Messages in this thread | | | Date | Thu, 5 Aug 2021 14:11:32 +0100 | From | Lee Jones <> | Subject | Re: [PATCH] mfd: axp20x: Add supplied-from property to axp288_fuel_gauge cell |
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On Sat, 17 Jul 2021, Hans de Goede wrote:
> The power-supply framework has the notion of one power-supply device > being supplied by another. A typical example of this is a charger > charging a battery. > > A tablet getting plugged in to charge (or plugged out) only results in > events seen by the axp288_charger device / MFD cell. Which means that > a change udev-event only gets send for the charger power-supply class > device, not for the battery (the axp288_fuel_gauge device). > > The axp288_fuel_gauge does have an external_power_change'd callback > which will generate a change udev-event when called. But before this > commit this never got called because the power-supply core only calls > this when a power-supply class device's supplier changes and the > supplier link from axp288_charger to axp288_fuel_gauge was missing. > > Add a "supplied-from" property to axp288_fuel_gauge cell, pointing > to the "axp288_charger" power-supply class device, so that the > axp288_fuel_gauge's external_power_change'd callback gets called on > axp288_charger state changes. > > Signed-off-by: Hans de Goede <hdegoede@redhat.com> > --- > drivers/mfd/axp20x.c | 13 +++++++++++++ > 1 file changed, 13 insertions(+)
Applied, thanks.
-- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
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