76714d2c09
These settings are based on the "Recommended Sleep Sequences for the Zoom Platform". The settings assume most of the regulators are under control of Linux, and twl4030 only cuts off VDD1 and VDD2 during off-idle as Linux cannot do it. For any board specific changes to these, let's patch them in as changes to the generic data in the follow-up patches. This keeps the board specific changes small. Note that this does not consider the twl5030 errata 27 and 28. That can be added later on after it has been tested. For more information about errata 27 and 28. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
Texas Instruments TWL family (twl4030) reset and power management module
|
|
|
|
The power management module inside the TWL family provides several facilities
|
|
to control the power resources, including power scripts. For now, the
|
|
binding only supports the complete shutdown of the system after poweroff.
|
|
|
|
Required properties:
|
|
- compatible : must be one of the following
|
|
"ti,twl4030-power"
|
|
"ti,twl4030-power-reset"
|
|
"ti,twl4030-power-idle"
|
|
|
|
The use of ti,twl4030-power-reset is recommended at least on
|
|
3530 that needs a special configuration for warm reset to work.
|
|
|
|
When using ti,twl4030-power-idle, the TI recommended configuration
|
|
for idle modes is loaded to the tlw4030 PMIC.
|
|
|
|
Optional properties:
|
|
- ti,use_poweroff: With this flag, the chip will initiates an ACTIVE-to-OFF or
|
|
SLEEP-to-OFF transition when the system poweroffs.
|
|
|
|
Example:
|
|
&i2c1 {
|
|
clock-frequency = <2600000>;
|
|
|
|
twl: twl@48 {
|
|
reg = <0x48>;
|
|
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
|
|
interrupt-parent = <&intc>;
|
|
|
|
twl_power: power {
|
|
compatible = "ti,twl4030-power";
|
|
ti,use_poweroff;
|
|
};
|
|
};
|
|
};
|