mirror of https://gitee.com/openkylin/linux.git
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
Texas Instruments TWL family
|
|
|
|
The TWLs are Integrated Power Management Chips.
|
|
Some version might contain much more analog function like
|
|
USB transceiver or Audio amplifier.
|
|
These chips are connected to an i2c bus.
|
|
|
|
|
|
Required properties:
|
|
- compatible : Must be "ti,twl4030";
|
|
For Integrated power-management/audio CODEC device used in OMAP3
|
|
based boards
|
|
- compatible : Must be "ti,twl6030";
|
|
For Integrated power-management used in OMAP4 based boards
|
|
- interrupts : This i2c device has an IRQ line connected to the main SoC
|
|
- interrupt-controller : Since the twl support several interrupts internally,
|
|
it is considered as an interrupt controller cascaded to the SoC one.
|
|
- #interrupt-cells = <1>;
|
|
- interrupt-parent : The parent interrupt controller.
|
|
|
|
Optional node:
|
|
- Child nodes contain in the twl. The twl family is made of several variants
|
|
that support a different number of features.
|
|
The children nodes will thus depend of the capability of the variant.
|
|
|
|
|
|
Example:
|
|
/*
|
|
* Integrated Power Management Chip
|
|
* http://www.ti.com/lit/ds/symlink/twl6030.pdf
|
|
*/
|
|
twl@48 {
|
|
compatible = "ti,twl6030";
|
|
reg = <0x48>;
|
|
interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */
|
|
interrupt-controller;
|
|
#interrupt-cells = <1>;
|
|
interrupt-parent = <&gic>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
twl_rtc {
|
|
compatible = "ti,twl_rtc";
|
|
interrupts = <11>;
|
|
reg = <0>;
|
|
};
|
|
};
|