77 lines
2.2 KiB
Text
77 lines
2.2 KiB
Text
Qualcomm PM8941 PMIC Power Key
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PROPERTIES
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be one of:
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"qcom,pm8941-pwrkey"
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"qcom,pm8941-resin"
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"qcom,pmk8350-pwrkey"
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"qcom,pmk8350-resin"
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- reg:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: Specifies the SPMI base address for the PON (power-on)
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peripheral. For PMICs that have PON peripheral (GEN3) split
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into PON_HLOS and PON_PBS (e.g. PMK8350), this can hold
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addresses of both PON_HLOS and PON_PBS peripherals.
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In that case, the PON_PBS address needs to be specified
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to facilitate software debouncing on some PMICs.
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- reg-names:
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Usage: optional
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Value type: <stringlist>
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Definition: For PON GEN1 and GEN2, it should be "pon". For PON GEN3, it
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should include "pon_hlos" and optionally "pon_pbs".
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- interrupts:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: key change interrupt; The format of the specifier is
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defined by the binding document describing the node's
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interrupt parent.
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- debounce:
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Usage: optional
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Value type: <u32>
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Definition: time in microseconds that key must be pressed or released
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for state change interrupt to trigger. Note that this
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property isn't meaningful for PMK8350 or other PON GEN3
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PMICs.
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- bias-pull-up:
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Usage: optional
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Value type: <empty>
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Definition: presence of this property indicates that the KPDPWR_N pin
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should be configured for pull up. Note that this property
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isn't meaningful for PMK8350 or other PON GEN3 PMICs.
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- linux,code:
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Usage: optional
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Value type: <u32>
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Definition: The input key-code associated with the power key.
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Use the linux event codes defined in
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include/dt-bindings/input/linux-event-codes.h
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When property is omitted KEY_POWER is assumed.
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EXAMPLE
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pwrkey@800 {
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compatible = "qcom,pm8941-pwrkey";
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reg = <0x800>;
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interrupts = <0x0 0x8 0 IRQ_TYPE_EDGE_BOTH>;
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debounce = <15625>;
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bias-pull-up;
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linux,code = <KEY_POWER>;
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};
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pwrkey@1300 {
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compatible = "qcom,pmk8350-pwrkey";
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reg = <0x1300>, <0x800>;
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reg-names = "pon_hlos", "pon_pbs";
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interrupts = <0x0 0x13 0x7 IRQ_TYPE_EDGE_BOTH>;
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linux,code = <KEY_POWER>;
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};
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