On Thu, Jul 16, 2015 at 6:55 PM, Tim Bird <tim.bird@xxxxxxxxxxxxxx> wrote:
> This binding is used to configure the driver for the coincell charger
> found in Qualcomm PMICs.
>
> Signed-off-by: Tim Bird <tim.bird@xxxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> ---
>
> Changes in v3:
> - change charge-enable property to charger-disable
> 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 | 48 ++++++++++++++++++++++
> 1 file changed, 48 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..0e6d875
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt
> @@ -0,0 +1,48 @@
> +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,charger-disable:
> + Usage: optional
> + Value type: <boolean>
> + Definition: definining this property disables 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
> +
> +Example:
> +
> + pm8941@0 {
> + coincell@2800 {
> + compatible = "qcom,pm8941-coincell";
> + reg = <0x2800>;
> +
> + qcom,rset-ohms = <2100>;
> + qcom,vset-millivolts = <3000>;
> + };
> + };
> --
> 1.8.2.2
>
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