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Commit 3ae08dc0 authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
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ASoC: rt5651: add ACPI and OF support 



Add required tables and the binding document for ACPI and OF matching.

Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarBard Liao <bardliao@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 8005c49d

Documentation/devicetree/bindings/sound/rt5651.txt

0 → 100644
+41 −0
Original line number Diff line number Diff line 
RT5651 audio CODEC



This device supports I2C only.



Required properties:



- compatible : "realtek,rt5651".



- reg : The I2C address of the device.



Optional properties:



- realtek,in2-differential

  Boolean. Indicate MIC2 input are differential, rather than single-ended.



- realtek,dmic-en

  Boolean. true if dmic is used.



Pins on the device (for linking into audio routes) for RT5651:



  * DMIC L1

  * DMIC R1

  * IN1P

  * IN2P

  * IN2N

  * IN3P

  * HPOL

  * HPOR

  * LOUTL

  * LOUTR

  * PDML

  * PDMR



Example:



codec: rt5651@1a {

	compatible = "realtek,rt5651";

	reg = <0x1a>;

	realtek,dmic-en = "true";

	realtek,in2-diff = "false";

};

sound/soc/codecs/rt5651.c

+31 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/regmap.h>

#include <linux/platform_device.h>

#include <linux/spi/spi.h>

#include <linux/acpi.h>

#include <sound/core.h>

#include <sound/pcm.h>

#include <sound/pcm_params.h>
@@ -1735,12 +1736,38 @@ static const struct regmap_config rt5651_regmap = { 
	.num_ranges = ARRAY_SIZE(rt5651_ranges),

};



#if defined(CONFIG_OF)

static const struct of_device_id rt5651_of_match[] = {

	{ .compatible = "realtek,rt5651", },

	{},

};

MODULE_DEVICE_TABLE(of, rt5651_of_match);

#endif



#ifdef CONFIG_ACPI

static const struct acpi_device_id rt5651_acpi_match[] = {

	{ "10EC5651", 0 },

	{ },

};

MODULE_DEVICE_TABLE(acpi, rt5651_acpi_match);

#endif



static const struct i2c_device_id rt5651_i2c_id[] = {

	{ "rt5651", 0 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, rt5651_i2c_id);



static int rt5651_parse_dt(struct rt5651_priv *rt5651, struct device_node *np)

{

	rt5651->pdata.in2_diff = of_property_read_bool(np,

		"realtek,in2-differential");

	rt5651->pdata.dmic_en = of_property_read_bool(np,

		"realtek,dmic-en");



	return 0;

}



static int rt5651_i2c_probe(struct i2c_client *i2c,

		    const struct i2c_device_id *id)

{
@@ -1757,6 +1784,8 @@ static int rt5651_i2c_probe(struct i2c_client *i2c, 


	if (pdata)

		rt5651->pdata = *pdata;

	else if (i2c->dev.of_node)

		rt5651_parse_dt(rt5651, i2c->dev.of_node);



	rt5651->regmap = devm_regmap_init_i2c(i2c, &rt5651_regmap);

	if (IS_ERR(rt5651->regmap)) {
@@ -1806,6 +1835,8 @@ static int rt5651_i2c_remove(struct i2c_client *i2c) 
static struct i2c_driver rt5651_i2c_driver = {

	.driver = {

		.name = "rt5651",

		.acpi_match_table = ACPI_PTR(rt5651_acpi_match),

		.of_match_table = of_match_ptr(rt5651_of_match),

	},

	.probe = rt5651_i2c_probe,

	.remove   = rt5651_i2c_remove,