diff --git a/bindings/interrupt-controller/qcom,mpm.txt b/bindings/interrupt-controller/qcom,mpm.txt new file mode 100644 index 00000000..1d5997bf --- /dev/null +++ b/bindings/interrupt-controller/qcom,mpm.txt @@ -0,0 +1,72 @@ +QTI MPM interrupt controller +MPM (MSM sleep Power Manager) is QTI's platform parent +interrupt controller. It manages subsystem wakeups and +resources during sleep. This driver marks the wakeup +interrupts in APSS such that it monitors the interrupts +when the system is asleep, wakes up the APSS when one +of these interrupts occur and replays it to the subsystem +interrupt controller after it becomes operational. + +Platform interrupt controller MPM is next in hierarchy, +followed by others. + +This defines 2 interrupt controllers to monitor the +interrupts when system is asleep: + +One to monitor the wakeup capable gic interrupts called +wakegic. + +Properties: + +- compatible: + Usage: required + Value type: + Definition: Should contain "qcom,mpm-gic" and the respective + target compatible flag from below ones. + "qcom,mpm-gic-holi" + +- interrupts: + Usage: required + Value type: + Definition: should specify the IRQ used by remote processor to + wakeup APSS. + +- interrupt-parent: + Usage: required + Value type: + Definition: Specifies the interrupt parent necessary for + hierarchical domain to operate. + +- interrupt-controller: + Usage: required + Value type: + Definition: Identifies the node as an interrupt controller. + +- reg: + Usage: required + Value type: + Definition: Specifies the base physical address to trigger an + interrupt into remote processor. + +-reg-names: + Usage: required + Value type: , + Definition: Specifies the address field names. + +- qcom,num-mpm-irqs: + Usage: optional + Value type: + Defination: Specifies the number of interrupts supported. + +Example: + +wakegic: wake-gic@7781b8 { + compatible = "qcom,mpm", "qcom,mpm-gic-holi"; + interrupts = ; + reg = <0x601d4 0x1000>, + <0xb011008 0x4>; /* MSM_APCS_GCC_BASE 4K */ + reg-names = "vmpm", "ipc"; + interrupt-controller; + interrupt-parent = <&intc>; + #interrupt-cells = <3>; +};