^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) Texas Instruments TWL family
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) The TWLs are Integrated Power Management Chips.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) Some version might contain much more analog function like
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) USB transceiver or Audio amplifier.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) These chips are connected to an i2c bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) Required properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) - compatible : Must be "ti,twl4030";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) For Integrated power-management/audio CODEC device used in OMAP3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) based boards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) - compatible : Must be "ti,twl6030";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) For Integrated power-management used in OMAP4 based boards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) - interrupts : This i2c device has an IRQ line connected to the main SoC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) - interrupt-controller : Since the twl support several interrupts internally,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) it is considered as an interrupt controller cascaded to the SoC one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) - #interrupt-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) Optional node:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) - Child nodes contain in the twl. The twl family is made of several variants
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) that support a different number of features.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) The children nodes will thus depend of the capability of the variant.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Integrated Power Management Chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * https://www.ti.com/lit/ds/symlink/twl6030.pdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) twl@48 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) compatible = "ti,twl6030";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) reg = <0x48>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) interrupt-controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #interrupt-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) interrupt-parent = <&gic>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #address-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #size-cells = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) twl_rtc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) compatible = "ti,twl_rtc";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) interrupts = <11>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) reg = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };