ASoC: SSM2602: add SPI support
The ssm2602 codec has a SPI interface as well as I2C, so add the simple
bit of glue to make it usable.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index 8a2b52f..7e21949 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -32,6 +32,7 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
+#include <linux/spi/spi.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/core.h>
@@ -556,6 +557,43 @@
.reg_cache_default = ssm2602_reg,
};
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit ssm2602_spi_probe(struct spi_device *spi)
+{
+ struct ssm2602_priv *ssm2602;
+ int ret;
+
+ ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
+ if (ssm2602 == NULL)
+ return -ENOMEM;
+
+ spi_set_drvdata(spi, ssm2602);
+ ssm2602->control_type = SND_SOC_SPI;
+
+ ret = snd_soc_register_codec(&spi->dev,
+ &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
+ if (ret < 0)
+ kfree(ssm2602);
+ return ret;
+}
+
+static int __devexit ssm2602_spi_remove(struct spi_device *spi)
+{
+ snd_soc_unregister_codec(&spi->dev);
+ kfree(spi_get_drvdata(spi));
+ return 0;
+}
+
+static struct spi_driver ssm2602_spi_driver = {
+ .driver = {
+ .name = "ssm2602",
+ .owner = THIS_MODULE,
+ },
+ .probe = ssm2602_spi_probe,
+ .remove = __devexit_p(ssm2602_spi_remove),
+};
+#endif
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
/*
* ssm2602 2 wire address is determined by GPIO5
@@ -612,19 +650,29 @@
static int __init ssm2602_modinit(void)
{
int ret = 0;
+
+#if defined(CONFIG_SPI_MASTER)
+ ret = spi_register_driver(&ssm2602_spi_driver);
+ if (ret)
+ return ret;
+#endif
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
ret = i2c_add_driver(&ssm2602_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register SSM2602 I2C driver: %d\n",
- ret);
- }
+ if (ret)
+ return ret;
#endif
+
return ret;
}
module_init(ssm2602_modinit);
static void __exit ssm2602_exit(void)
{
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&ssm2602_spi_driver);
+#endif
+
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&ssm2602_i2c_driver);
#endif