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dt-bindings: power: supply: add AXP20X/AXP22X AC power supply

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The X-Powers AXP20X and AXP22X PMICs have an AC entry to supply power to
the board. They have a few registers dedicated to the status of the AC
power supply.

This adds the DT binding documentation for the AC power supply for
AXP20X and AXP22X PMICs.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Quentin Schulz 2017-01-27 09:54:41 +01:00 committed by Sebastian Reichel
parent 33863c938c
commit 38fa69682f
1 changed files with 22 additions and 0 deletions
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Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt Normal file
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AXP20X and AXP22X PMICs' AC power supply
Required Properties:
- compatible: One of:
"x-powers,axp202-ac-power-supply"
"x-powers,axp221-ac-power-supply"
This node is a subnode of the axp20x PMIC.
The AXP20X can read the current current and voltage supplied by AC by
reading ADC channels from the AXP20X ADC.
The AXP22X is only able to tell if an AC power supply is present and
usable.
Example:
&axp209 {
ac_power_supply: ac-power-supply {
compatible = "x-powers,axp202-ac-power-supply";
};
};