Пример #1
0
static int wm8971_probe(struct snd_soc_codec *codec)
{
	int ret = 0;
	u16 reg;

	INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work);
	wm8971_workq = create_workqueue("wm8971");
	if (wm8971_workq == NULL)
		return -ENOMEM;

	wm8971_reset(codec);

	/* charge output caps - set vmid to 5k for quick power up */
	reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
	snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
	codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
	queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
		msecs_to_jiffies(1000));

	/* set the update bits */
	snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100);

	return ret;
}
Пример #2
0
static int wm8971_probe(struct snd_soc_codec *codec)
{
	struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
	int ret = 0;
	u16 reg;

	ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type);
	if (ret < 0) {
		printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret);
		return ret;
	}

	INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work);
	wm8971_workq = create_workqueue("wm8971");
	if (wm8971_workq == NULL)
		return -ENOMEM;

	wm8971_reset(codec);

	/* charge output caps - set vmid to 5k for quick power up */
	reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
	snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
	codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
	queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
		msecs_to_jiffies(1000));

	/* set the update bits */
	snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100);

	return ret;
}