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dt-bindings: mfd: axp20x: Introduce bindings for AXP813

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The X-Powers AXP813 is a PMIC designed to be paired with Allwinner's
A83T SoC. There is also an AXP818, which is paired with the H8 SoC.

The two models seem to be identical, apart from the external markings.

This patch introduces the basic mfd and regulator bindings for the
AXP813.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Chen-Yu Tsai 2017-07-26 16:28:25 +08:00 committed by Lee Jones
parent 7303733a6c
commit 462ae14190
1 changed files with 44 additions and 5 deletions
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49
Documentation/devicetree/bindings/mfd/axp20x.txt
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@ -9,6 +9,12 @@ axp223 (X-Powers)
axp803 (X-Powers)
axp806 (X-Powers)
axp809 (X-Powers)
axp813 (X-Powers)
The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything
other than the packaging. Pins are routed separately. As such they should
be treated as separate entities. The other half is an AC100 RTC/codec
combo chip. Please see ./ac100.txt for its bindings.
Required properties:
- compatible: should be one of:
@ -20,6 +26,7 @@ Required properties:
* "x-powers,axp803"
* "x-powers,axp806"
* "x-powers,axp809"
* "x-powers,axp813"
- reg: The I2C slave address or RSB hardware address for the AXP chip
- interrupt-parent: The parent interrupt controller
- interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
@ -29,12 +36,14 @@ Required properties:
Optional properties:
- x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz
AXP152/20X: range: 750-1875, Default: 1.5 MHz
AXP22X/80X: range: 1800-4050, Default: 3 MHz
AXP22X/8XX: range: 1800-4050, Default: 3 MHz
- x-powers,drive-vbus-en: axp221 / axp223 only boolean, set this when the
N_VBUSEN pin is used as an output pin to control an external
regulator to drive the OTG VBus, rather then as an input pin
which signals whether the board is driving OTG VBus or not.
- x-powers,drive-vbus-en: boolean, set this when the N_VBUSEN pin is
used as an output pin to control an external
regulator to drive the OTG VBus, rather then
as an input pin which signals whether the
board is driving OTG VBus or not.
(axp221 / axp223 / axp813 only)
- x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
wired for master mode. The default is slave mode.
@ -172,6 +181,36 @@ LDO_IO1 : LDO : ips-supply : GPIO 1
RTC_LDO : LDO : ips-supply : always on
SW : On/Off Switch : swin-supply
AXP813 regulators, type, and corresponding input supply names:
Regulator Type Supply Name Notes
--------- ---- ----------- -----
DCDC1 : DC-DC buck : vin1-supply
DCDC2 : DC-DC buck : vin2-supply : poly-phase capable
DCDC3 : DC-DC buck : vin3-supply : poly-phase capable
DCDC4 : DC-DC buck : vin4-supply
DCDC5 : DC-DC buck : vin5-supply : poly-phase capable
DCDC6 : DC-DC buck : vin6-supply : poly-phase capable
DCDC7 : DC-DC buck : vin7-supply
ALDO1 : LDO : aldoin-supply : shared supply
ALDO2 : LDO : aldoin-supply : shared supply
ALDO3 : LDO : aldoin-supply : shared supply
DLDO1 : LDO : dldoin-supply : shared supply
DLDO2 : LDO : dldoin-supply : shared supply
DLDO3 : LDO : dldoin-supply : shared supply
DLDO4 : LDO : dldoin-supply : shared supply
ELDO1 : LDO : eldoin-supply : shared supply
ELDO2 : LDO : eldoin-supply : shared supply
ELDO3 : LDO : eldoin-supply : shared supply
FLDO1 : LDO : fldoin-supply : shared supply
FLDO2 : LDO : fldoin-supply : shared supply
FLDO3 : LDO : fldoin-supply : shared supply
LDO_IO0 : LDO : ips-supply : GPIO 0
LDO_IO1 : LDO : ips-supply : GPIO 1
RTC_LDO : LDO : ips-supply : always on
SW : On/Off Switch : swin-supply
DRIVEVBUS : Enable output : drivevbus-supply : external regulator
Example:
axp209: pmic@34 {