| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Spreadtrum SC2731 Voltage regulators |
| 2 | |
| 3 | The SC2731 integrates low-voltage and low quiescent current DCDC/LDO. |
| 4 | 14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have |
| 5 | their own bypass (power-down) control signals. External tantalum or MLCC |
| 6 | ceramic capacitors are recommended to use with these LDOs. |
| 7 | |
| 8 | Required properties: |
| 9 | - compatible: should be "sprd,sc27xx-regulator". |
| 10 | |
| 11 | List of regulators provided by this controller. It is named according to |
| 12 | its regulator type, BUCK_<name> and LDO_<name>. The definition for each |
| 13 | of these nodes is defined using the standard binding for regulators at |
| 14 | Documentation/devicetree/bindings/regulator/regulator.txt. |
| 15 | |
| 16 | The valid names for regulators are: |
| 17 | BUCK: |
| 18 | BUCK_CPU0, BUCK_CPU1, BUCK_RF |
| 19 | LDO: |
| 20 | LDO_CAMA0, LDO_CAMA1, LDO_CAMMOT, LDO_VLDO, LDO_EMMCCORE, LDO_SDCORE, |
| 21 | LDO_SDIO, LDO_WIFIPA, LDO_USB33, LDO_CAMD0, LDO_CAMD1, LDO_CON, |
| 22 | LDO_CAMIO, LDO_SRAM |
| 23 | |
| 24 | Example: |
| 25 | regulators { |
| 26 | compatible = "sprd,sc27xx-regulator"; |
| 27 | |
| 28 | vddarm0: BUCK_CPU0 { |
| 29 | regulator-name = "vddarm0"; |
| 30 | regulator-min-microvolt = <400000>; |
| 31 | regulator-max-microvolt = <1996875>; |
| 32 | regulator-ramp-delay = <25000>; |
| 33 | regulator-always-on; |
| 34 | }; |
| 35 | |
| 36 | vddcama0: LDO_CAMA0 { |
| 37 | regulator-name = "vddcama0"; |
| 38 | regulator-min-microvolt = <1200000>; |
| 39 | regulator-max-microvolt = <3750000>; |
| 40 | regulator-enable-ramp-delay = <100>; |
| 41 | }; |
| 42 | ... |
| 43 | }; |