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

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

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Wadim Egorov 2016-08-29 13:08:00 +02:00 committed by Lee Jones
parent 1137529353
commit 71557e5058
1 changed files with 34 additions and 3 deletions
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37
Documentation/devicetree/bindings/mfd/rk808.txt
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@ -1,7 +1,11 @@
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