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ASoC: cs35l35: Correct handling of PDN_DONE with external boost

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When using an external boost supply the PDN_DONE bit is not set, update
the handling in this case to use to use an appropriate fixed delay.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2017-04-06 13:52:13 +01:00 committed by Mark Brown
parent 2c84afb52e
commit 77b329d194
2 changed files with 26 additions and 8 deletions
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2
include/sound/cs35l35.h
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@ -96,6 +96,8 @@ struct cs35l35_platform_data {
int adv_channel;
/* Shared Boost for stereo */
bool shared_bst;
/* Specifies this amp is using an external boost supply */
bool ext_bst;
/* ClassH Algorithm */
struct classh_cfg classh_algo;
/* Monitor Config */

32
sound/soc/codecs/cs35l35.c
View File

@ -162,6 +162,27 @@ static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
}
}
static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35)
{
int ret;
if (cs35l35->pdata.ext_bst) {
usleep_range(5000, 5500);
return 0;
}
reinit_completion(&cs35l35->pdn_done);
ret = wait_for_completion_timeout(&cs35l35->pdn_done,
msecs_to_jiffies(100));
if (ret == 0) {
dev_err(cs35l35->dev, "PDN_DONE did not complete\n");
return -ETIMEDOUT;
}
return 0;
}
static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
@ -191,14 +212,7 @@ static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL,
CS35L35_AMP_DIGSFT_MASK, 0);
reinit_completion(&cs35l35->pdn_done);
ret = wait_for_completion_timeout(&cs35l35->pdn_done,
msecs_to_jiffies(100));
if (ret == 0) {
dev_err(codec->dev, "TIMEOUT PDN_DONE did not complete in 100ms\n");
ret = -ETIMEDOUT;
}
ret = cs35l35_wait_for_pdn(cs35l35);
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_MCLK_DIS_MASK,
@ -1198,6 +1212,8 @@ static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
"cirrus,shared-boost");
}
pdata->ext_bst = of_property_read_bool(np, "cirrus,external-boost");
pdata->gain_zc = of_property_read_bool(np, "cirrus,amp-gain-zc");
classh = of_get_child_by_name(np, "cirrus,classh-internal-algo");