From mboxrd@z Thu Jan 1 00:00:00 1970 From: carlo@caione.org (Carlo Caione) Date: Sat, 8 Feb 2014 17:03:48 +0100 Subject: [PATCH 3/3] mfd: axp20x: Add bindings documentation In-Reply-To: <1391875428-6281-1-git-send-email-carlo@caione.org> References: <1391875428-6281-1-git-send-email-carlo@caione.org> Message-ID: <1391875428-6281-4-git-send-email-carlo@caione.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Bindings documentation for the axp20x driver. In this file also two sub-nodes (PEK and regulators) are documented. Signed-off-by: Carlo Caione --- Documentation/devicetree/bindings/mfd/axp20x.txt | 87 ++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/axp20x.txt diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt new file mode 100644 index 0000000..ccea6b8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt @@ -0,0 +1,87 @@ +* axp20x device tree bindings + +The axp20x family current members :- +axp202 (x-powers) +axp209 (x-powers) + +Required properties: +- compatible : Should be "x-powers,axp20x" (for axp202 and axp209) +- interrupt-controller : axp20x has its own internal IRQs +- #interrupt-cells : should be set to 1 +- interrupt-parent : The parent interrupt controller +- interrupts : Specifies the list of interrupt lines which are handled by + the device in the parent controller's notation +- reg : Specifies base physical address and size of the registers + +Sub-nodes +* regulators : Contain the regulator nodes. The regulators are bound using + their name as listed here: dcdc2, dcdc3, ldo1, ldo2, ldo3, + ldo4, ldo5. + The bindings details of individual regulator device can be found in: + Documentation/devicetree/bindings/regulator/regulator.txt with the + exception of: + + - dcdc-freq : defines the work frequency of DC-DC where + F=(1+dcdc-freq*5%)*1.5MHz + +* axp20x-pek : Power Enable Key + - compatible : should be "x-powers,axp20x-pek" + - interrupts : two interrupt numbers with order defined by interrupt-names + (one irq number for rising transition of the power key, the + other one for falling transition) + - interrupt-names : should be "PEK_DBR" and "PEK_DBF" + +Example: + +axp { + compatible = "x-powers,axp20x"; + interrupt-controller; + #interrupt-cells = <1>; + + axp20x-pek { + compatible = "x-powers,axp20x-pek"; + interrupts = <33>, <34>; + interrupt-names = "PEK_DBR", "PEK_DBF"; + }; + + regulators { + dcdc-freq = "8"; + + axp_dcdc2: dcdc2 { + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <2275000>; + dcdc-workmode = <0>; + }; + + axp_dcdc3: dcdc3 { + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <3500000>; + dcdc-workmode = <0>; + }; + + axp_ldo1: ldo1 { + regulator-min-microvolt = <1300000>; + regulator-max-microvolt = <1300000>; + }; + + axp_ldo2: ldo2 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + }; + + axp_ldo3: ldo3 { + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <3500000>; + }; + + axp_ldo4: ldo4 { + regulator-min-microvolt = <1250000>; + regulator-max-microvolt = <3300000>; + }; + + axp_ldo5: ldo5 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + }; + }; +}; -- 1.8.5.3