projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| bc407334 LD |
1 | Regulator of AMS AS3722 PMIC. |
| 2 | Name of the regulator subnode must be "regulators". | |
| 3 | ||
| 4 | Optional properties: | |
| 5 | -------------------- | |
| 6 | The input supply of regulators are the optional properties on the | |
| 7 | regulator node. The AS3722 is having 7 DCDC step-down regulators as | |
| 8 | sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these | |
| 9 | regulators are provided through following properties: | |
| 10 | vsup-sd2-supply: Input supply for SD2. | |
| 11 | vsup-sd3-supply: Input supply for SD3. | |
| 12 | vsup-sd4-supply: Input supply for SD4. | |
| 13 | vsup-sd5-supply: Input supply for SD5. | |
| 14 | vin-ldo0-supply: Input supply for LDO0. | |
| 15 | vin-ldo1-6-supply: Input supply for LDO1 and LDO6. | |
| 16 | vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7. | |
| 17 | vin-ldo3-4-supply: Input supply for LDO3 and LDO4. | |
| 18 | vin-ldo9-10-supply: Input supply for LDO9 and LDO10. | |
| 19 | vin-ldo11-supply: Input supply for LDO11. | |
| 20 | ||
| 21 | Optional nodes: | |
| 22 | -------------- | |
| 23 | - regulators : Must contain a sub-node per regulator from the list below. | |
| 24 | Each sub-node should contain the constraints and initialization | |
| 25 | information for that regulator. See regulator.txt for a | |
| 26 | description of standard properties for these sub-nodes. | |
| 27 | Additional custom properties are listed below. | |
| 28 | sd[0-6], ldo[0-7], ldo[9-11]. | |
| 29 | ||
| 30 | Optional sub-node properties: | |
| 31 | ---------------------------- | |
| 32 | ams,ext-control: External control of the rail. The option of | |
| 33 | this properties will tell which external input is | |
| 34 | controlling this rail. Valid values are 0, 1, 2 ad 3. | |
| 35 | 0: There is no external control of this rail. | |
| 36 | 1: Rail is controlled by ENABLE1 input pin. | |
| 37 | 2: Rail is controlled by ENABLE2 input pin. | |
| 38 | 3: Rail is controlled by ENABLE3 input pin. | |
| 39 | ams,enable-tracking: Enable tracking with SD1, only supported | |
| 40 | by LDO3. | |
| 41 | ||
| 42 | Example: | |
| 43 | ------- | |
| 44 | ams3722: ams3722 { | |
| 45 | compatible = "ams,as3722"; | |
| 46 | reg = <0x40>; | |
| 47 | ... | |
| 48 | ||
| 49 | regulators { | |
| 50 | vsup-sd2-supply = <...>; | |
| 51 | ... | |
| 52 | ||
| 53 | sd0 { | |
| 54 | regulator-name = "vdd_cpu"; | |
| 55 | regulator-min-microvolt = <700000>; | |
| 56 | regulator-max-microvolt = <1400000>; | |
| 57 | regulator-always-on; | |
| 58 | ams,ext-control = <2>; | |
| 59 | }; | |
| 60 | ||
| 61 | sd1 { | |
| 62 | regulator-name = "vdd_core"; | |
| 63 | regulator-min-microvolt = <700000>; | |
| 64 | regulator-max-microvolt = <1400000>; | |
| 65 | regulator-always-on; | |
| 66 | ams,ext-control = <1>; | |
| 67 | }; | |
| 68 | ||
| 69 | sd2 { | |
| 70 | regulator-name = "vddio_ddr"; | |
| 71 | regulator-min-microvolt = <1350000>; | |
| 72 | regulator-max-microvolt = <1350000>; | |
| 73 | regulator-always-on; | |
| 74 | }; | |
| 75 | ||
| 76 | sd4 { | |
| 77 | regulator-name = "avdd-hdmi-pex"; | |
| 78 | regulator-min-microvolt = <1050000>; | |
| 79 | regulator-max-microvolt = <1050000>; | |
| 80 | regulator-always-on; | |
| 81 | }; | |
| 82 | ||
| 83 | sd5 { | |
| 84 | regulator-name = "vdd-1v8"; | |
| 85 | regulator-min-microvolt = <1800000>; | |
| 86 | regulator-max-microvolt = <1800000>; | |
| 87 | regulator-always-on; | |
| 88 | }; | |
| 89 | .... | |
| 90 | }; | |
| 91 | }; |