Tomasz Figa | 3ff4aa9 | 2013-04-04 18:17:20 +0200 | [diff] [blame] | 1 | Maxim MAX8952 voltage regulator |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: must be equal to "maxim,max8952" |
| 5 | - reg: I2C slave address, usually 0x60 |
| 6 | - max8952,dvs-mode-microvolt: array of 4 integer values defining DVS voltages |
| 7 | in microvolts. All values must be from range <770000, 1400000> |
| 8 | - any required generic properties defined in regulator.txt |
| 9 | |
| 10 | Optional properties: |
| 11 | - max8952,vid-gpios: array of two GPIO pins used for DVS voltage selection |
| 12 | - max8952,en-gpio: GPIO used to control enable status of regulator |
| 13 | - max8952,default-mode: index of default DVS voltage, from <0, 3> range |
| 14 | - max8952,sync-freq: sync frequency, must be one of following values: |
| 15 | - 0: 26 MHz |
| 16 | - 1: 13 MHz |
| 17 | - 2: 19.2 MHz |
| 18 | Defaults to 26 MHz if not specified. |
| 19 | - max8952,ramp-speed: voltage ramp speed, must be one of following values: |
| 20 | - 0: 32mV/us |
| 21 | - 1: 16mV/us |
| 22 | - 2: 8mV/us |
| 23 | - 3: 4mV/us |
| 24 | - 4: 2mV/us |
| 25 | - 5: 1mV/us |
| 26 | - 6: 0.5mV/us |
| 27 | - 7: 0.25mV/us |
| 28 | Defaults to 32mV/us if not specified. |
| 29 | - any available generic properties defined in regulator.txt |
| 30 | |
| 31 | Example: |
| 32 | |
| 33 | vdd_arm_reg: pmic@60 { |
| 34 | compatible = "maxim,max8952"; |
| 35 | reg = <0x60>; |
| 36 | |
| 37 | /* max8952-specific properties */ |
| 38 | max8952,vid-gpios = <&gpx0 3 0>, <&gpx0 4 0>; |
| 39 | max8952,en-gpio = <&gpx0 1 0>; |
| 40 | max8952,default-mode = <0>; |
| 41 | max8952,dvs-mode-microvolt = <1250000>, <1200000>, |
| 42 | <1050000>, <950000>; |
| 43 | max8952,sync-freq = <0>; |
| 44 | max8952,ramp-speed = <0>; |
| 45 | |
| 46 | /* generic regulator properties */ |
| 47 | regulator-name = "vdd_arm"; |
| 48 | regulator-min-microvolt = <770000>; |
| 49 | regulator-max-microvolt = <1400000>; |
| 50 | regulator-always-on; |
| 51 | regulator-boot-on; |
| 52 | }; |