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Commit 4d16700d authored by Markus Pargmann's avatar Markus Pargmann Committed by Mark Brown
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ASoC: tlv320aic32x4: DT support 



Add DT support for this codec. The bindings differ a bit from the aic3x
codec bindings, so I created a new binding documentation.

Signed-off-by: default avatarMarkus Pargmann <mpa@pengutronix.de>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent c671e79d

Documentation/devicetree/bindings/sound/tlv320aic32x4.txt

0 → 100644
+18 −0
Original line number Original line Diff line number Diff line 
Texas Instruments - tlv320aic32x4 Codec module



The tlv320aic32x4 serial control bus communicates through I2C protocols



Required properties:

 - compatible: Should be "ti,tlv320aic32x4"

 - reg: I2C slave address



Optional properties:

 - reset-gpios: Reset-GPIO phandle with args as described in gpio/gpio.txt





Example:



codec: tlv320aic32x4@18 {

	compatible = "ti,tlv320aic32x4";

	reg = <0x18>;

};

sound/soc/codecs/tlv320aic32x4.c

+25 −0
Original line number Original line Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include <linux/delay.h>

#include <linux/delay.h>

#include <linux/pm.h>

#include <linux/pm.h>

#include <linux/gpio.h>

#include <linux/gpio.h>

#include <linux/of_gpio.h>

#include <linux/i2c.h>

#include <linux/i2c.h>

#include <linux/cdev.h>

#include <linux/cdev.h>

#include <linux/slab.h>

#include <linux/slab.h>
@@ -669,11 +670,22 @@ static struct snd_soc_codec_driver soc_codec_dev_aic32x4 = { 
	.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),

	.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),

};

};





static int aic32x4_parse_dt(struct aic32x4_priv *aic32x4,

		struct device_node *np)

{

	aic32x4->swapdacs = false;

	aic32x4->micpga_routing = 0;

	aic32x4->rstn_gpio = of_get_named_gpio(np, "reset-gpios", 0);



	return 0;

}



static int aic32x4_i2c_probe(struct i2c_client *i2c,

static int aic32x4_i2c_probe(struct i2c_client *i2c,

			     const struct i2c_device_id *id)

			     const struct i2c_device_id *id)

{

{

	struct aic32x4_pdata *pdata = i2c->dev.platform_data;

	struct aic32x4_pdata *pdata = i2c->dev.platform_data;

	struct aic32x4_priv *aic32x4;

	struct aic32x4_priv *aic32x4;

	struct device_node *np = i2c->dev.of_node;

	int ret;

	int ret;





	aic32x4 = devm_kzalloc(&i2c->dev, sizeof(struct aic32x4_priv),

	aic32x4 = devm_kzalloc(&i2c->dev, sizeof(struct aic32x4_priv),
@@ -692,6 +704,12 @@ static int aic32x4_i2c_probe(struct i2c_client *i2c, 
		aic32x4->swapdacs = pdata->swapdacs;

		aic32x4->swapdacs = pdata->swapdacs;

		aic32x4->micpga_routing = pdata->micpga_routing;

		aic32x4->micpga_routing = pdata->micpga_routing;

		aic32x4->rstn_gpio = pdata->rstn_gpio;

		aic32x4->rstn_gpio = pdata->rstn_gpio;

	} else if (np) {

		ret = aic32x4_parse_dt(aic32x4, np);

		if (ret) {

			dev_err(&i2c->dev, "Failed to parse DT node\n");

			return ret;

		}

	} else {

	} else {

		aic32x4->power_cfg = 0;

		aic32x4->power_cfg = 0;

		aic32x4->swapdacs = false;

		aic32x4->swapdacs = false;
@@ -723,10 +741,17 @@ static const struct i2c_device_id aic32x4_i2c_id[] = { 
};

};

MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);

MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);





static const struct of_device_id aic32x4_of_id[] = {

	{ .compatible = "ti,tlv320aic32x4", },

	{ /* senitel */ }

};

MODULE_DEVICE_TABLE(of, aic32x4_of_id);



static struct i2c_driver aic32x4_i2c_driver = {

static struct i2c_driver aic32x4_i2c_driver = {

	.driver = {

	.driver = {

		.name = "tlv320aic32x4",

		.name = "tlv320aic32x4",

		.owner = THIS_MODULE,

		.owner = THIS_MODULE,

		.of_match_table = aic32x4_of_id,

	},

	},

	.probe =    aic32x4_i2c_probe,

	.probe =    aic32x4_i2c_probe,

	.remove =   aic32x4_i2c_remove,

	.remove =   aic32x4_i2c_remove,