#include "wm8990.h"
-#define AUDIO_NAME "wm8990"
#define WM8990_VERSION "0.2"
/* codec private data */
0x0008, /* R60 - PLL1 */
0x0031, /* R61 - PLL2 */
0x0026, /* R62 - PLL3 */
+ 0x0000, /* R63 - Driver internal */
};
/*
unsigned int reg, unsigned int value)
{
u16 *cache = codec->reg_cache;
- BUG_ON(reg > (ARRAY_SIZE(wm8990_reg)) - 1);
- /* Reset register is uncached */
- if (reg == 0)
+ /* Reset register and reserved registers are uncached */
+ if (reg == 0 || reg > ARRAY_SIZE(wm8990_reg) - 1)
return;
cache[reg] = value;
* Set PCM DAI bit size and sample rate.
*/
static int wm8990_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
switch (level) {
case SND_SOC_BIAS_ON:
break;
+
case SND_SOC_BIAS_PREPARE:
+ /* VMID=2*50k */
+ val = wm8990_read_reg_cache(codec, WM8990_POWER_MANAGEMENT_1) &
+ ~WM8990_VMID_MODE_MASK;
+ wm8990_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x2);
break;
+
case SND_SOC_BIAS_STANDBY:
if (codec->bias_level == SND_SOC_BIAS_OFF) {
/* Enable all output discharge bits */
/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
wm8990_write(codec, WM8990_ANTIPOP2, WM8990_BUFIOEN);
- } else {
- /* ON -> standby */
+ /* Enable workaround for ADC clocking issue. */
+ wm8990_write(codec, WM8990_EXT_ACCESS_ENA, 0x2);
+ wm8990_write(codec, WM8990_EXT_CTL1, 0xa003);
+ wm8990_write(codec, WM8990_EXT_ACCESS_ENA, 0);
}
+
+ /* VMID=2*250k */
+ val = wm8990_read_reg_cache(codec, WM8990_POWER_MANAGEMENT_1) &
+ ~WM8990_VMID_MODE_MASK;
+ wm8990_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x4);
break;
case SND_SOC_BIAS_OFF:
.rates = WM8990_RATES,
.formats = WM8990_FORMATS,},
.ops = {
- .hw_params = wm8990_hw_params,},
- .dai_ops = {
+ .hw_params = wm8990_hw_params,
.digital_mute = wm8990_mute,
.set_fmt = wm8990_set_dai_fmt,
.set_clkdiv = wm8990_set_dai_clkdiv,
* low = 0x34
* high = 0x36
*/
-static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
-
-/* Magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
-static struct i2c_driver wm8990_i2c_driver;
-static struct i2c_client client_template;
-
-static int wm8990_codec_probe(struct i2c_adapter *adap, int addr, int kind)
+static int wm8990_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct snd_soc_device *socdev = wm8990_socdev;
- struct wm8990_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 == NULL)
- 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 = wm8990_init(socdev);
- if (ret < 0) {
+ if (ret < 0)
pr_err("failed to initialise WM8990\n");
- goto err;
- }
- return ret;
-err:
- kfree(i2c);
return ret;
}
-static int wm8990_i2c_detach(struct i2c_client *client)
+static int wm8990_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 wm8990_i2c_attach(struct i2c_adapter *adap)
-{
- return i2c_probe(adap, &addr_data, wm8990_codec_probe);
-}
+static const struct i2c_device_id wm8990_i2c_id[] = {
+ { "wm8990", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8990_i2c_id);
static struct i2c_driver wm8990_i2c_driver = {
.driver = {
.name = "WM8990 I2C Codec",
.owner = THIS_MODULE,
},
- .attach_adapter = wm8990_i2c_attach,
- .detach_client = wm8990_i2c_detach,
- .command = NULL,
+ .probe = wm8990_i2c_probe,
+ .remove = wm8990_i2c_remove,
+ .id_table = wm8990_i2c_id,
};
-static struct i2c_client client_template = {
- .name = "WM8990",
- .driver = &wm8990_i2c_driver,
-};
+static int wm8990_add_i2c_device(struct platform_device *pdev,
+ const struct wm8990_setup_data *setup)
+{
+ struct i2c_board_info info;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ int ret;
+
+ ret = i2c_add_driver(&wm8990_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, "wm8990", 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(&wm8990_i2c_driver);
+ return -ENODEV;
+}
#endif
static int wm8990_probe(struct platform_device *pdev)
struct wm8990_setup_data *setup;
struct snd_soc_codec *codec;
struct wm8990_priv *wm8990;
- int ret = 0;
+ int ret;
pr_info("WM8990 Audio Codec %s\n", WM8990_VERSION);
INIT_LIST_HEAD(&codec->dapm_paths);
wm8990_socdev = socdev;
+ ret = -ENODEV;
+
#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(&wm8990_i2c_driver);
- if (ret != 0)
- printk(KERN_ERR "can't add i2c driver");
+ ret = wm8990_add_i2c_device(pdev, setup);
}
-#else
- /* Add other interfaces here */
#endif
if (ret != 0) {
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(&wm8990_i2c_driver);
#endif
kfree(codec->private_data);
projects / mirror_ubuntu-jammy-kernel.git / blobdiff