Signed-off-by: Josh Cartwright <joshc@xxxxxxxxxxxxxx> --- .../bindings/spmi/qcom,spmi-pmic-arb.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt new file mode 100644 index 0000000..9e50cb3 --- /dev/null +++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt @@ -0,0 +1,46 @@ +Qualcomm SPMI Controller (PMIC Arbiter) + +The SPMI PMIC Arbiter is found on the Snapdragon 800 Series. It is an SPMI +controller with wrapping arbitration logic to allow for multiple on-chip +devices to control a single SPMI master. + +The PMIC Arbiter can also act as an interrupt controller, providing interrupts +to slave devices. + +See spmi.txt for the generic SPMI controller binding requirements for child +nodes. + +Required properties: +- compatible : should be "qcom,spmi-pmic-arb". +- reg-names : should be "core", "intr", "cnfg" +- reg : register specifiers, must contain 3 entries, in the follow order: + core registers, interrupt controller registers, configuration registers +- #address-cells : must be set to 2 +- #size-cells : must be set to 0 +- qcom,ee : indicates the active Execution Environment identifier (0-5) +- qcom,channel : which of the PMIC Arb provided channels to use for accesses (0-5) +- interrupt-controller : indicates the PMIC arbiter is an interrupt controller +- #interrupt-cells = <4>: interrupts are specified as a 4-tuple: + cell 1: slave ID for the requested interrupt (0-15) + cell 2: peripheral ID for requested interrupt (0-255) + cell 3: the requested peripheral interrupt (0-7) + cell 4: interrupt flags indicating level-sense information, as defined in + dt-bindings/interrupt-controller/irq.h + +Example: + + spmi { + compatible = "qcom,spmi-pmic-arb"; + reg-names = "core", "intr", "cnfg"; + reg = <0xfc4cf000 0x1000>, + <0Xfc4cb000 0x1000>, + <0Xfc4ca000 0x1000>; + qcom,ee = <0>; + qcom,channel = <0>; + + #address-cells = <2>; + #size-cells = <0>; + + interrupt-controller; + #interrupt-cells = <4>; + }; -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html