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ASoC: rt5651: add ACPI and OF support

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

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bard Liao 2015-12-23 18:24:09 +08:00 committed by Mark Brown
parent 8005c49d9a
commit 3ae08dc0fc
2 changed files with 72 additions and 0 deletions
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41
Documentation/devicetree/bindings/sound/rt5651.txt Normal file
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@ -0,0 +1,41 @@
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";
};

31
sound/soc/codecs/rt5651.c
View File

@ -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,