On Mon, 26 Nov 2018, Priit Laes wrote: > From: Olliver Schinagl <oliver@xxxxxxxxxxx> > > The AXP209 supports ramping up voltages on several regulators such as > DCDC2 and LDO3, therefore we can use the standard 'regulator-ramp-delay' > property for those 2 regulators. > > Note that the voltage ramp only works when the regulator is already > enabled. E.g. when going from say 0.7 V to 3.6 V. > > When turning on the regulator, no voltage ramp is performed in hardware. > > What this means, is that if the bootloader brings up the voltage at 0.7 V, > the ramp delay property is properly applied. If however, the bootloader > leaves the power off, no ramp delay is applied when the power is > enabled by the regulator framework. > > Signed-off-by: Olliver Schinagl <oliver@xxxxxxxxxxx> > Signed-off-by: Priit Laes <plaes@xxxxxxxxx> > --- > Documentation/devicetree/bindings/mfd/axp20x.txt | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt > index 188f037..5542212 100644 > --- a/Documentation/devicetree/bindings/mfd/axp20x.txt > +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt > @@ -32,6 +32,11 @@ Required properties: > - interrupt-controller: The PMIC has its own internal IRQs > - #interrupt-cells: Should be set to 1 > > +Supported common regulator properties, see regulator.txt for more information: regulator.txt should be a relative path. ../regulator/regulator.txt in this case. Once changed, please apply my: For my own reference: Acked-for-MFD-by: Lee Jones <lee.jones@xxxxxxxxxx> -- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
