static int adau1701_load_firmware(struct snd_soc_codec *codec)
{
return process_sigma_firmware(codec->control_data, ADAU1701_FIRMWARE);
}
static int adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv)
{
struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
struct i2c_client *client = to_i2c_client(codec->dev);
int ret;
if (clkdiv != ADAU1707_CLKDIV_UNSET &&
gpio_is_valid(adau1701->gpio_pll_mode[0]) &&
gpio_is_valid(adau1701->gpio_pll_mode[1])) {
switch (clkdiv) {
case 64:
gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 0);
gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 0);
break;
case 256:
gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 0);
gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 1);
break;
case 384:
gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 1);
gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 0);
break;
case 0: /* fallback */
case 512:
gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 1);
gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 1);
break;
}
}
adau1701->pll_clkdiv = clkdiv;
if (gpio_is_valid(adau1701->gpio_nreset)) {
gpio_set_value_cansleep(adau1701->gpio_nreset, 0);
/* minimum reset time is 20ns */
udelay(1);
gpio_set_value_cansleep(adau1701->gpio_nreset, 1);
/* power-up time may be as long as 85ms */
mdelay(85);
}
/*
* Postpone the firmware download to a point in time when we
* know the correct PLL setup
*/
if (clkdiv != ADAU1707_CLKDIV_UNSET) {
ret = process_sigma_firmware(client, ADAU1701_FIRMWARE);
if (ret) {
dev_warn(codec->dev, "Failed to load firmware\n");
return ret;
}
}
regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);
regcache_mark_dirty(adau1701->regmap);
regcache_sync(adau1701->regmap);
return 0;
}