Document ROHM BD71828 PMIC regulator device tree bindings.
Add binding document for regulators on ROHM BD71828 PMIC
Signed-off-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx>
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.../regulator/rohm,bd71828-regulator.txt | 164 ++++++++++++++++++
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create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.txt
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+ROHM BD71828 Power Management Integrated Circuit regulator bindings
+
+Required properties:
+ - regulator-name: should be "buck1", ..., "buck7", and "ldo1", ..., "ldo7"
+
+List of regulators provided by this controller. BD71828 regulators node
+should be sub node of the BD71828 MFD node. See BD71828 MFD bindings at
+Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.txt
+Regulator nodes should be named to BUCK_<number> and LDO_<number>. The
+definition for each of these nodes is defined using the standard
+binding for regulators at
+Documentation/devicetree/bindings/regulator/regulator.txt.
+
+The valid names for BD71828 regulator nodes are:
+BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, BUCK7
+LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7
+
+Optional properties:
+- rohm,dvs-run-voltage : PMIC default "RUN" state voltage in uV.
+ See below table for bucks which support this.
+- rohm,dvs-idle-voltage : PMIC default "IDLE" state voltage in uV.
+ See below table for bucks which support this.
+- rohm,dvs-suspend-voltage : PMIC default "SUSPEND" state voltage in uV.
+ See below table for bucks which support this.
+- rohm,dvs-lpsr-voltage : PMIC default "LPSR" state voltage in uV.
+- rohm,dvs-runlvl-ctrl : buck control is done based on run-level.
+ Regulator is not individually controllable.
+ See ../mfd/rohm,bd71828-pmic.txt for how to
+ specify run-level control mechanism. Only
+ bucks 1, 2, 6 and 7 support this.
+- rohm,dvs-runlevel0-voltage : voltage for run-level 0. Microvolts.
+- rohm,dvs-runlevel1-voltage : voltage for run-level 1. Microvolts.
+- rohm,dvs-runlevel2-voltage : voltage for run-level 2. Microvolts.
+- rohm,dvs-runlevel3-voltage : voltage for run-level 3. Microvolts.
+
+- Any optional property defined in bindings/regulator/regulator.txt
+
+Supported default DVS states:
+
+buck | run | idle | suspend | lpsr
+-----------------------------------------------------------------------------
+1, 2, 6, and 7 | supported | supported | supported (*)
+----------------------------------------------------------------------------
+3, 4, and 5 | supported (**)
+----------------------------------------------------------------------------
+(*) LPSR and SUSPEND states use same voltage but both states have own enable /
+ disable settings. Voltage 0 can be specified for a state to make regulator
+ disabled on that state.
+(**) All states use same voltage but have own enable / disable settings. Voltage
+ 0 can be specified for a state to make regulator disabled on that state.
+
+Example:
+regulators {
+ buck1: BUCK1 {
+ regulator-name = "buck1";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-ramp-delay = <2500>;
+ rohm,dvs-runlvl-ctrl;
+ rohm,dvs-runlevel0-voltage = <500000>;
+ rohm,dvs-runlevel1-voltage = <506250>;
+ rohm,dvs-runlevel2-voltage = <512500>;
+ rohm,dvs-runlevel3-voltage = <518750>;
+ regulator-boot-on;
+ };
+ buck2: BUCK2 {
+ regulator-name = "buck2";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-ramp-delay = <2500>;
+ rohm,dvs-runlvl-ctrl;
+ rohm,dvs-runlevel0-voltage = <500000>;
+ rohm,dvs-runlevel1-voltage = <506250>;
+ rohm,dvs-runlevel2-voltage = <512500>;
+ rohm,dvs-runlevel3-voltage = <518750>;
+ regulator-boot-on;
+ };
+ buck3: BUCK3 {
+ regulator-name = "buck3";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-boot-on;
+ };
+ buck4: BUCK4 {
+ regulator-name = "buck4";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ };
+ buck5: BUCK5 {
+ regulator-name = "buck5";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ buck6: BUCK6 {
+ regulator-name = "buck6";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-ramp-delay = <2500>;
+ rohm,dvs-runlvl-ctrl;
+ rohm,dvs-runlevel0-voltage = <500000>;
+ rohm,dvs-runlevel1-voltage = <506250>;
+ rohm,dvs-runlevel2-voltage = <512500>;
+ rohm,dvs-runlevel3-voltage = <518750>;
+ regulator-boot-on;
+ };
+ buck7: BUCK7 {
+ regulator-name = "buck7";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-ramp-delay = <2500>;
+ rohm,dvs-runlvl-ctrl;
+ rohm,dvs-runlevel0-voltage = <500000>;
+ rohm,dvs-runlevel1-voltage = <506250>;
+ rohm,dvs-runlevel2-voltage = <512500>;
+ rohm,dvs-runlevel3-voltage = <518750>;
+ regulator-boot-on;
+ };
+ ldo1: LDO1 {
+ regulator-name = "ldo1";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo2: LDO2 {
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo3: LDO3 {
+ regulator-name = "ldo3";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo4: LDO4 {
+ regulator-name = "ldo4";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo5: LDO5 {
+ regulator-name = "ldo5";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo6: LDO6 {
+ regulator-name = "ldo6";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ };
+ ldo7_reg: LDO7 {
+ regulator-name = "ldo7";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+};
+
+
--
2.21.0
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
