOn
- - valid values for n are 2 to 17
- - Example: LDO2, LDO10, LDO17
- - BUCKn
- - valid values for n are 1 to 4.
- - Example: BUCK1, BUCK2, BUCK3, BUCK4
-
- - ENVICHG: Battery Charging Current Monitor Output. This is a fixed
- voltage type regulator
-
- - ESAFEOUT1: (ldo19)
- - ESAFEOUT2: (ld020)
-
- - CHARGER: main battery charger current control
-
-Standard regulator bindings are used inside regulator subnodes. Check
- Documentation/devicetree/bindings/regulator/regulator.txt
-for more details.
-
-Example:
-
- pmic@66 {
- compatible = "maxim,max8998-pmic";
- reg = <0x66>;
- interrupt-parent = <&wakeup_eint>;
- interrupts = <4 0>, <3 0>;
-
- /* Buck 1 DVS settings */
- max8998,pmic-buck1-default-dvs-idx = <0>;
- max8998,pmic-buck1-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */
- <&gpx0 1 1 0 0>; /* SET2 */
- max8998,pmic-buck1-dvs-voltage = <1350000>, <1300000>,
- <1000000>, <950000>;
-
- /* Buck 2 DVS settings */
- max8998,pmic-buck2-default-dvs-idx = <0>;
- max8998,pmic-buck2-dvs-gpio = <&gpx0 0 3 0 0>; /* SET3 */
- max8998,pmic-buck2-dvs-voltage = <1350000>, <1300000>;
-
- /* Regulators to instantiate */
- regulators {
- ldo2_reg: LDO2 {
- regulator-name = "VDD_ALIVE_1.1V";
- regulator-min-microvolt = <1100000>;
- regulator-max-microvolt = <1100000>;
- regulator-always-on;
- };
-
- buck1_reg: BUCK1 {
- regulator-name = "VDD_ARM_1.2V";
- regulator-min-microvolt = <950000>;
- regulator-max-microvolt = <1350000>;
- regulator-always-on;
- regulator-boot-on;
- };
-
- charger_reg: CHARGER {
- regulator-name = "CHARGER";
- regulator-min-microamp = <90000>;
- regulator-max-microamp = <800000>;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml b/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
new file mode 100644
index 000000000000..f3c3f64fd012
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
@@ -0,0 +1,324 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max8998.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX8998, National/TI LP3974 Power Management IC
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@...nel.org>
+
+description:
+ The Maxim MAX8998 is a Power Management IC which includes voltage/current
+ regulators, real time clock, battery charging controller and several other
+ sub-blocks. It is interfaced using an I2C interface. Each sub-block is
+ addressed by the host system using different i2c slave address.
+
+properties:
+ compatible:
+ enum:
+ - maxim,max8998
+ - national,lp3974
+ - ti,lp3974
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ items:
+ - description: Main interrupt
+ - description: Power-on/-off interrupt
+
+ max8998,pmic-buck1-dvs-gpios:
+ maxItems: 2
+ description:
+ Two host gpios used for buck1 DVS.
+
+ max8998,pmic-buck2-dvs-gpio:
+ maxItems: 1
+ description:
+ Host gpio used for buck2 DVS.
+
+ max8998,pmic-buck1-default-dvs-idx:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2, 3]
+ default: 0
+ description:
+ Default voltage setting selected from the possible 4 options selectable
+ by the DVS gpios.
+
+ max8998,pmic-buck2-default-dvs-idx:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ default: 0
+ description:
+ Default voltage setting selected from the possible 2 options selectable
+ by the DVS GPIOs.
+
+ max8998,pmic-buck-voltage-lock:
+ type: boolean
+ description:
+ If present, disallows changing of preprogrammed buck DVS voltages.
+
+ max8998,pmic-buck1-dvs-voltage:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ maxItems: 4
+ description:
+ Four voltage values in microvolts for buck1 regulator that can be
+ selected using DVS GPIO.
+
+ max8998,pmic-buck2-dvs-voltage:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ maxItems: 2
+ description:
+ Two voltage values in microvolts for buck2 regulator that can be
+ selected using DVS GPIO.
+
+ regulators:
+ type: object
+ additionalProperties: false
+
+ properties:
+ CHARGER:
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+ description:
+ CHARGER is main battery charger current control, wrongly represented
+ as regulator.
+
+ properties:
+ regulator-min-microamp:
+ minimum: 90000
+ maximum: 800000
+
+ regulator-max-microamp:
+ minimum: 90000
+ maximum: 800000
+
+ regulator-min-microvolt: false
+ regulator-max-microvolt: false
+
+ required:
+ - regulator-name
+
+ patternProperties:
+ "^(LDO([2-9]|1[0-7])|BUCK[1-4])$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+
+ required:
+ - regulator-name
+
+ "^(EN32KHz-AP|EN32KHz-CP|ENVICHG|ESAFEOUT[12])$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+ description: |
+ EN32KHz-AP and EN32KHz-CP are 32768 Hz clocks, wrongly represented as
+ regulators.
+ ENVICHG is a Battery Charging Current Monitor Output.
+
+ properties:
+ regulator-min-microvolt: false
+ regulator-max-microvolt: false
+
+ required:
+ - regulator-name
+
+dependencies:
+ max8998,pmic-buck1-dvs-gpios: [ "max8998,pmic-buck1-dvs-voltage" ]
+ max8998,pmic-buck2-dvs-gpio: [ "max8998,pmic-buck2-dvs-voltage" ]
+
+required:
+ - compatible
+ - reg
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@66 {
+ compatible = "national,lp3974";
+ reg = <0x66>;
+ interrupts-extended = <&gpx0 7 IRQ_TYPE_LEVEL_LOW>,
+ <&gpx2 7 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&lp3974_irq>;
+
+ max8998,pmic-buck1-default-dvs-idx = <0>;
+ max8998,pmic-buck1-dvs-gpios = <&gpx0 5 GPIO_ACTIVE_HIGH>,
+ <&gpx0 6 GPIO_ACTIVE_HIGH>;
+ max8998,pmic-buck1-dvs-voltage = <1100000>, <1000000>,
+ <1100000>, <1000000>;
+ max8998,pmic-buck2-default-dvs-idx = <0>;
+ max8998,pmic-buck2-dvs-gpio = <&gpe2 0 GPIO_ACTIVE_HIGH>;
+ max8998,pmic-buck2-dvs-voltage = <1200000>, <1100000>;
+
+ regulators {
+ LDO2 {
+ regulator-name = "VALIVE_1.2V";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ };
+
+ LDO3 {
+ regulator-name = "VUSB+MIPI_1.1V";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-always-on;
+ };
+
+ LDO4 {
+ regulator-name = "VADC_3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ LDO5 {
+ regulator-name = "VTF_2.8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+
+ LDO6 {
+ regulator-name = "LDO6";
+ regulator-min-microvolt = <2000000>;
+ regulator-max-microvolt = <2000000>;
+ };
+
+ LDO7 {
+ regulator-name = "VLCD+VMIPI_1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ LDO8 {
+ regulator-name = "VUSB+VDAC_3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ LDO9 {
+ regulator-name = "VCC_2.8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ };
+
+ LDO10 {
+ regulator-name = "VPLL_1.1V";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ LDO11 {
+ regulator-name = "CAM_AF_3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ LDO12 {
+ regulator-name = "PS_2.8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+
+ LDO13 {
+ regulator-name = "VHIC_1.2V";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ };
+
+ LDO14 {
+ regulator-name = "CAM_I_HOST_1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ LDO15 {
+ regulator-name = "CAM_S_DIG+FM33_CORE_1.2V";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ };
+
+ LDO16 {
+ regulator-name = "CAM_S_ANA_2.8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+
+ LDO17 {
+ regulator-name = "VCC_3.0V_LCD";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ };
+
+ BUCK1 {
+ regulator-name = "VINT_1.1V";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ BUCK2 {
+ regulator-name = "VG3D_1.1V";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-boot-on;
+ };
+
+ BUCK3 {
+ regulator-name = "VCC_1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ BUCK4 {
+ regulator-name = "VMEM_1.2V";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ };
+
+ EN32KHz-AP {
+ regulator-name = "32KHz AP";
+ regulator-always-on;
+ };
+
+ EN32KHz-CP {
+ regulator-name = "32KHz CP";
+ };
+
+ ENVICHG {
+ regulator-name = "VICHG";
+ };
+
+ ESAFEOUT1 {
+ regulator-name = "SAFEOUT1";
+ };
+
+ ESAFEOUT2 {
+ regulator-name = "SAFEOUT2";
+ regulator-boot-on;
+ };
+ };
+ };
+ };
--
2.34.1
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