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Diffstat (limited to 'sound/soc/codecs/wm8753.c')
-rw-r--r--sound/soc/codecs/wm8753.c177
1 files changed, 121 insertions, 56 deletions
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index e873414840c..d426eaa2218 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -2,8 +2,7 @@
* wm8753.c -- WM8753 ALSA Soc Audio driver
*
* Copyright 2003 Wolfson Microelectronics PLC.
- * Author: Liam Girdwood
- * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
*
* 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
@@ -40,6 +39,7 @@
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -51,7 +51,6 @@
#include "wm8753.h"
-#define AUDIO_NAME "wm8753"
#define WM8753_VERSION "0.16"
static int caps_charge = 2000;
@@ -1637,86 +1636,145 @@ static struct snd_soc_device *wm8753_socdev;
* low = 0x1a
* high = 0x1b
*/
-static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
-/* Magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
-
-static struct i2c_driver wm8753_i2c_driver;
-static struct i2c_client client_template;
-
-static int wm8753_codec_probe(struct i2c_adapter *adap, int addr, int kind)
+static int wm8753_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct snd_soc_device *socdev = wm8753_socdev;
- struct wm8753_setup_data *setup = socdev->codec_data;
struct snd_soc_codec *codec = socdev->codec;
- struct i2c_client *i2c;
int ret;
- if (addr != setup->i2c_address)
- return -ENODEV;
-
- client_template.adapter = adap;
- client_template.addr = addr;
-
- i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
- if (!i2c)
- return -ENOMEM;
-
i2c_set_clientdata(i2c, codec);
codec->control_data = i2c;
- ret = i2c_attach_client(i2c);
- if (ret < 0) {
- pr_err("failed to attach codec at addr %x\n", addr);
- goto err;
- }
-
ret = wm8753_init(socdev);
- if (ret < 0) {
+ if (ret < 0)
pr_err("failed to initialise WM8753\n");
- goto err;
- }
-
- return ret;
-err:
- kfree(i2c);
return ret;
}
-static int wm8753_i2c_detach(struct i2c_client *client)
+static int wm8753_i2c_remove(struct i2c_client *client)
{
struct snd_soc_codec *codec = i2c_get_clientdata(client);
- i2c_detach_client(client);
kfree(codec->reg_cache);
- kfree(client);
return 0;
}
-static int wm8753_i2c_attach(struct i2c_adapter *adap)
-{
- return i2c_probe(adap, &addr_data, wm8753_codec_probe);
-}
+static const struct i2c_device_id wm8753_i2c_id[] = {
+ { "wm8753", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
-/* corgi i2c codec control layer */
static struct i2c_driver wm8753_i2c_driver = {
.driver = {
.name = "WM8753 I2C Codec",
.owner = THIS_MODULE,
},
- .id = I2C_DRIVERID_WM8753,
- .attach_adapter = wm8753_i2c_attach,
- .detach_client = wm8753_i2c_detach,
- .command = NULL,
+ .probe = wm8753_i2c_probe,
+ .remove = wm8753_i2c_remove,
+ .id_table = wm8753_i2c_id,
};
-static struct i2c_client client_template = {
- .name = "WM8753",
- .driver = &wm8753_i2c_driver,
+static int wm8753_add_i2c_device(struct platform_device *pdev,
+ const struct wm8753_setup_data *setup)
+{
+ struct i2c_board_info info;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ int ret;
+
+ ret = i2c_add_driver(&wm8753_i2c_driver);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "can't add i2c driver\n");
+ return ret;
+ }
+
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ info.addr = setup->i2c_address;
+ strlcpy(info.type, "wm8753", I2C_NAME_SIZE);
+
+ adapter = i2c_get_adapter(setup->i2c_bus);
+ if (!adapter) {
+ dev_err(&pdev->dev, "can't get i2c adapter %d\n",
+ setup->i2c_bus);
+ goto err_driver;
+ }
+
+ client = i2c_new_device(adapter, &info);
+ i2c_put_adapter(adapter);
+ if (!client) {
+ dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
+ (unsigned int)info.addr);
+ goto err_driver;
+ }
+
+ return 0;
+
+err_driver:
+ i2c_del_driver(&wm8753_i2c_driver);
+ return -ENODEV;
+}
+#endif
+
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit wm8753_spi_probe(struct spi_device *spi)
+{
+ struct snd_soc_device *socdev = wm8753_socdev;
+ struct snd_soc_codec *codec = socdev->codec;
+ int ret;
+
+ codec->control_data = spi;
+
+ ret = wm8753_init(socdev);
+ if (ret < 0)
+ dev_err(&spi->dev, "failed to initialise WM8753\n");
+
+ return ret;
+}
+
+static int __devexit wm8753_spi_remove(struct spi_device *spi)
+{
+ return 0;
+}
+
+static struct spi_driver wm8753_spi_driver = {
+ .driver = {
+ .name = "wm8753",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8753_spi_probe,
+ .remove = __devexit_p(wm8753_spi_remove),
};
+
+static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
+{
+ struct spi_transfer t;
+ struct spi_message m;
+ u8 msg[2];
+
+ if (len <= 0)
+ return 0;
+
+ msg[0] = data[0];
+ msg[1] = data[1];
+
+ spi_message_init(&m);
+ memset(&t, 0, (sizeof t));
+
+ t.tx_buf = &msg[0];
+ t.len = len;
+
+ spi_message_add_tail(&t, &m);
+ spi_sync(spi, &m);
+
+ return len;
+}
#endif
+
static int wm8753_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
@@ -1748,14 +1806,17 @@ static int wm8753_probe(struct platform_device *pdev)
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
if (setup->i2c_address) {
- normal_i2c[0] = setup->i2c_address;
codec->hw_write = (hw_write_t)i2c_master_send;
- ret = i2c_add_driver(&wm8753_i2c_driver);
+ ret = wm8753_add_i2c_device(pdev, setup);
+ }
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ if (setup->spi) {
+ codec->hw_write = (hw_write_t)wm8753_spi_write;
+ ret = spi_register_driver(&wm8753_spi_driver);
if (ret != 0)
- printk(KERN_ERR "can't add i2c driver");
+ printk(KERN_ERR "can't add spi driver");
}
-#else
- /* Add other interfaces here */
#endif
if (ret != 0) {
@@ -1796,8 +1857,12 @@ static int wm8753_remove(struct platform_device *pdev)
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ i2c_unregister_device(codec->control_data);
i2c_del_driver(&wm8753_i2c_driver);
#endif
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&wm8753_spi_driver);
+#endif
kfree(codec->private_data);
kfree(codec);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-15 05:51:21 +0000