| Qualcomm SPMI PMICs multi-function device bindings |
| |
| The Qualcomm SPMI series presently includes PM8941, PM8841 and PMA8084 |
| PMICs. These PMICs use a QPNP scheme through SPMI interface. |
| QPNP is effectively a partitioning scheme for dividing the SPMI extended |
| register space up into logical pieces, and set of fixed register |
| locations/definitions within these regions, with some of these regions |
| specifically used for interrupt handling. |
| |
| The QPNP PMICs are used with the Qualcomm Snapdragon series SoCs, and are |
| interfaced to the chip via the SPMI (System Power Management Interface) bus. |
| Support for multiple independent functions are implemented by splitting the |
| 16-bit SPMI slave address space into 256 smaller fixed-size regions, 256 bytes |
| each. A function can consume one or more of these fixed-size register regions. |
| |
| Required properties: |
| - compatible: Should contain one of: |
| "qcom,pm8941", |
| "qcom,pm8841", |
| "qcom,pma8084", |
| "qcom,pm8019", |
| "qcom,pm8226", |
| "qcom,pm8110", |
| "qcom,pma8084", |
| "qcom,pmi8962", |
| "qcom,pmd9635", |
| "qcom,pm8994", |
| "qcom,pmi8994", |
| "qcom,pm8916", |
| "qcom,pm8004", |
| "qcom,pm8909", |
| or generalized "qcom,spmi-pmic". |
| - reg: Specifies the SPMI USID slave address for this device. |
| For more information see: |
| Documentation/devicetree/bindings/spmi/spmi.txt |
| |
| Required properties for peripheral child nodes: |
| - compatible: Should contain "qcom,xxx", where "xxx" is a peripheral name. |
| |
| Optional properties for peripheral child nodes: |
| - interrupts: Interrupts are specified as a 4-tuple. For more information |
| see: |
| Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt |
| - interrupt-names: Corresponding interrupt name to the interrupts property |
| |
| Each child node of SPMI slave id represents a function of the PMIC. In the |
| example below the rtc device node represents a peripheral of pm8941 |
| SID = 0. The regulator device node represents a peripheral of pm8941 SID = 1. |
| |
| Example: |
| |
| spmi { |
| compatible = "qcom,spmi-pmic-arb"; |
| |
| pm8941@0 { |
| compatible = "qcom,pm8941", "qcom,spmi-pmic"; |
| reg = <0x0 SPMI_USID>; |
| |
| rtc { |
| compatible = "qcom,rtc"; |
| interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>; |
| interrupt-names = "alarm"; |
| }; |
| }; |
| |
| pm8941@1 { |
| compatible = "qcom,pm8941", "qcom,spmi-pmic"; |
| reg = <0x1 SPMI_USID>; |
| |
| regulator { |
| compatible = "qcom,regulator"; |
| regulator-name = "8941_boost"; |
| }; |
| }; |
| }; |
