Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / codecs / cs4271-i2c.c

diff --git a/kernel/sound/soc/codecs/cs4271-i2c.c b/kernel/sound/soc/codecs/cs4271-i2c.c
new file mode 100644 (file)
index 0000000..b264da0
--- /dev/null
+++ b/kernel/sound/soc/codecs/cs4271-i2c.c
@@ -0,0 +1,62 @@
+/*
+ * CS4271 I2C audio driver
+ *
+ * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include "cs4271.h"
+
+static int cs4271_i2c_probe(struct i2c_client *client,
+                            const struct i2c_device_id *id)
+{
+       struct regmap_config config;
+
+       config = cs4271_regmap_config;
+       config.reg_bits = 8;
+       config.val_bits = 8;
+
+       return cs4271_probe(&client->dev,
+                           devm_regmap_init_i2c(client, &config));
+}
+
+static int cs4271_i2c_remove(struct i2c_client *client)
+{
+       snd_soc_unregister_codec(&client->dev);
+       return 0;
+}
+
+static const struct i2c_device_id cs4271_i2c_id[] = {
+       { "cs4271", 0 },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);
+
+static struct i2c_driver cs4271_i2c_driver = {
+       .driver = {
+               .name = "cs4271",
+               .owner = THIS_MODULE,
+               .of_match_table = of_match_ptr(cs4271_dt_ids),
+       },
+       .probe = cs4271_i2c_probe,
+       .remove = cs4271_i2c_remove,
+       .id_table = cs4271_i2c_id,
+};
+module_i2c_driver(cs4271_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC CS4271 I2C Driver");
+MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
+MODULE_LICENSE("GPL");