Commit 2ec1be37 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Liam Girdwood
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ASoC: omap-dmic: Add device tree bindings 



Device tree support for OMAP4+ dmic cpu dai driver.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLiam Girdwood <lrg@ti.com>
parent 7cb8a1b5

Documentation/devicetree/bindings/sound/omap-dmic.txt

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+21 −0
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* Texas Instruments OMAP4+ Digital Microphone Module



Required properties:

- compatible: "ti,omap4-dmic"

- reg: Register location and size as an array:

       <MPU access base address, size>,

       <L3 interconnect address, size>;

- interrupts: Interrupt number for DMIC

- interrupt-parent: The parent interrupt controller

- ti,hwmods: Name of the hwmod associated with OMAP dmic IP



Example:



dmic: dmic@4012e000 {

	compatible = "ti,omap4-dmic";

	reg = <0x4012e000 0x7f>, /* MPU private access */

	      <0x4902e000 0x7f>; /* L3 Interconnect */

	interrupts = <0 114 0x4>;

	interrupt-parent = <&gic>;

	ti,hwmods = "dmic";

};

sound/soc/omap/omap-dmic.c

+8 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
#include <linux/io.h>

#include <linux/slab.h>

#include <linux/pm_runtime.h>

#include <linux/of_device.h>

#include <plat/dma.h>



#include <sound/core.h>
@@ -528,10 +529,17 @@ static int __devexit asoc_dmic_remove(struct platform_device *pdev) 
	return 0;

}



static const struct of_device_id omap_dmic_of_match[] = {

	{ .compatible = "ti,omap4-dmic", },

	{ }

};

MODULE_DEVICE_TABLE(of, omap_dmic_of_match);



static struct platform_driver asoc_dmic_driver = {

	.driver = {

		.name = "omap-dmic",

		.owner = THIS_MODULE,

		.of_match_table = omap_dmic_of_match,

	},

	.probe = asoc_dmic_probe,

	.remove = __devexit_p(asoc_dmic_remove),