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dt-bindings: mfd: rk808: Add binding information for RK809 and RK817. 

Add device tree bindings documentation for Rockchip's RK809 & RK817 PMIC.

Signed-off-by: Tony Xie <tony.xie@rock-chips.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Tony Xie 2019-06-21 06:32:56 -04:00 committed by Lee Jones
parent e444f6d68c
commit 696d7349f7
1 changed files with 44 additions and 0 deletions
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44
Documentation/devicetree/bindings/mfd/rk808.txt
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@ -3,11 +3,15 @@ RK8XX Power Management Integrated Circuit
The rk8xx family current members:
rk805
rk808
rk809
rk817
rk818
Required properties:
- compatible: "rockchip,rk805"
- compatible: "rockchip,rk808"
- compatible: "rockchip,rk809"
- compatible: "rockchip,rk817"
- compatible: "rockchip,rk818"
- reg: I2C slave address
- interrupts: the interrupt outputs of the controller.
@ -45,6 +49,23 @@ Optional RK808 properties:
the gpio controller. If DVS GPIOs aren't present, voltage changes will happen
very quickly with no slow ramp time.
Optional shared RK809 and RK817 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
- vcc5-supply: The input supply for LDO_REG1, LDO_REG2, LDO_REG3
- vcc6-supply: The input supply for LDO_REG4, LDO_REG5, LDO_REG6
- vcc7-supply: The input supply for LDO_REG7, LDO_REG8, LDO_REG9
Optional RK809 properties:
- vcc8-supply: The input supply for SWITCH_REG1
- vcc9-supply: The input supply for DCDC_REG5, SWITCH_REG2
Optional RK817 properties:
- vcc8-supply: The input supply for BOOST
- vcc9-supply: The input supply for OTG_SWITCH
Optional RK818 properties:
- vcc1-supply: The input supply for DCDC_REG1
- vcc2-supply: The input supply for DCDC_REG2
@ -86,6 +107,21 @@ number as described in RK808 datasheet.
- SWITCH_REGn
- valid values for n are 1 to 2
Following regulators of the RK809 and RK817 PMIC blocks are supported. Note that
the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
number as described in RK809 and RK817 datasheets.
- DCDC_REGn
- valid values for n are 1 to 5 for RK809.
- valid values for n are 1 to 4 for RK817.
- LDO_REGn
- valid values for n are 1 to 9 for RK809.
- valid values for n are 1 to 9 for RK817.
- SWITCH_REGn
- valid values for n are 1 to 2 for RK809.
- BOOST for RK817
- OTG_SWITCH for RK817
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.
@ -98,6 +134,14 @@ number as described in RK818 datasheet.
- HDMI_SWITCH
- OTG_SWITCH
It is necessary to configure three pins for both the RK809 and RK817, the three
pins are "gpio_ts" "gpio_gt" "gpio_slp".
The gpio_gt and gpio_ts pins support the gpio function.
The gpio_slp pin is for controlling the pmic states, as below:
- reset
- power down
- sleep
Standard regulator bindings are used inside regulator subnodes. Check
Documentation/devicetree/bindings/regulator/regulator.txt
for more details