Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / codecs / tlv320aic23-i2c.c

diff --git a/kernel/sound/soc/codecs/tlv320aic23-i2c.c b/kernel/sound/soc/codecs/tlv320aic23-i2c.c
new file mode 100644 (file)
index 0000000..78a94af
--- /dev/null
+++ b/kernel/sound/soc/codecs/tlv320aic23-i2c.c
@@ -0,0 +1,67 @@
+/*
+ * ALSA SoC TLV320AIC23 codec driver I2C interface
+ *
+ * Author:      Arun KS, <arunks@mistralsolutions.com>
+ * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
+ *
+ * Based on sound/soc/codecs/wm8731.c by Richard Purdie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+
+#include "tlv320aic23.h"
+
+static int tlv320aic23_i2c_probe(struct i2c_client *i2c,
+                                const struct i2c_device_id *i2c_id)
+{
+       struct regmap *regmap;
+
+       if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+               return -EINVAL;
+
+       regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
+       return tlv320aic23_probe(&i2c->dev, regmap);
+}
+
+static int tlv320aic23_i2c_remove(struct i2c_client *i2c)
+{
+       snd_soc_unregister_codec(&i2c->dev);
+       return 0;
+}
+
+static const struct i2c_device_id tlv320aic23_id[] = {
+       {"tlv320aic23", 0},
+       {}
+};
+
+MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
+
+static const struct of_device_id tlv320aic23_of_match[] = {
+       { .compatible = "ti,tlv320aic23", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, tlv320aic23_of_match);
+
+static struct i2c_driver tlv320aic23_i2c_driver = {
+       .driver = {
+                  .name = "tlv320aic23-codec",
+                  .of_match_table = of_match_ptr(tlv320aic23_of_match),
+                  },
+       .probe = tlv320aic23_i2c_probe,
+       .remove = tlv320aic23_i2c_remove,
+       .id_table = tlv320aic23_id,
+};
+
+module_i2c_driver(tlv320aic23_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
+MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
+MODULE_LICENSE("GPL");