Commit d4b3d0fb authored by Mark Brown's avatar Mark Brown

ASoC: wm8996: Inline wm8996_reset() and optimise cache-only usage

There is only one caller and this allows us to cleanly leave the CODEC
with the internal LDO powered down which is the default state we're
looking for and means that we can robustly disable the register cache
only when we either disable the LDO or power down the external
regulators.
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 625c4888
......@@ -1528,18 +1528,6 @@ static bool wm8996_volatile_register(struct device *dev, unsigned int reg)
}
}
static int wm8996_reset(struct wm8996_priv *wm8996)
{
if (wm8996->pdata.ldo_ena > 0) {
gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 1);
return 0;
} else {
return regmap_write(wm8996->regmap, WM8996_SOFTWARE_RESET,
0x8915);
}
}
static const int bclk_divs[] = {
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96
};
......@@ -1631,8 +1619,10 @@ static int wm8996_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_OFF:
regcache_cache_only(codec->control_data, true);
if (wm8996->pdata.ldo_ena >= 0)
if (wm8996->pdata.ldo_ena >= 0) {
gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
regcache_cache_only(codec->control_data, true);
}
regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies),
wm8996->supplies);
break;
......@@ -3019,13 +3009,18 @@ static __devinit int wm8996_i2c_probe(struct i2c_client *i2c,
dev_info(&i2c->dev, "revision %c\n",
(reg & WM8996_CHIP_REV_MASK) + 'A');
ret = wm8996_reset(wm8996);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to issue reset\n");
if (wm8996->pdata.ldo_ena > 0) {
gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
regcache_cache_only(wm8996->regmap, true);
} else {
ret = regmap_write(wm8996->regmap, WM8996_SOFTWARE_RESET,
0x8915);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
goto err_regmap;
}
}
regcache_cache_only(wm8996->regmap, true);
regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies);
wm8996_init_gpio(wm8996);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment