[PATCH v2 1/3] ARM: dts: qcom: Add binding for the qcom coincell charger
From: Tim Bird <hidden>
Date: 2015-07-14 23:28:10
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This binding is used to configure the driver for the coincell charger found in Qualcomm PMICs. Signed-off-by: Tim Bird <redacted> --- Changes in v2: - remove 'qcom,' from example node name - Added reference to parent node pm8941@0 and binding doc for it .../bindings/power/qcom,coincell-charger.txt | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/qcom,coincell-charger.txt
diff --git a/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt b/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt
new file mode 100644
index 0000000..f0316c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt@@ -0,0 +1,50 @@ +Qualcomm Coincell Charger: + +The hardware block controls charging for a coincell or capacitor that is +used to provide power backup for certain features of the power management +IC (PMIC) + +- compatible: + Usage: required + Value type: <string> + Definition: must be: "qcom,pm8941-coincell" + +- reg: + Usage: required + Value type: <u32> + Definition: base address of the coincell charger registers + +- qcom,rset-ohms: + Usage: required + Value type: <u32> + Definition: resistance (in ohms) for current-limiting resistor + must be one of: 800, 1200, 1700, 2100 + +- qcom,vset-millivolts: + Usage: required + Value type: <u32> + Definition: voltage (in millivolts) to apply for charging + must be one of: 2500, 3000, 3100, 3200 + +- qcom,charge-enable: + Usage: optional + Value type: <u32> or <none> + Definition: definining this property, with an optional non-zero + value, enables charging + +This charger is a sub-node of one of the 8941 PMIC blocks, and is specified +as a child node in DTS of that node. See ../mfd/qcom,spmi-pmic.txt and +../mfd/qcom-pm8xxx.txt + +Examples: + + pm8941@0 { + coincell@2800 { + compatible = "qcom,pm8941-coincell"; + reg = <0x2800>; + + qcom,rset-ohms = <2100>; + qcom,vset-millivolts = <3000>; + qcom,charge-enable; + }; + };
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1.8.2.2