aeb5032b3f
Add initial device-tree support for twl familly chips. The current version is missing the regulator entries due to the lack of DT regulator bindings for the moment. Only the simple sub-modules that do not depend on platform_data information can be initialized properly. Add irqdomain support. Add documentation for the Texas Instruments TWL Integrated Chip. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Balaji T K <balajitk@ti.com> Cc: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Rob Herring <rob.herring@calxeda.com> [grant.likely@secretlab.ca: Fix IRQ_DOMAIN dependency in kconfig] Cc: Grant Likely <grant.likely@secretlab.ca>
47 lines
1.4 KiB
Text
47 lines
1.4 KiB
Text
Texas Instruments TWL family
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The TWLs are Integrated Power Management Chips.
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Some version might contain much more analog function like
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USB transceiver or Audio amplifier.
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These chips are connected to an i2c bus.
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Required properties:
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- compatible : Must be "ti,twl4030";
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For Integrated power-management/audio CODEC device used in OMAP3
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based boards
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- compatible : Must be "ti,twl6030";
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For Integrated power-management used in OMAP4 based boards
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- interrupts : This i2c device has an IRQ line connected to the main SoC
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- interrupt-controller : Since the twl support several interrupts internally,
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it is considered as an interrupt controller cascaded to the SoC one.
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- #interrupt-cells = <1>;
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- interrupt-parent : The parent interrupt controller.
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Optional node:
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- Child nodes contain in the twl. The twl family is made of several variants
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that support a different number of features.
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The children nodes will thus depend of the capability of the variant.
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Example:
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/*
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* Integrated Power Management Chip
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* http://www.ti.com/lit/ds/symlink/twl6030.pdf
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*/
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twl@48 {
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compatible = "ti,twl6030";
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reg = <0x48>;
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interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */
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interrupt-controller;
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#interrupt-cells = <1>;
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interrupt-parent = <&gic>;
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#address-cells = <1>;
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#size-cells = <0>;
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twl_rtc {
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compatible = "ti,twl_rtc";
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interrupts = <11>;
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reg = <0>;
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};
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};
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