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synced 2025-09-08 01:08:03 -04:00
Fixed MTP to work with TWRP
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awab228
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160
Documentation/devicetree/bindings/regulator/lp872x.txt
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160
Documentation/devicetree/bindings/regulator/lp872x.txt
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Binding for TI/National Semiconductor LP872x Driver
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Required properties:
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- compatible: "ti,lp8720" or "ti,lp8725"
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- reg: I2C slave address. 0x7d = LP8720, 0x7a = LP8725
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Optional properties:
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- ti,general-config: the value of LP872X_GENERAL_CFG register (u8)
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(LP8720)
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bit[2]: BUCK output voltage control by external DVS pin or register
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1 = external pin, 0 = bit7 of register 08h
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bit[1]: sleep control by external DVS pin or register
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1 = external pin, 0 = bit6 of register 08h
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bit[0]: time step unit(usec). 1 = 25, 0 = 50
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(LP8725)
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bit[7:6]: time step unit(usec). 00 = 32, 01 = 64, 10 = 128, 11 = 256
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bit[4]: BUCK2 enable control. 1 = enable, 0 = disable
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bit[3]: BUCK2 output voltage register address. 1 = 0Ah, 0 = 0Bh
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bit[2]: BUCK1 output voltage control by external DVS pin or register
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1 = register 08h, 0 = DVS
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bit[1]: LDO sleep control. 1 = sleep mode, 0 = normal
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bit[0]: BUCK1 enable control, 1 = enable, 0 = disable
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For more details, please see the datasheet.
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- ti,update-config: define it when LP872X_GENERAL_CFG register should be set
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- ti,dvs-gpio: GPIO specifier for external DVS pin control of LP872x devices.
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- ti,dvs-vsel: DVS selector. 0 = SEL_V1, 1 = SEL_V2.
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- ti,dvs-state: initial DVS pin state. 0 = DVS_LOW, 1 = DVS_HIGH.
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Sub nodes for regulator_init_data
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LP8720 has maximum 6 nodes. (child name: ldo1 ~ 5 and buck)
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LP8725 has maximum 9 nodes. (child name: ldo1 ~ 5, lilo1,2 and buck1,2)
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For more details, please see the following binding document.
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(Documentation/devicetree/bindings/regulator/regulator.txt)
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Datasheet
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- LP8720: http://www.ti.com/lit/ds/symlink/lp8720.pdf
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- LP8725: http://www.ti.com/lit/ds/symlink/lp8725.pdf
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Example 1) LP8720
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lp8720@7d {
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compatible = "ti,lp8720";
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reg = <0x7d>;
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/* external DVS pin used, timestep is 25usec */
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ti,general-config = /bits/ 8 <0x03>;
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ti,update-config;
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/*
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* The dvs-gpio depends on the processor environment.
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* For example, following GPIO specifier means GPIO134 in OMAP4.
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*/
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ti,dvs-gpio = <&gpio5 6 0>;
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ti,dvs-vsel = /bits/ 8 <1>; /* SEL_V2 */
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ti,dvs-state = /bits/ 8 <1>; /* DVS_HIGH */
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vaf: ldo1 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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};
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vmmc: ldo2 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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};
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vcam_io: ldo3 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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};
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vcam_core: ldo4 {
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <2850000>;
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regulator-boot-on;
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};
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vcam: ldo5 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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};
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vcc: buck {
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regulator-name = "VBUCK";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <2300000>;
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};
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};
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Example 2) LP8725
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lp8725@7a {
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compatible = "ti,lp8725";
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reg = <0x7a>;
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/* Enable BUCK1,2, no DVS, normal LDO mode, timestep is 256usec */
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ti,general-config = /bits/ 8 <0xdd>;
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ti,update-config;
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vcam_io: ldo1 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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};
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vcam_core: ldo2 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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};
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vcam: ldo3 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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};
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vcmmb_io: ldo4 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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};
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vcmmb_core: ldo5 {
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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};
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vaux1: lilo1 {
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regulator-name = "VAUX1";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <3300000>;
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};
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vaux2: lilo2 {
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regulator-name = "VAUX2";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <3300000>;
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};
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vcc1: buck1 {
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regulator-name = "VBUCK1";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <3000000>;
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regulator-min-microamp = <460000>;
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regulator-max-microamp = <1370000>;
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regulator-boot-on;
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};
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vcc2: buck2 {
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regulator-name = "VBUCK2";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <3000000>;
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regulator-min-microamp = <460000>;
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regulator-max-microamp = <1370000>;
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regulator-boot-on;
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};
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};
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