[PATCH v7 1/6] mfd: AXP20x: Add bindings documentation
From: mark.rutland@arm.com (Mark Rutland)
Date: 2014-06-30 09:48:54
Also in:
linux-input
On Sun, Jun 29, 2014 at 07:23:52PM +0100, Carlo Caione wrote:
quoted hunk ↗ jump to hunk
Bindings documentation for the AXP20x driver. In this file also sub-nodes are documented. Signed-off-by: Carlo Caione <redacted> Acked-by: Maxime Ripard <redacted> --- Documentation/devicetree/bindings/mfd/axp20x.txt | 93 ++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/axp20x.txtdiff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt new file mode 100644 index 0000000..cc9e01b --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt@@ -0,0 +1,93 @@ +AXP202/AXP209 device tree bindings + +The axp20x family current members :- +axp202 (X-Powers) +axp209 (X-Powers) + +Required properties: +- compatible: "x-powers,axp202" or "x-powers,axp209" +- reg: The I2C slave address for the AXP chip +- interrupt-parent: The parent interrupt controller +- interrupts: Interrupt specifiers for interrupt sources
How many, what are they?
+- interrupt-controller: axp20x has its own internal IRQs +- #interrupt-cells: Should be set to 1 +- acin-supply: The input supply for LDO1 +- vin2-supply: The input supply for DCDC2 +- vin3-supply: The input supply for DCDC3 +- ldo24in-supply: The input supply for LDO2, LDO4 +- ldo3in-supply: The input supply for LDO3 +- ldo5in-supply: The input supply for LDO5 + +- regulators: A node that houses a sub-node for each regulator. 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 x-powers,dcdc-freq +- x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz + (range: 750-1875). Default: 1.5MHz + +Optional properties for DCDCs: +- x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO mode + Default: AUTO mode
When would I want to select PWM mode, and why should this be in the DT? Thanks, Mark.