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Add documentation for regulator modes and suspend states. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>
114 lines
3.3 KiB
Plaintext
114 lines
3.3 KiB
Plaintext
Device-Tree bindings for regulators of Active-semi ACT8945A Multi-Function Device
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Required properties:
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- compatible: "active-semi,act8945a", please refer to ../mfd/act8945a.txt.
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Optional properties:
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- active-semi,vsel-high: Indicates if the VSEL pin is set to logic-high.
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If this property is missing, assume the VSEL pin is set to logic-low.
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Optional input supply properties:
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- vp1-supply: The input supply for REG_DCDC1
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- vp2-supply: The input supply for REG_DCDC2
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- vp3-supply: The input supply for REG_DCDC3
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- inl45-supply: The input supply for REG_LDO1 and REG_LDO2
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- inl67-supply: The input supply for REG_LDO3 and REG_LDO4
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Any standard regulator properties can be used to configure the single regulator.
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regulator-initial-mode, regulator-allowed-modes and regulator-mode could be
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specified using mode values from dt-bindings/regulator/active-semi,8945a-regulator.h
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file.
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The valid names for regulators are:
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REG_DCDC1, REG_DCDC2, REG_DCDC3, REG_LDO1, REG_LDO2, REG_LDO3, REG_LDO4.
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Example:
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#include <dt-bindings/regulator/active-semi,8945a-regulator.h>
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pmic@5b {
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compatible = "active-semi,act8945a";
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reg = <0x5b>;
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active-semi,vsel-high;
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regulators {
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vdd_1v35_reg: REG_DCDC1 {
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regulator-name = "VDD_1V35";
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regulator-min-microvolt = <1350000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
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<ACT8945A_REGULATOR_MODE_LOWPOWER>;
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regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-min-microvolt=<1400000>;
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regulator-suspend-max-microvolt=<1400000>;
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regulator-changeable-in-suspend;
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regulator-mode=<ACT8945A_REGULATOR_MODE_LOWPOWER>;
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};
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};
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vdd_1v2_reg: REG_DCDC2 {
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regulator-name = "VDD_1V2";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1300000>;
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regulator-always-on;
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regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>,
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<ACT8945A_REGULATOR_MODE_LOWPOWER>;
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regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>;
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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vdd_3v3_reg: REG_DCDC3 {
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regulator-name = "VDD_3V3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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vdd_fuse_reg: REG_LDO1 {
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regulator-name = "VDD_FUSE";
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regulator-min-microvolt = <2500000>;
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regulator-max-microvolt = <2500000>;
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regulator-always-on;
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regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>,
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<ACT8945A_REGULATOR_MODE_LOWPOWER>;
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regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>;
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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vdd_3v3_lp_reg: REG_LDO2 {
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regulator-name = "VDD_3V3_LP";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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vdd_led_reg: REG_LDO3 {
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regulator-name = "VDD_LED";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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vdd_sdhc_1v8_reg: REG_LDO4 {
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regulator-name = "VDD_SDHC_1V8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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};
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};
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};
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