ASoC: cs4271: Split SPI and I2C code into different modules

Currently the cs4271 driver depends on SND_SOC_I2C_AND_SPI.
So the driver cannot be built as built-in if CONFIG_I2C=m.
Split SPI and I2C code into different modules to avoid this issue.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/sound/soc/codecs/cs4271-i2c.c b/sound/soc/codecs/cs4271-i2c.c
new file mode 100644
index 000000000000..b264da030340
--- /dev/null
+++ b/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");