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ASoC: ssm2602: add device tree bindings 

Allow the ssm2602/ssm2603/ssm2604 codec driver to be
instantiated from the device tree.

Also, add Kconfig prompts to allow manual selection of both the
I2C and SPI configuration versions of the driver.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Stefan Kristiansson 2014-09-29 22:41:10 +03:00 committed by Mark Brown
parent fe2a08b3bf
commit 555b9ee136
4 changed files with 41 additions and 2 deletions
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19
Documentation/devicetree/bindings/sound/adi,ssm2602.txt Normal file
View File

@ -0,0 +1,19 @@
Analog Devices SSM2602, SSM2603 and SSM2604 I2S audio CODEC devices
SSM2602 support both I2C and SPI as the configuration interface,
the selection is made by the MODE strap-in pin.
SSM2603 and SSM2604 only support I2C as the configuration interface.
Required properties:
- compatible : One of "adi,ssm2602", "adi,ssm2603" or "adi,ssm2604"
- reg : the I2C address of the device for I2C, the chip select
number for SPI.
Example:
ssm2602: ssm2602@1a {
compatible = "adi,ssm2602";
reg = <0x1a>;
};

8
sound/soc/codecs/Kconfig
View File

@ -520,12 +520,16 @@ config SND_SOC_SSM2602
tristate
config SND_SOC_SSM2602_SPI
tristate "Analog Devices SSM2602 CODEC - SPI"
depends on SPI_MASTER
select SND_SOC_SSM2602
tristate
select REGMAP_SPI
config SND_SOC_SSM2602_I2C
tristate "Analog Devices SSM2602 CODEC - I2C"
depends on I2C
select SND_SOC_SSM2602
tristate
select REGMAP_I2C
config SND_SOC_STA32X
tristate

9
sound/soc/codecs/ssm2602-i2c.c
View File

@ -41,10 +41,19 @@ static const struct i2c_device_id ssm2602_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
static const struct of_device_id ssm2602_of_match[] = {
{ .compatible = "adi,ssm2602", },
{ .compatible = "adi,ssm2603", },
{ .compatible = "adi,ssm2604", },
{ }
};
MODULE_DEVICE_TABLE(of, ssm2602_of_match);
static struct i2c_driver ssm2602_i2c_driver = {
.driver = {
.name = "ssm2602",
.owner = THIS_MODULE,
.of_match_table = ssm2602_of_match,
},
.probe = ssm2602_i2c_probe,
.remove = ssm2602_i2c_remove,

7
sound/soc/codecs/ssm2602-spi.c
View File

@ -26,10 +26,17 @@ static int ssm2602_spi_remove(struct spi_device *spi)
return 0;
}
static const struct of_device_id ssm2602_of_match[] = {
{ .compatible = "adi,ssm2602", },
{ }
};
MODULE_DEVICE_TABLE(of, ssm2602_of_match);
static struct spi_driver ssm2602_spi_driver = {
.driver = {
.name = "ssm2602",
.owner = THIS_MODULE,
.of_match_table = ssm2602_of_match,
},
.probe = ssm2602_spi_probe,
.remove = ssm2602_spi_remove,