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-rw-r--r--sound/soc/codecs/wm8731-i2c.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8731-i2c.c b/sound/soc/codecs/wm8731-i2c.c
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+++ b/sound/soc/codecs/wm8731-i2c.c
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+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * wm8731-i2c.c -- WM8731 ALSA SoC Audio driver I2C code
+ *
+ * Copyright 2005 Openedhand Ltd.
+ * Copyright 2006-12 Wolfson Microelectronics, plc
+ *
+ * Author: Richard Purdie <richard@openedhand.com>
+ *
+ * Based on wm8753.c by Liam Girdwood
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+
+#include "wm8731.h"
+
+
+static const struct of_device_id wm8731_of_match[] = {
+ { .compatible = "wlf,wm8731", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, wm8731_of_match);
+
+static int wm8731_i2c_probe(struct i2c_client *i2c)
+{
+ struct wm8731_priv *wm8731;
+ int ret;
+
+ wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),
+ GFP_KERNEL);
+ if (wm8731 == NULL)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, wm8731);
+
+ wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);
+ if (IS_ERR(wm8731->regmap)) {
+ ret = PTR_ERR(wm8731->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ return wm8731_init(&i2c->dev, wm8731);
+}
+
+static const struct i2c_device_id wm8731_i2c_id[] = {
+ { "wm8731", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);
+
+static struct i2c_driver wm8731_i2c_driver = {
+ .driver = {
+ .name = "wm8731",
+ .of_match_table = wm8731_of_match,
+ },
+ .probe_new = wm8731_i2c_probe,
+ .id_table = wm8731_i2c_id,
+};
+
+module_i2c_driver(wm8731_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC WM8731 driver - I2C");
+MODULE_AUTHOR("Richard Purdie");
+MODULE_LICENSE("GPL");