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Commit 391fc59d authored by Brian Austin's avatar Brian Austin Committed by Mark Brown
Browse files

ASoC: cs42l52: Add devicetree support for CS42L52 



This patch adds device tree support for the CS42L52 Codec

Signed-off-by: default avatarBrian Austin <brian.austin@cirrus.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 44b2ed54

sound/soc/codecs/cs42l52.c

+42 −3
Original line number Diff line number Diff line
@@ -17,7 +17,7 @@ 
#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/delay.h>

#include <linux/gpio.h>

#include <linux/of_gpio.h>

#include <linux/pm.h>

#include <linux/i2c.h>

#include <linux/input.h>
@@ -1193,6 +1193,7 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client, 
	int ret;

	unsigned int devid = 0;

	unsigned int reg;

	u32 val32;



	cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private),

			       GFP_KERNEL);
@@ -1206,9 +1207,39 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client, 
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);

		return ret;

	}



	if (pdata)

	if (pdata) {

		cs42l52->pdata = *pdata;

	} else {

		pdata = devm_kzalloc(&i2c_client->dev,

				     sizeof(struct cs42l52_platform_data),

				GFP_KERNEL);

		if (!pdata) {

			dev_err(&i2c_client->dev, "could not allocate pdata\n");

			return -ENOMEM;

		}

		if (i2c_client->dev.of_node) {

			if (of_property_read_bool(i2c_client->dev.of_node,

				"cirrus,mica-differential-cfg"))

				pdata->mica_diff_cfg = true;



			if (of_property_read_bool(i2c_client->dev.of_node,

				"cirrus,micb-differential-cfg"))

				pdata->micb_diff_cfg = true;



			if (of_property_read_u32(i2c_client->dev.of_node,

				"cirrus,micbias-lvl", &val32) >= 0)

				pdata->micbias_lvl = val32;



			if (of_property_read_u32(i2c_client->dev.of_node,

				"cirrus,chgfreq-divisor", &val32) >= 0)

				pdata->chgfreq_divisor = val32;



			pdata->reset_gpio =

				of_get_named_gpio(i2c_client->dev.of_node,

						"cirrus,reset-gpio", 0);

		}

		cs42l52->pdata = *pdata;

	}



	if (cs42l52->pdata.reset_gpio) {

		ret = gpio_request_one(cs42l52->pdata.reset_gpio,
@@ -1280,6 +1311,13 @@ static int cs42l52_i2c_remove(struct i2c_client *client) 
	return 0;

}



static const struct of_device_id cs42l52_of_match[] = {

	{ .compatible = "cirrus,cs42l52", },

	{},

};

MODULE_DEVICE_TABLE(of, cs42l52_of_match);





static const struct i2c_device_id cs42l52_id[] = {

	{ "cs42l52", 0 },

	{ }
@@ -1290,6 +1328,7 @@ static struct i2c_driver cs42l52_i2c_driver = { 
	.driver = {

		.name = "cs42l52",

		.owner = THIS_MODULE,

		.of_match_table = cs42l52_of_match,

	},

	.id_table = cs42l52_id,

	.probe =    cs42l52_i2c_probe,