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ASoC: Report errors when we have a WM8962 IRQ and don't get FLL lock 

We really should be getting the interrupt - if we don't get one it's very
likely that the configuration is incorrect and audio will fail. Also
increase the timeout substantially in this case for safety.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Mark Brown 2011-06-07 23:16:29 +01:00
parent c7356da9e2
commit 649a1a0ef2
1 changed files with 32 additions and 5 deletions
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37
sound/soc/codecs/wm8962.c
View File

@ -2186,6 +2186,8 @@ static int sysclk_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
unsigned long timeout;
int src;
int fll;
@ -2205,9 +2207,19 @@ static int sysclk_event(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
if (fll)
if (fll) {
snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
WM8962_FLL_ENA, WM8962_FLL_ENA);
if (wm8962->irq) {
timeout = msecs_to_jiffies(5);
timeout = wait_for_completion_timeout(&wm8962->fll_lock,
timeout);
if (timeout == 0)
dev_err(codec->dev,
"Timed out starting FLL\n");
}
}
break;
case SND_SOC_DAPM_POST_PMD:
@ -3263,16 +3275,31 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
/* This should be a massive overestimate */
timeout = msecs_to_jiffies(1);
ret = 0;
wait_for_completion_timeout(&wm8962->fll_lock, timeout);
if (fll1 & WM8962_FLL_ENA) {
/* This should be a massive overestimate but go even
* higher if we'll error out
*/
if (wm8962->irq)
timeout = msecs_to_jiffies(5);
else
timeout = msecs_to_jiffies(1);
timeout = wait_for_completion_timeout(&wm8962->fll_lock,
timeout);
if (timeout == 0 && wm8962->irq) {
dev_err(codec->dev, "FLL lock timed out");
ret = -ETIMEDOUT;
}
}
wm8962->fll_fref = Fref;
wm8962->fll_fout = Fout;
wm8962->fll_src = source;
return 0;
return ret;
}
static int wm8962_mute(struct snd_soc_dai *dai, int mute)