diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-01-18 17:14:44 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-01-19 14:02:32 +0100 |
| commit | 474b62d6eee733abdcd36f8e3e5ce504fbb9110b (patch) | |
| tree | 1b399ebd627111f806fe7a20daa9f3df87ff567a /sound/soc/soc-dapm.c | |
| parent | ASoC: Add support for sequencing within (diff) | |
| download | linux-474b62d6eee733abdcd36f8e3e5ce504fbb9110b.tar.xz linux-474b62d6eee733abdcd36f8e3e5ce504fbb9110b.zip | |
ASoC: Provide per widget type callback when executing DAPM sequences
Many modern devices have features such as DC servos which take time to start.
Currently these are handled by per-widget events but this makes it difficult
to paralleise operations on multiple widgets, meaning delays can end up
being needlessly serialised. By providing a callback to drivers when all
widgets of a given type have been handled during a DAPM sequence the core
allows drivers to start operations separately and wait for them to complete
much more simply.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/soc-dapm.c')
| -rw-r--r-- | sound/soc/soc-dapm.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index eb7436c7acad..37b376f4c75d 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -878,7 +878,7 @@ static void dapm_seq_run(struct snd_soc_dapm_context *dapm, int cur_subseq = -1; int cur_reg = SND_SOC_NOPM; struct snd_soc_dapm_context *cur_dapm = NULL; - int ret; + int ret, i; int *sort; if (power_up) @@ -895,6 +895,13 @@ static void dapm_seq_run(struct snd_soc_dapm_context *dapm, if (!list_empty(&pending)) dapm_seq_run_coalesced(cur_dapm, &pending); + if (cur_dapm && cur_dapm->seq_notifier) { + for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) + if (sort[i] == cur_sort) + cur_dapm->seq_notifier(cur_dapm, + i); + } + INIT_LIST_HEAD(&pending); cur_sort = -1; cur_subseq = -1; @@ -956,6 +963,13 @@ static void dapm_seq_run(struct snd_soc_dapm_context *dapm, if (!list_empty(&pending)) dapm_seq_run_coalesced(dapm, &pending); + + if (cur_dapm && cur_dapm->seq_notifier) { + for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) + if (sort[i] == cur_sort) + cur_dapm->seq_notifier(cur_dapm, + i); + } } static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |