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authorLars-Peter Clausen <lars@metafoo.de>2014-05-06 10:32:15 +0200
committerMark Brown <broonie@linaro.org>2014-05-12 22:06:34 +0100
commitce85a4d726ecd286f933d4eedf01c5acb4f47a38 (patch)
tree97dc538834a6c246e0a9083d62e8e92e67ed55b1 /sound/soc/soc-dapm.c
parentca5106ae3da0179dcee3ae21f3ea94f62e9fdb0c (diff)
downloadop-kernel-dev-ce85a4d726ecd286f933d4eedf01c5acb4f47a38.zip
op-kernel-dev-ce85a4d726ecd286f933d4eedf01c5acb4f47a38.tar.gz
ASoC: dapm: Fix SUSPEND -> OFF bias sequence
Currently when the DAPM context bias level is SUSPEND and the target bias level is OFF dapm_pre_sequence_async() will first transition to PREPARE and dapm_post_sequence_async() will then transition back from PREPARE to STANDBY and then to OFF. This patch makes sure that dapm_pre_sequence_async() only transitions to PREPARE when either going to ON or away from ON. This avoids the extra unnecessary transitions. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r--sound/soc/soc-dapm.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index ef78a69..6d6ceee 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1612,8 +1612,11 @@ static void dapm_pre_sequence_async(void *data, async_cookie_t cookie)
"ASoC: Failed to turn on bias: %d\n", ret);
}
- /* Prepare for a STADDBY->ON or ON->STANDBY transition */
- if (d->bias_level != d->target_bias_level) {
+ /* Prepare for a transition to ON or away from ON */
+ if ((d->target_bias_level == SND_SOC_BIAS_ON &&
+ d->bias_level != SND_SOC_BIAS_ON) ||
+ (d->target_bias_level != SND_SOC_BIAS_ON &&
+ d->bias_level == SND_SOC_BIAS_ON)) {
ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE);
if (ret != 0)
dev_err(d->dev,
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