1 Binding for TI/National Semiconductor LP872x Driver
4 - compatible: "ti,lp8720" or "ti,lp8725"
5 - reg: I2C slave address. 0x7d = LP8720, 0x7a = LP8725
8 - ti,general-config: the value of LP872X_GENERAL_CFG register (u8)
10 bit[2]: BUCK output voltage control by external DVS pin or register
11 1 = external pin, 0 = bit7 of register 08h
12 bit[1]: sleep control by external DVS pin or register
13 1 = external pin, 0 = bit6 of register 08h
14 bit[0]: time step unit(usec). 1 = 25, 0 = 50
17 bit[7:6]: time step unit(usec). 00 = 32, 01 = 64, 10 = 128, 11 = 256
18 bit[4]: BUCK2 enable control. 1 = enable, 0 = disable
19 bit[3]: BUCK2 output voltage register address. 1 = 0Ah, 0 = 0Bh
20 bit[2]: BUCK1 output voltage control by external DVS pin or register
21 1 = register 08h, 0 = DVS
22 bit[1]: LDO sleep control. 1 = sleep mode, 0 = normal
23 bit[0]: BUCK1 enable control, 1 = enable, 0 = disable
25 For more details, please see the datasheet.
27 - ti,update-config: define it when LP872X_GENERAL_CFG register should be set
28 - ti,dvs-gpio: GPIO specifier for external DVS pin control of LP872x devices.
29 - ti,dvs-vsel: DVS selector. 0 = SEL_V1, 1 = SEL_V2.
30 - ti,dvs-state: initial DVS pin state. 0 = DVS_LOW, 1 = DVS_HIGH.
32 Sub nodes for regulator_init_data
33 LP8720 has maximum 6 nodes. (child name: ldo1 ~ 5 and buck)
34 LP8725 has maximum 9 nodes. (child name: ldo1 ~ 5, lilo1,2 and buck1,2)
35 For more details, please see the following binding document.
36 (Documentation/devicetree/bindings/regulator/regulator.txt)
39 - LP8720: http://www.ti.com/lit/ds/symlink/lp8720.pdf
40 - LP8725: http://www.ti.com/lit/ds/symlink/lp8725.pdf
45 compatible = "ti,lp8720";
48 /* external DVS pin used, timestep is 25usec */
49 ti,general-config = /bits/ 8 <0x03>;
53 * The dvs-gpio depends on the processor environment.
54 * For example, following GPIO specifier means GPIO134 in OMAP4.
56 ti,dvs-gpio = <&gpio5 6 0>;
57 ti,dvs-vsel = /bits/ 8 <1>; /* SEL_V2 */
58 ti,dvs-state = /bits/ 8 <1>; /* DVS_HIGH */
61 regulator-min-microvolt = <1200000>;
62 regulator-max-microvolt = <3300000>;
66 regulator-min-microvolt = <1200000>;
67 regulator-max-microvolt = <3300000>;
71 regulator-min-microvolt = <1200000>;
72 regulator-max-microvolt = <3300000>;
77 regulator-min-microvolt = <800000>;
78 regulator-max-microvolt = <2850000>;
83 regulator-min-microvolt = <1200000>;
84 regulator-max-microvolt = <3300000>;
88 regulator-name = "VBUCK";
89 regulator-min-microvolt = <800000>;
90 regulator-max-microvolt = <2300000>;
97 compatible = "ti,lp8725";
100 /* Enable BUCK1,2, no DVS, normal LDO mode, timestep is 256usec */
101 ti,general-config = /bits/ 8 <0xdd>;
105 regulator-min-microvolt = <1200000>;
106 regulator-max-microvolt = <3300000>;
110 regulator-min-microvolt = <1200000>;
111 regulator-max-microvolt = <3300000>;
115 regulator-min-microvolt = <1200000>;
116 regulator-max-microvolt = <3300000>;
120 regulator-min-microvolt = <1200000>;
121 regulator-max-microvolt = <3300000>;
126 regulator-min-microvolt = <1200000>;
127 regulator-max-microvolt = <3300000>;
132 regulator-name = "VAUX1";
133 regulator-min-microvolt = <800000>;
134 regulator-max-microvolt = <3300000>;
138 regulator-name = "VAUX2";
139 regulator-min-microvolt = <800000>;
140 regulator-max-microvolt = <3300000>;
144 regulator-name = "VBUCK1";
145 regulator-min-microvolt = <800000>;
146 regulator-max-microvolt = <3000000>;
147 regulator-min-microamp = <460000>;
148 regulator-max-microamp = <1370000>;
153 regulator-name = "VBUCK2";
154 regulator-min-microvolt = <800000>;
155 regulator-max-microvolt = <3000000>;
156 regulator-min-microamp = <460000>;
157 regulator-max-microamp = <1370000>;