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Documentation / devicetree / bindings / mfd / twl6040.txt




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:55 EST.

1	Texas Instruments TWL6040 family
2	
3	The TWL6040s are 8-channel high quality low-power audio codecs providing audio,
4	vibra and GPO functionality on OMAP4+ platforms.
5	They are connected ot the host processor via i2c for commands, McPDM for audio
6	data and commands.
7	
8	Required properties:
9	- compatible : "ti,twl6040" for twl6040, "ti,twl6041" for twl6041
10	- reg: must be 0x4b for i2c address
11	- interrupts: twl6040 has one interrupt line connecteded to the main SoC
12	- interrupt-parent: The parent interrupt controller
13	- gpio-controller:
14	- #gpio-cells = <1>: twl6040 provides GPO lines.
15	- #clock-cells = <0>; twl6040 is a provider of pdmclk which is used by McPDM
16	- twl6040,audpwron-gpio: Power on GPIO line for the twl6040
17	
18	- vio-supply: Regulator for the twl6040 VIO supply
19	- v2v1-supply: Regulator for the twl6040 V2V1 supply
20	
21	Optional properties, nodes:
22	- enable-active-high: To power on the twl6040 during boot.
23	- clocks: phandle to the clk32k and/or to mclk clock provider
24	- clock-names: Must be "clk32k" for the 32K clock and "mclk" for the MCLK.
25	
26	Vibra functionality
27	Required properties:
28	- vddvibl-supply: Regulator for the left vibra motor
29	- vddvibr-supply: Regulator for the right vibra motor
30	- vibra { }: Configuration section for vibra parameters containing the following
31		     properties:
32	- ti,vibldrv-res: Resistance parameter for left driver
33	- ti,vibrdrv-res: Resistance parameter for right driver
34	- ti,viblmotor-res: Resistance parameter for left motor
35	- ti,viblmotor-res: Resistance parameter for right motor
36	
37	Optional properties within vibra { } section:
38	- vddvibl_uV: If the vddvibl default voltage need to be changed
39	- vddvibr_uV: If the vddvibr default voltage need to be changed
40	
41	Example:
42	&i2c1 {
43		twl6040: twl@4b {
44			compatible = "ti,twl6040";
45	
46			interrupts = <0 119 4>;
47			interrupt-parent = <&gic>;
48			twl6040,audpwron-gpio = <&gpio4 31 0>;
49	
50			vio-supply = <&v1v8>;
51			v2v1-supply = <&v2v1>;
52			enable-active-high;
53	
54			/* regulators for vibra motor */
55			vddvibl-supply = <&vbat>;
56			vddvibr-supply = <&vbat>;
57	
58			vibra {
59				/* Vibra driver, motor resistance parameters */
60				ti,vibldrv-res = <8>;
61				ti,vibrdrv-res = <3>;
62				ti,viblmotor-res = <10>;
63				ti,vibrmotor-res = <10>;
64			};
65		};
66	};
67	
68	/include/ "twl6040.dtsi"
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