Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / codecs / ad193x-i2c.c

diff --git a/kernel/sound/soc/codecs/ad193x-i2c.c b/kernel/sound/soc/codecs/ad193x-i2c.c
new file mode 100644 (file)
index 0000000..df3a1a4
--- /dev/null
+++ b/kernel/sound/soc/codecs/ad193x-i2c.c
@@ -0,0 +1,54 @@
+/*
+ * AD1936/AD1937 audio driver
+ *
+ * Copyright 2014 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+
+#include <sound/soc.h>
+
+#include "ad193x.h"
+
+static const struct i2c_device_id ad193x_id[] = {
+       { "ad1936", 0 },
+       { "ad1937", 0 },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, ad193x_id);
+
+static int ad193x_i2c_probe(struct i2c_client *client,
+                           const struct i2c_device_id *id)
+{
+       struct regmap_config config;
+
+       config = ad193x_regmap_config;
+       config.val_bits = 8;
+       config.reg_bits = 8;
+
+       return ad193x_probe(&client->dev, devm_regmap_init_i2c(client, &config));
+}
+
+static int ad193x_i2c_remove(struct i2c_client *client)
+{
+       snd_soc_unregister_codec(&client->dev);
+       return 0;
+}
+
+static struct i2c_driver ad193x_i2c_driver = {
+       .driver = {
+               .name = "ad193x",
+       },
+       .probe    = ad193x_i2c_probe,
+       .remove   = ad193x_i2c_remove,
+       .id_table = ad193x_id,
+};
+module_i2c_driver(ad193x_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC AD1936/AD1937 audio CODEC driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");