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 --- Changes in v2: - Remove "ssm2603" and "ssm2604" from the spi compatible list --- .../devicetree/bindings/sound/adi,ssm2602.txt | 19 +++++++++++++++++++ sound/soc/codecs/Kconfig | 8 ++++++-- sound/soc/codecs/ssm2602-i2c.c | 9 +++++++++ sound/soc/codecs/ssm2602-spi.c | 7 +++++++ 4 files changed, 41 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/adi,ssm2602.txt

diff --git a/Documentation/devicetree/bindings/sound/adi,ssm2602.txt b/Documentation/devicetree/bindings/sound/adi,ssm2602.txt new file mode 100644 index 0000000..3b3302f --- /dev/null +++ b/Documentation/devicetree/bindings/sound/adi,ssm2602.txt @@ -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>; + }; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 8838838e..3649e73 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -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 diff --git a/sound/soc/codecs/ssm2602-i2c.c b/sound/soc/codecs/ssm2602-i2c.c index abd63d5..0d9779d 100644 --- a/sound/soc/codecs/ssm2602-i2c.c +++ b/sound/soc/codecs/ssm2602-i2c.c @@ -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, diff --git a/sound/soc/codecs/ssm2602-spi.c b/sound/soc/codecs/ssm2602-spi.c index 2bf55e2..b5df14f 100644 --- a/sound/soc/codecs/ssm2602-spi.c +++ b/sound/soc/codecs/ssm2602-spi.c @@ -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,