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authorBenoit Cousson <b-cousson@ti.com>2011-08-29 10:20:23 -0400
committerSamuel Ortiz <sameo@linux.intel.com>2012-01-08 18:37:40 -0500
commitaeb5032b3f8b9ab69daa545777433fa94b3494c4 (patch)
tree70a5ec2e43e0ae6c4e7d5793bf79da61c1ac7bf9 /Documentation
parent5391b5c645a86d4657c2175acbf21c6461d34849 (diff)
mfd: twl-core: Add initial DT support for twl4030/twl6030
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/mfd/twl-familly.txt47
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1Texas Instruments TWL family
2
3The TWLs are Integrated Power Management Chips.
4Some version might contain much more analog function like
5USB transceiver or Audio amplifier.
6These chips are connected to an i2c bus.
7
8
9Required properties:
10- compatible : Must be "ti,twl4030";
11 For Integrated power-management/audio CODEC device used in OMAP3
12 based boards
13- compatible : Must be "ti,twl6030";
14 For Integrated power-management used in OMAP4 based boards
15- interrupts : This i2c device has an IRQ line connected to the main SoC
16- interrupt-controller : Since the twl support several interrupts internally,
17 it is considered as an interrupt controller cascaded to the SoC one.
18- #interrupt-cells = <1>;
19- interrupt-parent : The parent interrupt controller.
20
21Optional node:
22- Child nodes contain in the twl. The twl family is made of several variants
23 that support a different number of features.
24 The children nodes will thus depend of the capability of the variant.
25
26
27Example:
28/*
29 * Integrated Power Management Chip
30 * http://www.ti.com/lit/ds/symlink/twl6030.pdf
31 */
32twl@48 {
33 compatible = "ti,twl6030";
34 reg = <0x48>;
35 interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */
36 interrupt-controller;
37 #interrupt-cells = <1>;
38 interrupt-parent = <&gic>;
39 #address-cells = <1>;
40 #size-cells = <0>;
41
42 twl_rtc {
43 compatible = "ti,twl_rtc";
44 interrupts = <11>;
45 reg = <0>;
46 };
47};