| * ROHM BD9571MWV/BD9574MWF Power Management Integrated Circuit (PMIC) bindings |
| |
| Required properties: |
| - compatible : Should be "rohm,bd9571mwv" or "rohm,bd9574mwf". |
| - reg : I2C slave address. |
| - interrupts : The interrupt line the device is connected to. |
| - interrupt-controller : Marks the device node as an interrupt controller. |
| - #interrupt-cells : The number of cells to describe an IRQ, should be 2. |
| The first cell is the IRQ number. |
| The second cell is the flags, encoded as trigger |
| masks from ../interrupt-controller/interrupts.txt. |
| - gpio-controller : Marks the device node as a GPIO Controller. |
| - #gpio-cells : Should be two. The first cell is the pin number and |
| the second cell is used to specify flags. |
| See ../gpio/gpio.txt for more information. |
| - regulators: : List of child nodes that specify the regulator |
| initialization data. Child nodes must be named |
| after their hardware counterparts: |
| - vd09 |
| - vd18 |
| - vd25 |
| - vd33 |
| - dvfs |
| Each child node is defined using the standard |
| binding for regulators. |
| |
| Optional properties: |
| - rohm,ddr-backup-power : Value to use for DDR-Backup Power (default 0). |
| This is a bitmask that specifies which DDR power |
| rails need to be kept powered when backup mode is |
| entered, for system suspend: |
| - bit 0: DDR0 |
| - bit 1: DDR1 |
| - bit 2: DDR0C |
| - bit 3: DDR1C |
| These bits match the KEEPON_DDR* bits in the |
| documentation for the "BKUP Mode Cnt" register. |
| - rohm,rstbmode-level: The RSTB signal is configured for level mode, to |
| accommodate a toggle power switch (the RSTBMODE pin is |
| strapped low). |
| - rohm,rstbmode-pulse: The RSTB signal is configured for pulse mode, to |
| accommodate a momentary power switch (the RSTBMODE pin |
| is strapped high). |
| The two properties above are mutually exclusive. |
| |
| Example: |
| |
| pmic: pmic@30 { |
| compatible = "rohm,bd9571mwv"; |
| reg = <0x30>; |
| interrupt-parent = <&gpio2>; |
| interrupts = <0 IRQ_TYPE_LEVEL_LOW>; |
| interrupt-controller; |
| #interrupt-cells = <2>; |
| gpio-controller; |
| #gpio-cells = <2>; |
| rohm,ddr-backup-power = <0xf>; |
| rohm,rstbmode-pulse; |
| |
| regulators { |
| dvfs: dvfs { |
| regulator-name = "dvfs"; |
| regulator-min-microvolt = <750000>; |
| regulator-max-microvolt = <1030000>; |
| regulator-boot-on; |
| regulator-always-on; |
| }; |
| }; |
| }; |