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-rw-r--r--sound/soc/codecs/wm8996.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index e5e46075c365..e386d25aba82 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -2054,7 +2054,7 @@ static int wm8996_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
struct i2c_client *i2c = to_i2c_client(codec->dev);
struct _fll_div fll_div;
unsigned long timeout;
- int ret, reg;
+ int ret, reg, retry;
/* Any change? */
if (source == wm8996->fll_src && Fref == wm8996->fll_fref &&
@@ -2141,17 +2141,29 @@ static int wm8996_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
else
timeout = msecs_to_jiffies(2);
- /* Allow substantially longer if we've actually got the IRQ */
+ /* Allow substantially longer if we've actually got the IRQ, poll
+ * at a slightly higher rate if we don't.
+ */
if (i2c->irq)
- timeout *= 1000;
+ timeout *= 10;
+ else
+ timeout /= 2;
- ret = wait_for_completion_timeout(&wm8996->fll_lock, timeout);
+ for (retry = 0; retry < 10; retry++) {
+ ret = wait_for_completion_timeout(&wm8996->fll_lock,
+ timeout);
+ if (ret != 0) {
+ WARN_ON(!i2c->irq);
+ break;
+ }
- if (ret == 0 && i2c->irq) {
+ ret = snd_soc_read(codec, WM8996_INTERRUPT_RAW_STATUS_2);
+ if (ret & WM8996_FLL_LOCK_STS)
+ break;
+ }
+ if (retry == 10) {
dev_err(codec->dev, "Timed out waiting for FLL\n");
ret = -ETIMEDOUT;
- } else {
- ret = 0;
}
dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);