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