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In certain boards the source for the clk32k clock can be gated. In these boards the clk32k clock can be provided to the driver and it is going to be enabled/disabled when it is needed. If the clk32k clock is not provided the driver will assume that it is always running. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
68 lines
2.0 KiB
Plaintext
68 lines
2.0 KiB
Plaintext
Texas Instruments TWL6040 family
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The TWL6040s are 8-channel high quality low-power audio codecs providing audio,
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vibra and GPO functionality on OMAP4+ platforms.
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They are connected ot the host processor via i2c for commands, McPDM for audio
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data and commands.
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Required properties:
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- compatible : "ti,twl6040" for twl6040, "ti,twl6041" for twl6041
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- reg: must be 0x4b for i2c address
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- interrupts: twl6040 has one interrupt line connecteded to the main SoC
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- interrupt-parent: The parent interrupt controller
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- gpio-controller:
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- #gpio-cells = <1>: twl6040 provides GPO lines.
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- twl6040,audpwron-gpio: Power on GPIO line for the twl6040
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- vio-supply: Regulator for the twl6040 VIO supply
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- v2v1-supply: Regulator for the twl6040 V2V1 supply
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Optional properties, nodes:
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- enable-active-high: To power on the twl6040 during boot.
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- clocks: phandle to the clk32k clock provider
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- clock-names: Must be "clk32k"
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Vibra functionality
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Required properties:
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- vddvibl-supply: Regulator for the left vibra motor
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- vddvibr-supply: Regulator for the right vibra motor
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- vibra { }: Configuration section for vibra parameters containing the following
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properties:
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- ti,vibldrv-res: Resistance parameter for left driver
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- ti,vibrdrv-res: Resistance parameter for right driver
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- ti,viblmotor-res: Resistance parameter for left motor
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- ti,viblmotor-res: Resistance parameter for right motor
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Optional properties within vibra { } section:
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- vddvibl_uV: If the vddvibl default voltage need to be changed
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- vddvibr_uV: If the vddvibr default voltage need to be changed
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Example:
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&i2c1 {
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twl6040: twl@4b {
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compatible = "ti,twl6040";
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interrupts = <0 119 4>;
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interrupt-parent = <&gic>;
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twl6040,audpwron-gpio = <&gpio4 31 0>;
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vio-supply = <&v1v8>;
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v2v1-supply = <&v2v1>;
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enable-active-high;
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/* regulators for vibra motor */
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vddvibl-supply = <&vbat>;
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vddvibr-supply = <&vbat>;
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vibra {
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/* Vibra driver, motor resistance parameters */
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ti,vibldrv-res = <8>;
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ti,vibrdrv-res = <3>;
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ti,viblmotor-res = <10>;
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ti,vibrmotor-res = <10>;
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};
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};
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};
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/include/ "twl6040.dtsi"
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