On Mon, 20 Oct 2014, Bruno Prémont wrote: > > --- > Note: the OCV values seem to have some defaults build into the > PMIC though may need adjustment if the used battery has a different > open circuit voltage curve. > As far as understood (these values are set in vendor driver but not > mentioned in chip documentation) they represent charge percentage > for some predefined voltages. > > If prefixing these values with "x-power," is preferred the following > patch should becomes a dependency: > http://lists.infradead.org/pipermail/linux-arm-kernel/2014-June/267606.html > and users in patch 2/4, 4/4 need adjusting. > > > Documentation/devicetree/bindings/mfd/axp20x.txt | 20 + > 1 files changed, 20 insertions(+), 0 deletion(-) > > diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt > b/Documentation/devicetree/bindings/mfd/axp20x.txt > index cc9e01b..8ea681c 100644 > --- a/Documentation/devicetree/bindings/mfd/axp20x.txt > +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt > @@ -28,6 +28,20 @@ Required properties: > (range: 750-1875). Default: 1.5MHz > > Optional properties for DCDCs: > +- backup: Settings for backup/RTC battery charger > + (Voltage in µV, current in µA) > + If not present, charger will be left untouched > +- battery.ocv: OCV capacity curve points (16 data values) > +- battery.resistance: internal battery resistance in mΩ > + (defaults to 100mΩ) > +- battery.capacity: Battery capacity in mAh > + If this attribute is missing, charger will be disabled > + unless there is a battery connected. > +- battery.temp_sensor: Description of temperautre sensor, 3 values > + - driver current (20µA, 40µA, 60µA or 80µA) > + - low temperature warning level (in µV) > + - high temperature warning level (in µV) > + If missing, temperature sensor gets disabled > - x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO mode > Default: AUTO mode > > @@ -49,6 +63,12 @@ axp209: pmic@34 { > ldo3in-supply = <&axp_ipsout_reg>; > ldo5in-supply = <&axp_ipsout_reg>; > > + backup = <3000000 200>; > + battery.ocv = <0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0>; > + battery.resistance = <0>; > + battery.capacity = <2000>; > + battery.temp_sensor = <20 1000000 4000000>;
Since when do we use '.'s in property names? > regulators { > x-powers,dcdc-freq = <1500>; > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.