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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt')
-rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt deleted file mode 100644 index 159a423e5586..000000000000 --- a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt +++ /dev/null @@ -1,78 +0,0 @@ -PDC interrupt controller - -Qualcomm Technologies Inc. SoCs based on the RPM Hardened architecture have a -Power Domain Controller (PDC) that is on always-on domain. In addition to -providing power control for the power domains, the hardware also has an -interrupt controller that can be used to help detect edge low interrupts as -well detect interrupts when the GIC is non-operational. - -GIC is parent interrupt controller at the highest level. Platform interrupt -controller PDC is next in hierarchy, followed by others. Drivers requiring -wakeup capabilities of their device interrupts routed through the PDC, must -specify PDC as their interrupt controller and request the PDC port associated -with the GIC interrupt. See example below. - -Properties: - -- compatible: - Usage: required - Value type: <string> - Definition: Should contain "qcom,<soc>-pdc" and "qcom,pdc" - - "qcom,sc7180-pdc": For SC7180 - - "qcom,sc7280-pdc": For SC7280 - - "qcom,sdm845-pdc": For SDM845 - - "qcom,sm6350-pdc": For SM6350 - - "qcom,sm8150-pdc": For SM8150 - - "qcom,sm8250-pdc": For SM8250 - - "qcom,sm8350-pdc": For SM8350 - -- reg: - Usage: required - Value type: <prop-encoded-array> - Definition: Specifies the base physical address for PDC hardware. - -- interrupt-cells: - Usage: required - Value type: <u32> - Definition: Specifies the number of cells needed to encode an interrupt - source. - Must be 2. - The first element of the tuple is the PDC pin for the - interrupt. - The second element is the trigger type. - -- interrupt-controller: - Usage: required - Value type: <bool> - Definition: Identifies the node as an interrupt controller. - -- qcom,pdc-ranges: - Usage: required - Value type: <u32 array> - Definition: Specifies the PDC pin offset and the number of PDC ports. - The tuples indicates the valid mapping of valid PDC ports - and their hwirq mapping. - The first element of the tuple is the starting PDC port. - The second element is the GIC hwirq number for the PDC port. - The third element is the number of interrupts in sequence. - -Example: - - pdc: interrupt-controller@b220000 { - compatible = "qcom,sdm845-pdc"; - reg = <0xb220000 0x30000>; - qcom,pdc-ranges = <0 512 94>, <94 641 15>, <115 662 7>; - #interrupt-cells = <2>; - interrupt-parent = <&intc>; - interrupt-controller; - }; - -DT binding of a device that wants to use the GIC SPI 514 as a wakeup -interrupt, must do - - - wake-device { - interrupts-extended = <&pdc 2 IRQ_TYPE_LEVEL_HIGH>; - }; - -In this case interrupt 514 would be mapped to port 2 on the PDC as defined by -the qcom,pdc-ranges property. |