projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f7c7cee CK |
1 | Cirrus Logic/Wolfson Microelectronics wm831x PMICs |
| 2 | ||
| 3 | System PMICs with a wide range of additional features. | |
| 4 | ||
| 5 | Required properties: | |
| 6 | ||
| 7 | - compatible : One of the following chip-specific strings: | |
| 8 | "wlf,wm8310" | |
| 9 | "wlf,wm8311" | |
| 10 | "wlf,wm8312" | |
| 11 | "wlf,wm8320" | |
| 12 | "wlf,wm8321" | |
| 13 | "wlf,wm8325" | |
| 14 | "wlf,wm8326" | |
| 15 | ||
| 16 | - reg : I2C slave address when connected using I2C, chip select number | |
| 17 | when using SPI. | |
| 18 | ||
| 19 | - gpio-controller : Indicates this device is a GPIO controller. | |
| 20 | - #gpio-cells : Must be 2. The first cell is the pin number and the | |
| 21 | second cell is used to specify optional parameters (currently unused). | |
| 22 | ||
| 23 | - interrupts : The interrupt line the IRQ signal for the device is | |
| 24 | connected to. | |
| 9f7c7cee CK |
25 | |
| 26 | - interrupt-controller : wm831x devices contain interrupt controllers and | |
| 27 | may provide interrupt services to other devices. | |
| 28 | - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the | |
| 29 | second cell is the flags, encoded as the trigger masks from | |
| 30 | ../interrupt-controller/interrupts.txt | |
| 31 | ||
| 32 | Optional sub-nodes: | |
| 626b6cd5 | 33 | - phys : Contains a phandle to the USB PHY. |
| 9f7c7cee CK |
34 | - regulators : Contains sub-nodes for each of the regulators supplied by |
| 35 | the device. The regulators are bound using their names listed below: | |
| 36 | ||
| 37 | dcdc1 : DCDC1 | |
| 38 | dcdc2 : DCDC2 | |
| 39 | dcdc3 : DCDC3 | |
| 40 | dcdc4 : DCDC3 | |
| 41 | isink1 : ISINK1 | |
| 42 | isink2 : ISINK2 | |
| 43 | ldo1 : LDO1 | |
| 44 | ldo2 : LDO2 | |
| 45 | ldo3 : LDO3 | |
| 46 | ldo4 : LDO4 | |
| 47 | ldo5 : LDO5 | |
| 48 | ldo7 : LDO7 | |
| 49 | ldo11 : LDO11 | |
| 50 | ||
| 51 | The bindings details of each regulator can be found in: | |
| 52 | ../regulator/regulator.txt | |
| 53 | ||
| 54 | Example: | |
| 55 | ||
| 56 | wm8310: pmic@36 { | |
| 57 | compatible = "wlf,wm8310"; | |
| 58 | reg = <0x36>; | |
| 59 | ||
| 60 | gpio-controller; | |
| 61 | #gpio-cells = <2>; | |
| 62 | ||
| 63 | interrupts = <347>; | |
| 64 | interrupt-parent = <&gic>; | |
| 65 | ||
| 66 | interrupt-controller; | |
| 67 | #interrupt-cells = <2>; | |
| 68 | ||
| 69 | regulators { | |
| 70 | dcdc1: dcdc1 { | |
| 71 | regulator-name = "DCDC1"; | |
| 72 | regulator-min-microvolt = <600000>; | |
| 73 | regulator-max-microvolt = <600000>; | |
| 74 | }; | |
| 75 | ldo1: ldo1 { | |
| 76 | regulator-name = "LDO1"; | |
| 77 | regulator-min-microvolt = <1700000>; | |
| 78 | regulator-max-microvolt = <1700000>; | |
| 79 | }; | |
| 80 | }; | |
| 81 | }; |