| Qualcomm Technologies, Inc. SMB5 Charger Specific Bindings |
| |
| SMB5 Charger is an efficient programmable battery charger capable of charging a |
| high-capacity lithium-ion battery over micro-USB or USB Type-C ultrafast with |
| Quick Charge 2.0, Quick Charge 3.0, and USB Power Delivery support. Wireless |
| charging features full A4WP Rezence 1.2, WPC 1.2, and PMA support. |
| |
| ======================= |
| Required Node Structure |
| ======================= |
| |
| SMB5 Charger must be described in two levels of devices nodes. |
| |
| =============================== |
| First Level Node - SMB5 Charger |
| =============================== |
| |
| Charger specific properties: |
| - compatible |
| Usage: required |
| Value type: <string> |
| Definition: "qcom,qpnp-smb5". |
| |
| - qcom,pmic-revid |
| Usage: required |
| Value type: phandle |
| Definition: Should specify the phandle of PMI's revid module. This is used to |
| identify the PMI subtype. |
| |
| - qcom,batteryless-platform |
| Usage: optional |
| Value type: <empty> |
| Definition: Boolean flag which indicates that the platform does not have a |
| battery, and therefore charging should be disabled. In |
| addition battery properties will be faked such that the device |
| assumes normal operation. |
| |
| - qcom,fcc-max-ua |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the maximum fast charge current in micro-amps. |
| If the value is not present, 1Amp is used as default. |
| |
| - qcom,fv-max-uv |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the maximum float voltage in micro-volts. |
| If the value is not present, 4.35V is used as default. |
| |
| - qcom,usb-icl-ua |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the USB input current limit in micro-amps. |
| If the value is not present, 1.5Amps is used as default. |
| |
| - qcom,usb-ocl-ua |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the OTG output current limit in micro-amps. |
| If the value is not present, 1.5Amps is used as default. |
| |
| - qcom,dc-icl-ua |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the DC input current limit in micro-amps. |
| |
| - qcom,boost-threshold-ua |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the boost current threshold in micro-amps. |
| If the value is not present, 100mA is used as default. |
| |
| - qcom,thermal-mitigation |
| Usage: optional |
| Value type: Array of <u32> |
| Definition: Array of fast charge current limit values for |
| different system thermal mitigation levels. |
| This should be a flat array that denotes the |
| maximum charge current in mA for each thermal |
| level. |
| |
| - qcom,float-option |
| Usage: optional |
| Value type: <u32> |
| Definition: Configures how the charger behaves when a float charger is |
| detected by APSD. |
| 1 - Treat as a DCP. |
| 2 - Treat as a SDP. |
| 3 - Disable charging. |
| 4 - Suspend USB input. |
| |
| - qcom,hvdcp-disable |
| Usage: optional |
| Value type: <empty> |
| Definition: Specifies if hvdcp charging is to be enabled or not. |
| If this property is not specified hvdcp will be enabled. |
| If this property is specified, hvdcp 2.0 detection will still |
| happen but the adapter won't be asked to switch to a higher |
| voltage point. |
| |
| - qcom,chg-inhibit-threshold-mv |
| Usage: optional |
| Value type: <u32> |
| Definition: Charge inhibit threshold in milli-volts. Charging will be |
| inhibited when the battery voltage is within this threshold |
| from Vfloat at charger insertion. If this is not specified |
| then charge inhibit will be disabled by default. |
| Allowed values are: 50, 100, 200, 300. |
| |
| - qcom,auto-recharge-soc |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the SOC threshold at which the charger will |
| restart charging after termination. The value specified |
| ranges from 0 - 100. The feature is enabled if this |
| property is specified with a valid SOC value. |
| |
| - qcom,auto-recharge-vbat-mv |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the battery voltage threshold at which the charger |
| will restart charging after termination. The value specified |
| is in milli-volts. |
| |
| - qcom,suspend-input-on-debug-batt |
| Usage: optional |
| Value type: <empty> |
| Definition: Boolean flag which when present enables input suspend for |
| debug battery. |
| |
| - qcom,min-freq-khz |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the minimum charger buck/boost switching frequency |
| in KHz. It overrides the min frequency defined for the charger. |
| |
| - qcom,max-freq-khz |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the maximum charger buck/boost switching frequency in |
| KHz. It overrides the max frequency defined for the charger. |
| |
| - qcom,otg-deglitch-time-ms |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies the deglitch interval for OTG detection. |
| If the value is not present, 50 msec is used as default. |
| |
| - qcom,step-charging-enable |
| Usage: optional |
| Value type: bool |
| Definition: Boolean flag which when present enables step-charging. |
| |
| - qcom,wd-bark-time-secs |
| Usage: optional |
| Value type: <u32> |
| Definition: WD bark-timeout in seconds. The possible values are |
| 16, 32, 64, 128. If not defined it defaults to 64. |
| |
| - qcom,sw-jeita-enable |
| Usage: optional |
| Value type: bool |
| Definition: Boolean flag which when present enables sw compensation for |
| jeita. |
| |
| - qcom,battery-data |
| Usage: optional |
| Value type: <phandle> |
| Definition: Specifies the phandle of the node which contains the battery |
| profiles supported on the device. |
| |
| - qcom,flash-derating-soc |
| Usage: optional |
| Value type: <u32> |
| Definition: SOC threshold in percentage below which hardware will start |
| derating flash. This is only applicable to certain PMICs like |
| PMI632 which has SCHGM_FLASH peripheral. |
| |
| - qcom,flash-disable-soc |
| Usage: optional |
| Value type: <u32> |
| Definition: SOC threshold in percentage below which hardware will disable |
| flash. This is only applicable to certain PMICs like PMI632 |
| which has SCHGM_FLASH peripheral. |
| |
| - qcom,headroom-mode |
| Usage: optional |
| Value type: <u32> |
| Definition: Specifies flash hardware headroom management policy. The |
| possible values are: |
| <0>: Fixed mode, constant 5V at flash input. |
| <1>: Adaptive mode allows charger output voltage to be |
| dynamically controlled by the flash module based on the |
| required flash headroom. |
| This is only applicable to certain PMICs like PMI632 which |
| has SCHGM_FLASH peripheral. |
| |
| - qcom,chg-vadc |
| Usage: optional |
| Value type: <phandle> |
| Definition: Phandle for the VADC node, it is used to obtain USBIN_V |
| and USBIN_I readings on PMIC632 based platform. |
| |
| ============================================= |
| Second Level Nodes - SMB5 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 |
| ======= |
| |
| pmi8998_charger: qcom,qpnp-smb5 { |
| compatible = "qcom,qpnp-smb5"; |
| #address-cells = <1>; |
| #size-cells = <1>; |
| |
| dpdm-supply = <&qusb_phy0>; |
| |
| qcom,chgr@1000 { |
| reg = <0x1000 0x100>; |
| interrupts = <0x2 0x10 0x0 IRQ_TYPE_NONE>, |
| <0x2 0x10 0x1 IRQ_TYPE_NONE>, |
| <0x2 0x10 0x2 IRQ_TYPE_NONE>, |
| <0x2 0x10 0x3 IRQ_TYPE_NONE>, |
| <0x2 0x10 0x4 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "chg-error", |
| "chg-state-change", |
| "step-chg-state-change", |
| "step-chg-soc-update-fail", |
| "step-chg-soc-update-request"; |
| }; |
| |
| qcom,otg@1100 { |
| reg = <0x1100 0x100>; |
| interrupts = <0x2 0x11 0x0 IRQ_TYPE_NONE>, |
| <0x2 0x11 0x1 IRQ_TYPE_NONE>, |
| <0x2 0x11 0x2 IRQ_TYPE_NONE>, |
| <0x2 0x11 0x3 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "otg-fail", |
| "otg-overcurrent", |
| "otg-oc-dis-sw-sts", |
| "testmode-change-detect"; |
| }; |
| |
| qcom,bat-if@1200 { |
| reg = <0x1200 0x100>; |
| interrupts = <0x2 0x12 0x0 IRQ_TYPE_NONE>, |
| <0x2 0x12 0x1 IRQ_TYPE_NONE>, |
| <0x2 0x12 0x2 IRQ_TYPE_NONE>, |
| <0x2 0x12 0x3 IRQ_TYPE_NONE>, |
| <0x2 0x12 0x4 IRQ_TYPE_NONE>, |
| <0x2 0x12 0x5 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "bat-temp", |
| "bat-ocp", |
| "bat-ov", |
| "bat-low", |
| "bat-therm-or-id-missing", |
| "bat-terminal-missing"; |
| }; |
| |
| qcom,usb-chgpth@1300 { |
| reg = <0x1300 0x100>; |
| interrupts = <0x2 0x13 0x0 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x1 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x2 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x3 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x4 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x5 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x6 IRQ_TYPE_NONE>, |
| <0x2 0x13 0x7 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "usbin-collapse", |
| "usbin-lt-3p6v", |
| "usbin-uv", |
| "usbin-ov", |
| "usbin-plugin", |
| "usbin-src-change", |
| "usbin-icl-change", |
| "type-c-change"; |
| }; |
| |
| qcom,dc-chgpth@1400 { |
| reg = <0x1400 0x100>; |
| interrupts = <0x2 0x14 0x0 IRQ_TYPE_NONE>, |
| <0x2 0x14 0x1 IRQ_TYPE_NONE>, |
| <0x2 0x14 0x2 IRQ_TYPE_NONE>, |
| <0x2 0x14 0x3 IRQ_TYPE_NONE>, |
| <0x2 0x14 0x4 IRQ_TYPE_NONE>, |
| <0x2 0x14 0x5 IRQ_TYPE_NONE>, |
| <0x2 0x14 0x6 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "dcin-collapse", |
| "dcin-lt-3p6v", |
| "dcin-uv", |
| "dcin-ov", |
| "dcin-plugin", |
| "div2-en-dg", |
| "dcin-icl-change"; |
| }; |
| |
| qcom,chgr-misc@1600 { |
| reg = <0x1600 0x100>; |
| interrupts = <0x2 0x16 0x0 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x1 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x2 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x3 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x4 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x5 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x6 IRQ_TYPE_NONE>, |
| <0x2 0x16 0x7 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "wdog-snarl", |
| "wdog-bark", |
| "aicl-fail", |
| "aicl-done", |
| "high-duty-cycle", |
| "input-current-limiting", |
| "temperature-change", |
| "switcher-power-ok"; |
| }; |
| |
| qcom,schgm-flash@a600 { |
| reg = <0xa600 0x100>; |
| interrupts = <0x2 0xa6 0x0 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x1 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x2 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x3 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x4 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x5 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x6 IRQ_TYPE_NONE>, |
| <0x2 0xa6 0x7 IRQ_TYPE_NONE>; |
| |
| interrupt-names = "flash-en", |
| "torch-req", |
| "flash-state-change", |
| "vout-up", |
| "vout-down", |
| "ilim1-s1", |
| "ilim2-s2", |
| "vreg-ok"; |
| }; |
| }; |