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Qualcomm SPMI arbiter/bus driver
This is bus driver for Qualcomm chips that use SPMI to communicate with PMICs.
Required properties:
- compatible: "qcom,spmi-pmic-arb"
- reg: Register block adresses and sizes for various parts of device:
1) PMIC arbiter channel mapping base (PMIC_ARB_REG_CHNLn)
2) SPMI write command (master) registers (PMIC_ARB_CORE_SW_DEC_CHANNELS)
3) SPMI read command (observer) registers (PMIC_ARB_CORE_REGISTERS_OBS)
Optional properties (if not set by parent):
- #address-cells: 0x1 - childs slave ID address
- #size-cells: 0x1
All PMICs should be placed as a child nodes of bus arbiter.
Automatic detection of childs is currently not supported.
Example:
spmi@200f000 {
compatible = "qcom,spmi-pmic-arb";
reg = <0x200f800 0x200 0x2400000 0x400000 0x2c00000 0x400000>;
#address-cells = <0x1>;
#size-cells = <0x1>;
};
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