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Commit 71557e50 authored by Wadim Egorov's avatar Wadim Egorov Committed by Lee Jones
Browse files

mfd: dt-bindings: Add RK818 device tree bindings document 



Add device tree bindings documentation for Rockchip's RK818 PMIC.

Signed-off-by: default avatarWadim Egorov <w.egorov@phytec.de>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 11375293

Documentation/devicetree/bindings/mfd/rk808.txt

+34 −3
Original line number Diff line number Diff line 
RK808 Power Management Integrated Circuit

RK8XX Power Management Integrated Circuit



The rk8xx family current members:

rk808

rk818



Required properties:

- compatible: "rockchip,rk808"

- compatible: "rockchip,rk808", "rockchip,rk818"

- reg: I2C slave address

- interrupt-parent: The parent interrupt controller.

- interrupts: the interrupt outputs of the controller.
@@ -13,6 +17,8 @@ Optional properties: 
  default output clock name

- rockchip,system-power-controller: Telling whether or not this pmic is controlling

  the system power.



Optional RK808 properties:

- vcc1-supply:  The input supply for DCDC_REG1

- vcc2-supply:  The input supply for DCDC_REG2

- vcc3-supply:  The input supply for DCDC_REG3
@@ -29,7 +35,20 @@ Optional properties: 
  the gpio controller. If DVS GPIOs aren't present, voltage changes will happen

  very quickly with no slow ramp time.



Regulators: All the regulators of RK808 to be instantiated shall be

Optional RK818 properties:

- vcc1-supply:  The input supply for DCDC_REG1

- vcc2-supply:  The input supply for DCDC_REG2

- vcc3-supply:  The input supply for DCDC_REG3

- vcc4-supply:  The input supply for DCDC_REG4

- boost-supply: The input supply for DCDC_BOOST

- vcc6-supply:  The input supply for LDO_REG1 and LDO_REG2

- vcc7-supply:  The input supply for LDO_REG3, LDO_REG5 and LDO_REG7

- vcc8-supply:  The input supply for LDO_REG4, LDO_REG6 and LDO_REG8

- vcc9-supply:  The input supply for LDO_REG9 and SWITCH_REG

- h_5v-supply:  The input supply for HDMI_SWITCH

- usb-supply:   The input supply for OTG_SWITCH



Regulators: All the regulators of RK8XX to be instantiated shall be

listed in a child node named 'regulators'. Each regulator is represented

by a child node of the 'regulators' node.
@@ -48,6 +67,18 @@ number as described in RK808 datasheet. 
	- SWITCH_REGn

		- valid values for n are 1 to 2



Following regulators of the RK818 PMIC block are supported. Note that

the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO

number as described in RK818 datasheet.



	- DCDC_REGn

		- valid values for n are 1 to 4.

	- LDO_REGn

		- valid values for n are 1 to 9.

	- SWITCH_REG

	- HDMI_SWITCH

	- OTG_SWITCH



Standard regulator bindings are used inside regulator subnodes. Check

  Documentation/devicetree/bindings/regulator/regulator.txt

for more details