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- Qualcomm Technologies, Inc. SMB1355 Charger Specific Bindings
- SMB1355 slave charger is paired with QTI family of standalone chargers to
- enable a high current, low profile Li+ battery charging system.
- The device provides 28V DC withstand, wide operating input range of 3.8 to
- 14.2V for standard 5V USB inputs as well as a wide variety of HVDCP Travel
- Adapters and is compatible with QTI's Quick Charge technology.
- =======================
- Required Node Structure
- =======================
- SMB1355 Charger must be described in two levels of device nodes.
- ==================================
- First Level Node - SMB1355 Charger
- ==================================
- Charger specific properties:
- - compatible
- Usage: required
- Value type: <string>
- Definition: "qcom,smb1355".
- - qcom,pmic-revid
- Usage: required
- Value type: phandle
- Definition: Should specify the phandle of SMB's revid module. This is used
- to identify the SMB subtype.
- - qcom,disable-ctm
- Usage: optional
- Value type: <empty>
- Definition: boolean flag. Usually a thermistor near usb/typeC connector is
- connected to AUX. Set this flag to indicate the thermistor
- doesn't exist.
- - qcom,parallel-mode
- Usage: optional
- Value type: <u32>
- Definition: Specifies parallel charging mode. If not specified, MID-MID
- option is selected by default.
- - qcom,stacked-batfet
- Usage: optional
- Value type: <empty>
- Definition: boolean flag. Specifies if parallel charger has stacked BATFET
- configuration.
- In stacked batfet the main and parallel charger's batfet are
- stacked one after the other and thus all the charge current
- (FCC) flows through main. In a non-stacked configuration each
- charger controls the charge current (FCC) separately.
- ================================================
- Second Level Nodes - SMB1355 Charger Peripherals
- ================================================
- Peripheral specific properties:
- - reg
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Address and size of the peripheral's register block.
- - interrupts
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Peripheral interrupt specifier.
- - interrupt-names
- Usage: required
- Value type: <stringlist>
- Definition: Interrupt names. This list must match up 1-to-1 with the
- interrupts specified in the 'interrupts' property.
- =======
- Example
- =======
- smb1355_charger: qcom,smb1355-charger {
- compatible = "qcom,smb1355";
- #address-cells = <1>;
- #size-cells = <1>;
- qcom,chgr@1000 {
- reg = <0x1000 0x100>;
- interrupts = <0x10 0x1 IRQ_TYPE_EDGE_BOTH>;
- interrupt-names = "chg-state-change";
- };
- qcom,chgr-misc@1600 {
- reg = <0x1600 0x100>;
- interrupts = <0x16 0x1 IRQ_TYPE_EDGE_BOTH>;
- interrupt-names = "wdog-bark";
- };
- };
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