1*4882a593Smuzhiyun* ROHM BD9571MWV Power Management Integrated Circuit (PMIC) bindings 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun - compatible : Should be "rohm,bd9571mwv". 5*4882a593Smuzhiyun - reg : I2C slave address. 6*4882a593Smuzhiyun - interrupts : The interrupt line the device is connected to. 7*4882a593Smuzhiyun - interrupt-controller : Marks the device node as an interrupt controller. 8*4882a593Smuzhiyun - #interrupt-cells : The number of cells to describe an IRQ, should be 2. 9*4882a593Smuzhiyun The first cell is the IRQ number. 10*4882a593Smuzhiyun The second cell is the flags, encoded as trigger 11*4882a593Smuzhiyun masks from ../interrupt-controller/interrupts.txt. 12*4882a593Smuzhiyun - gpio-controller : Marks the device node as a GPIO Controller. 13*4882a593Smuzhiyun - #gpio-cells : Should be two. The first cell is the pin number and 14*4882a593Smuzhiyun the second cell is used to specify flags. 15*4882a593Smuzhiyun See ../gpio/gpio.txt for more information. 16*4882a593Smuzhiyun - regulators: : List of child nodes that specify the regulator 17*4882a593Smuzhiyun initialization data. Child nodes must be named 18*4882a593Smuzhiyun after their hardware counterparts: 19*4882a593Smuzhiyun - vd09 20*4882a593Smuzhiyun - vd18 21*4882a593Smuzhiyun - vd25 22*4882a593Smuzhiyun - vd33 23*4882a593Smuzhiyun - dvfs 24*4882a593Smuzhiyun Each child node is defined using the standard 25*4882a593Smuzhiyun binding for regulators. 26*4882a593Smuzhiyun 27*4882a593SmuzhiyunOptional properties: 28*4882a593Smuzhiyun - rohm,ddr-backup-power : Value to use for DDR-Backup Power (default 0). 29*4882a593Smuzhiyun This is a bitmask that specifies which DDR power 30*4882a593Smuzhiyun rails need to be kept powered when backup mode is 31*4882a593Smuzhiyun entered, for system suspend: 32*4882a593Smuzhiyun - bit 0: DDR0 33*4882a593Smuzhiyun - bit 1: DDR1 34*4882a593Smuzhiyun - bit 2: DDR0C 35*4882a593Smuzhiyun - bit 3: DDR1C 36*4882a593Smuzhiyun These bits match the KEEPON_DDR* bits in the 37*4882a593Smuzhiyun documentation for the "BKUP Mode Cnt" register. 38*4882a593Smuzhiyun - rohm,rstbmode-level: The RSTB signal is configured for level mode, to 39*4882a593Smuzhiyun accommodate a toggle power switch (the RSTBMODE pin is 40*4882a593Smuzhiyun strapped low). 41*4882a593Smuzhiyun - rohm,rstbmode-pulse: The RSTB signal is configured for pulse mode, to 42*4882a593Smuzhiyun accommodate a momentary power switch (the RSTBMODE pin 43*4882a593Smuzhiyun is strapped high). 44*4882a593Smuzhiyun The two properties above are mutually exclusive. 45*4882a593Smuzhiyun 46*4882a593SmuzhiyunExample: 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun pmic: pmic@30 { 49*4882a593Smuzhiyun compatible = "rohm,bd9571mwv"; 50*4882a593Smuzhiyun reg = <0x30>; 51*4882a593Smuzhiyun interrupt-parent = <&gpio2>; 52*4882a593Smuzhiyun interrupts = <0 IRQ_TYPE_LEVEL_LOW>; 53*4882a593Smuzhiyun interrupt-controller; 54*4882a593Smuzhiyun #interrupt-cells = <2>; 55*4882a593Smuzhiyun gpio-controller; 56*4882a593Smuzhiyun #gpio-cells = <2>; 57*4882a593Smuzhiyun rohm,ddr-backup-power = <0xf>; 58*4882a593Smuzhiyun rohm,rstbmode-pulse; 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun regulators { 61*4882a593Smuzhiyun dvfs: dvfs { 62*4882a593Smuzhiyun regulator-name = "dvfs"; 63*4882a593Smuzhiyun regulator-min-microvolt = <750000>; 64*4882a593Smuzhiyun regulator-max-microvolt = <1030000>; 65*4882a593Smuzhiyun regulator-boot-on; 66*4882a593Smuzhiyun regulator-always-on; 67*4882a593Smuzhiyun }; 68*4882a593Smuzhiyun }; 69*4882a593Smuzhiyun }; 70