hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
Documentation/devicetree/bindings/mfd/rk808.txt
View File

@ -1,7 +1,11 @@
RK808 Power Management Integrated Circuit RK8XX Power Management Integrated Circuit
The rk8xx family current members:
rk808
rk818
Required properties: Required properties:
- compatible: "rockchip,rk808" - compatible: "rockchip,rk808", "rockchip,rk818"
- reg: I2C slave address - reg: I2C slave address
- interrupt-parent: The parent interrupt controller. - interrupt-parent: The parent interrupt controller.
- interrupts: the interrupt outputs of the controller. - interrupts: the interrupt outputs of the controller.
@ -13,6 +17,8 @@ Optional properties:
default output clock name default output clock name
- rockchip,system-power-controller: Telling whether or not this pmic is controlling - rockchip,system-power-controller: Telling whether or not this pmic is controlling
the system power. the system power.
Optional RK808 properties:
- vcc1-supply: The input supply for DCDC_REG1 - vcc1-supply: The input supply for DCDC_REG1
- vcc2-supply: The input supply for DCDC_REG2 - vcc2-supply: The input supply for DCDC_REG2
- vcc3-supply: The input supply for DCDC_REG3 - 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 the gpio controller. If DVS GPIOs aren't present, voltage changes will happen
very quickly with no slow ramp time. 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 listed in a child node named 'regulators'. Each regulator is represented
by a child node of the 'regulators' node. by a child node of the 'regulators' node.
@ -48,6 +67,18 @@ number as described in RK808 datasheet.
- SWITCH_REGn - SWITCH_REGn
- valid values for n are 1 to 2 - 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 Standard regulator bindings are used inside regulator subnodes. Check
Documentation/devicetree/bindings/regulator/regulator.txt Documentation/devicetree/bindings/regulator/regulator.txt
for more details for more details