From mboxrd@z Thu Jan 1 00:00:00 1970 From: Quentin Schulz Subject: [PATCH 07/22] dt-bindings: power: supply: add AXP20X/AXP22X AC power supply Date: Mon, 2 Jan 2017 17:37:07 +0100 Message-ID: <20170102163723.7939-8-quentin.schulz@free-electrons.com> References: <20170102163723.7939-1-quentin.schulz@free-electrons.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170102163723.7939-1-quentin.schulz@free-electrons.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, robh+dt@kernel.org, mark.rutland@arm.com, wens@csie.org, sre@kernel.org, linux@armlinux.org.uk, maxime.ripard@free-electrons.com, lee.jones@linaro.org Cc: thomas.petazzoni@free-electrons.com, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Quentin Schulz , bonbons@linux-vserver.org, icenowy@aosc.xyz, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org 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 --- .../bindings/power/supply/axp20x_ac_power.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt diff --git a/Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt b/Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt new file mode 100644 index 0000000..16d0de4 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt @@ -0,0 +1,28 @@ +AXP20X and AXP22X PMICs' AC power supply + +Required Properties: + - compatible: One of: + "x-powers,axp202-ac-power-supply" + "x-powers,axp221-ac-power-supply" + +More Required Properties for AXP20X PMICs: + - io-channels: phandles to ACIN voltage and current ADC channels + - io-channel-names = "acin_v", "acin_i"; + +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"; + io-channels = <&axp209_adc 0>, <&axp209_adc 1>; + io-channel-names = "acin_v", "acin_i"; + }; +}; -- 2.9.3